TEA6848H [NXP]
New In Car Entertainment car radio tuner IC with Precision Adjacent Channel Suppression; 新的车载娱乐汽车收音机调谐器IC与精密相邻信道抑制
| 型号： | TEA6848H |
| 厂家： | 
NXP |
| 描述： | New In Car Entertainment car radio tuner IC with Precision Adjacent Channel Suppression |
| 文件： | 总63页 (文件大小：391K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
INTEGRATED CIRCUITS
DATA SHEET
TEA6848H
New In Car Entertainment car radio
tuner IC with Precision Adjacent
Channel Suppression
(NICE-PACS)
Product specification
2004 Nov 12
Supersedes data of 2004 Oct 21
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
TEA6848H
CONTENTS
12
I2C-BUS PROTOCOL
12.1
I2C-bus specification
Data transfer
I2C-bus pull-up resistors
Frequency setting
Default settings
1
2
3
4
5
6
7
FEATURES
12.1.1
12.1.2
12.1.3
12.1.4
12.1.5
12.2
12.2.1
12.2.2
12.2.3
12.2.4
12.2.5
12.2.6
12.2.7
12.2.8
12.2.9
12.2.10
GENERAL DESCRIPTION
ORDERING INFORMATION
QUICK REFERENCE DATA
BLOCK DIAGRAM
Timing requirements
I2C-bus protocol
PINNING
Data transfer mode and IC address
Write mode: data byte 0
Write mode: data byte 1
Write mode: data byte 2
Write mode: data byte 3
Write mode: data byte 4
Write mode: data byte 5
Write mode: data byte 6
Write mode: data byte 7
Read mode: data byte 0
FUNCTIONAL DESCRIPTION
7.1
Oscillators
VCO
PLL
Crystal oscillator
DAA
FM signal channel
FM mixer 1
Buffer output for weather band flag
(pin WBFLAG)
FM keyed AGC
FM IF amplifier
FM mixer 2
FM IF2 dynamic selectivity
FM quadrature demodulator
Adjacent channel detector and threshold
extension
Bandwidth control ‘active’ flag (pin IFBWFLAG)
Bandwidth control monitor voltage (pin VIFBW
AM signal channel
7.1.1
7.1.2
7.1.3
7.2
7.3
7.3.1
7.3.2
13
TEST AND APPLICATION INFORMATION
INTERNAL CIRCUITRY
PACKAGE OUTLINE
7.3.3
7.3.4
7.3.5
7.3.6
7.3.7
7.3.8
14
15
16
SOLDERING
16.1
Introduction to soldering surface mount
packages
Reflow soldering
Wave soldering
Manual soldering
16.2
16.3
16.4
16.5
7.3.9
7.3.10
7.4
7.4.1
7.4.2
7.4.3
7.4.4
7.5
)
Suitability of surface mount IC packages for
wave and reflow soldering methods
AM tuner including mixer 1 and mixer 2
AM RF AGC
AM detector
17
18
19
20
DATA SHEET STATUS
DEFINITIONS
AM noise blanker
DISCLAIMERS
PURCHASE OF PHILIPS I2C COMPONENTS
FM and AM level detector
IF2 filter gain alignment
Frequency offset detector/alignment
7.6
7.7
8
LIMITING VALUES
9
THERMAL CHARACTERISTICS
DC CHARACTERISTICS
AC CHARACTERISTICS
10
11
2004 Nov 12
2
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
TEA6848H
1
FEATURES
• FM mixer 1 for conversion of FM RF (65 to 108 MHz
and US weather band) to IF of 10.7 MHz; the mixer
provides inherent image rejection; for European and
US FM band/WB (weather band) the mixer is driven with
a ‘high’ injection Local Oscillator (LO); in Japan
FM band and East Europe FM band the mixer is driven
with a ‘low’ injection LO
• AM cascode AGC stage and RF PIN diode drive circuit;
AGC threshold detection at AM mixer 1 and IF2 AGC
input; threshold for detection at mixer 1 input is
programmable via the I2C-bus
• AM mixer 1 for conversion of AM RF to AM IF1 of
10.7 MHz
• AM IF2 AGC and demodulator
• LC tuner oscillator providing mixer frequencies for
FM mixer and AM mixer 1
• AM AF output switchable to provide AM IF2 for
AM stereo decoder
• AM mixer 2 for conversion of AM IF1 to AM IF2 of
450 kHz
• AM noise blanker with detection at IF1 and blanking at
AM IF2
• Crystal oscillator providing mixer frequencies for
AM mixer 2 and FM mixer 2 and reference for
synthesizer PLL, IF count, timing for Radio Data System
(RDS) update and reference frequency for car audio
signal processor ICs
• Software controlled flag output
• Buffer output for weather band flag
• Adjacent channel detector, modulation detector and
frequency offset for instantaneous bandwidth control of
the integrated filter
• Fast synthesizer PLL tuning system with local control for
inaudible RDS updating
• Flag and voltage output indicating the actual bandwidth
• Timing function for RDS update algorithm and control
signal output for car audio signal processor ICs
(TEA688x, SAA77xx, TEF689x)
• I2C-bus alignment of centre frequency and gain variation
as functions of bandwidth of the IF2 filter and centre
frequency of the offset detector.
• Digital alignment circuit for bus controlled matching of
oscillator tuning voltage to FM antenna tank circuit
tuning voltage
2
GENERAL DESCRIPTION
The TEA6848H is a single IC with car radio tuner for AM,
FM and Weather Band (WB) intended for microcontroller
tuning with the I2C-bus. It provides the following functions:
• AGC PIN diode drive circuit for FM RF AGC; AGC
detection at FM mixer input; the AGC PIN diode drive
can be activated by the I2C-bus as a local function for
search tuning; AGC threshold is a programmable and
keyed function switchable via the I2C-bus
• AM double conversion receiver for LW, MW and SW
(31 m, 41 m and 49 m bands) with IF1 = 10.7 MHz and
IF2 = 450 kHz
• FM IF linear amplifier with high dynamic input range
• FM double conversion receiver with integrated image
rejection for IF1 and for IF2 capable of selecting US FM,
US weather, Europe FM, East Europe FM and
Japan FM bands; fully integrated dynamic selectivity at
450 kHz FM IF2; FM demodulator with dynamic
threshold extension; centre frequency alignment of IF2
selectivity via the I2C-bus
• FM mixer 2 for conversion of FM IF1 to FM IF2 of
450 kHz with inherent image rejection
• Fully integrated dynamic selectivity and
FM demodulator at IF2; improved sensitivity with
dynamic threshold extension; centre frequency of IF2
selectivity alignment via the I2C-bus
• Level detector for AM and FM with temperature
compensated output voltage; starting point and slope of
level output is programmable via the I2C-bus
• The tuning system includes VCO, crystal oscillator and
PLL synthesizer on one chip.
3
ORDERING INFORMATION
PACKAGE
TYPE NUMBER
NAME
DESCRIPTION
VERSION
TEA6848H
LQFP80 plastic low profile quad flat package; 80 leads; body 12 × 12 × 1.4 mm
SOT315-1
2004 Nov 12
3
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
TEA6848H
4
QUICK REFERENCE DATA
SYMBOL
VDDA(n)
IDDA(tot)
PARAMETER
CONDITIONS
MIN.
TYP.
8.5
MAX.
UNIT
analog supply voltage 1 to 4 and 6
8
9
V
sum of analog supply
currents 1 to 4 and 6
FM mode
45
56
50
5
67
mA
mA
V
AM mode
40
60
VDDA5
IDDA5
analog supply voltage 5
analog supply current 5
4.75
−
5.25
−
FM mode
AM mode
7.4
11
5
mA
mA
V
−
−
VDDD
IDDD
digital supply voltage
digital supply current
4.75
21
5.25
31
FM mode
AM mode
LW
26
27
−
mA
mA
MHz
MHz
MHz
MHz
22
32
fAM(ant)
AM input frequency
0.144
0.522
5.730
65
0.288
1.710
9.99
108
MW
−
SW
−
fFM(ant)
FM input frequency
−
fFM(WB)(ant) FM weather band input frequency
Tamb ambient temperature
AM overall system parameters; see Figs 10 and 11
162.4
−40
−
162.55 MHz
−
+85
°C
(S+N)/N
THD
signal plus noise-to-noise ratio
total harmonic distortion
sensitivity (RMS value)
m = 0.3; BAF = 2.15 kHz
m = 0.8; fmod = 1 kHz
−
−
−
59
0.3
45
−
−
−
dB
%
Vsens(rms)
m = 0.3; fmod = 1 kHz;
(S+N)/N = 26 dB;
µV
with European dummy
aerial 15 pF/60 pF;
BAF = 2.15 kHz
FM overall system parameters; see Figs 10 and 11
(S+N)/N
signal plus noise-to-noise ratio
∆f = 22.5 kHz;
−
63
−
dB
de-emphasis = 50 µs;
BAF = 300 Hz to 15 kHz
THD
total harmonic distortion
sensitivity (RMS value)
∆f = 75 kHz;
with 2 × SFE10.7MS3
−
−
0.35
1.4
−
%
Vsens(rms)
∆f = 22.5 kHz;
2
µV
fmod = 1 kHz;
(S+N)/N = 26 dB;
de-emphasis = 50 µs;
BAF = 300 Hz to 15 kHz;
with 75 Ω dummy antenna
2004 Nov 12
4
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MPXDCFDB
CPOUT
OSCTNK
V
VCOGND
DGND
AFSAMPLE
FREF
TRDSMUTE
AMAFIF2
V
V
V
V
i.c.
41
OSCFDB
AFHOLD
RDSMPX FMMPX
DDA5
59
MODDET
DDA4
DDD
tune
42
DDA3
44
50
43
45 46
47
48 49
51
52 53
RDS
54
57
58
60
61
55
56
40
DAAIN
V
DDA6
AMPLIFIER
x1/ x15
POWER
SUPPLY
WB
VCO
TUNING SYSTEM
UPDATE
2
I C-bus
39 ANTENNA
DAA
62
63
DAATD
IFBWFLAG
SDA
AM STEREO
RDS
MUTE
2
MUX
I C-BUS
38
37
64
DAAOUT
SCL
AM
TEA6848H
2
TKEYEDAGC
TFMAGC
IFMAGC
I C-bus
IF
COUNT
AM
DEMOD
FM
AGC
36
35
2
LEVEL
I C-bus
WB/JAPAN/OIRT
34
33
FM
AM
WBFLAG
FMMIXIN2
i.c.
RFGND
÷1/ ÷2/
÷3
65
66
32
31
30
V
×
BUFFER
MPXOUT
IFBW
FM
IF2GND
90°
I/Q MIXER 1
67
FMMIXIN1
CINT
×
IF
FILTER
29
FM
DEMOD
BANDWIDTH
CONTROL
AM NOISE
DETECTOR
V
90°
ref(MIX)
FM
MIXER 2
68
MODETOUT
TACD
69
70
28
27
IAMAGC
LEVEL
V
THFAMAGC
level(AMFM)
71
72
73
26
25
XTAL1
2
TAFAMAGC
VAMCAS
I C-bus
CRYSTAL
PEAK/
AVERAGE
AM
20.5 MHz
XTALGND
÷2
OSCILLATOR
AGC
24
LEVEL
XTAL2
VAMCASFB
74
75
V
level(ACD)
2
×
AM
I C-
BLANK
PULSE
÷10/
÷20
LEVEL
DAA
STABI
ACDTHRES
bus
2
2
I C-bus
I C-bus
MIXER 2
23
76
77
78
AMMIX1IN
IREF
AMMIX2OUT1
×
AM
22
21
AMMIX2OUT2
MIXER 1
AMMIX1DEC
SWFLAG
79
80
CAGC
V
ref(lim)
14
13
17
12
11 10
20
19
18
16
15
9
8
7
5
4
3
2
1
6
MHC436
MIX1OUT2
IF2FILI
IFAMPDEC
IFAMPIN
V
AMNBHOLD AMIF2DEC FMLIMDCFDB1
AMIF2IN
IF1GND
DDA1
IFAMPOUT
MIX1OUT1
IF2FILQ
IREFFMIF2
FMLIMDCFDB2
V
DDA2
IFCDAATEST
FMMIX2DEC FMMIX2IN
COFFSET
Fig.1 Block diagram.
ahdnbok,uflapegwidt
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
TEA6848H
6
PINNING
SYMBOL
PIN
DESCRIPTION
FMLIMDCFDB1
FMLIMDCFDB2
AMIF2DEC
IREFFMIF2
AMNBHOLD
AMIF2IN
1
decoupling in-phase FM limiter
2
decoupling quadrature phase FM limiter
decoupling for AM IF2 input
3
4
reference current for FM IF2
5
AM noise blanker threshold
6
AM IF2 input (450 kHz) for demodulator AGC and AM level detector
AM IF1 ground
IF1GND
7
FMMIX2IN
COFFSET
FMMIX2DEC
IFCDAATEST
IFAMPOUT
VDDA1
8
FM mixer 2 input
9
DC feedback for offset compensation RDS mute
FM mixer 2 decoupling
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
test pin for IF centre DAA
IF amplifier output (10.7 MHz)
analog supply voltage 1 (8.5 V) for FM IF amplifier
FM IF amplifier and AM mixer 2 input (10.7 MHz)
FM IF amplifier and AM mixer 2 decoupling
test output quadrature phase FM IF2 filter
test output in-phase FM IF2 filter
FM mixer and AM mixer 1 IF output 1 (10.7 MHz)
FM mixer and AM mixer 1 IF output 2 (10.7 MHz)
analog supply voltage 2 (8.5 V) for FM and AM RF
output software programmable flag
AM mixer 1 decoupling
IFAMPIN
IFAMPDEC
IF2FILQ
IF2FILI
MIX1OUT1
MIX1OUT2
VDDA2
SWFLAG
AMMIX1DEC
AMMIX1IN
VAMCASFB
VAMCAS
TAFAMAGC
THFAMAGC
IAMAGC
AM mixer 1 input
feedback for cascode AM AGC
cascode AM AGC
AF time constant of AM front-end AGC
HF time constant of AM front-end AGC
PIN diode drive current output of AM front-end AGC
reference voltage for FM RF mixer
FM RF mixer input 1
Vref(MIX)
FMMIXIN1
RFGND
RF ground
i.c.
internal connection
FMMIXIN2
WBFLAG
IFMAGC
FM RF mixer input 2
buffered weather band flag output
PIN diode drive current output of FM front-end AGC
time constant of FM front-end AGC
time constant of keyed FM front-end AGC
output of digital auto alignment circuit for antenna tank circuit
TFMAGC
TKEYEDAGC
DAAOUT
DAATD
temperature compensation diode for digital auto alignment circuit for antenna tank circuit
input of digital auto alignment circuit for antenna tank circuit
DAAIN
2004 Nov 12
6
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
TEA6848H
SYMBOL
PIN
DESCRIPTION
i.c.
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
internal connection
tuning voltage
Vtune
CPOUT
VDDA3
charge pump output
analog supply voltage 3 (8.5 V) for tuning PLL
reference frequency output for signal processor IC
digital supply voltage (5 V)
FREF
VDDD
DGND
digital ground
VCOGND
OSCFDB
OSCTNK
VDDA4
VCO ground
VCO feedback
VCO tank circuit
analog supply voltage 4 (8.5 V) for VCO
DC feedback for FM MPX signal path
AF sample flag output for car audio signal processor IC
AF hold flag output for car audio signal processor IC
time constant for RDS update mute
AM demodulator AF output or IF2 output for AM stereo (multiplexed by I2C-bus)
MPX output for RDS decoder and signal processor (not muted)
FM demodulator MPX output
MPXDCFDB
AFSAMPLE
AFHOLD
TRDSMUTE
AMAFIF2
RDSMPX
FMMPX
VDDA5
analog supply voltage 5 (5 V) for on-chip power supply
modulation detector input
MODDET
VDDA6
analog supply voltage 6 (8.5 V) for on-chip power supply
IFBWFLAG
SDA
FM IF2 bandwidth flag output
I2C-bus data line input and output
I2C-bus clock line input
SCL
VIFBW
monitor voltage for FM IF2 bandwidth
AM IF2 ground
IF2GND
CINT
demodulator loop filter
MODETOUT
TACD
modulation detector output
adjacent channel detector time constant
level voltage output for AM and FM
crystal oscillator 1
Vlevel(AMFM)
XTAL1
XTALGND
XTAL2
crystal oscillator ground
crystal oscillator 2
Vlevel(ACD)
ACDTHRES
IREF
level voltage output for adjacent channel detector
adjacent channel detector threshold
reference current for power supply
AM mixer 2 output 1 (450 kHz)
AMMIX2OUT1
AMMIX2OUT2
CAGC
AM mixer 2 output 2 (450 kHz)
AM IF AGC capacitor/offset detector alignment (FM)
limiter reference voltage
Vref(lim)
2004 Nov 12
7
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
TEA6848H
FMLIMDCFDB1
FMLIMDCFDB2
AMIF2DEC
IREFFMIF2
AMNBHOLD
AMIF2IN
1
2
3
4
5
6
7
8
9
60 MODDET
V
59
DDA5
58 FMMPX
57 RDSMPX
56 AMAFIF2
55 TRDSMUTE
54 AFHOLD
IF1GND
FMMIX2IN
COFFSET
53 AFSAMPLE
52 MPXDCFDB
V
51
FMMIX2DEC 10
IFCDAATEST 11
IFAMPOUT 12
DDA4
TEA6848H
50 OSCTNK
49 OSCFDB
48 VCOGND
47 DGND
V
13
DDA1
IFAMPIN 14
IFAMPDEC 15
IF2FILQ 16
46
V
DDD
45 FREF
V
IF2FILI 17
44
DDA3
MIX1OUT1 18
MIX1OUT2 19
43 CPOUT
V
42
tune
V
20
41 i.c.
DDA2
MHC437
Fig.2 Pin configuration.
2004 Nov 12
8
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
TEA6848H
7
FUNCTIONAL DESCRIPTION
Oscillators
7.3
FM signal channel
7.1
7.3.1
FM MIXER 1
7.1.1
VCO
FM quadrature mixer converts FM RF (65 to 108 MHz and
weather band) to IF of 10.7 MHz. The FM mixer provides
inherent image rejection and high RF sensitivity.
The varactor tuned VCO provides the local oscillator signal
for both FM and AM mixer 1. It has a frequency range of
162.9 to 248.2 MHz.
It is capable of tuning the US FM, US weather,
Europe FM, Japan FM and East Europe FM bands:
7.1.2
PLL
• US FM = 87.9 to 107.9 MHz
Fast synthesizer PLL tuning system with local control for
inaudible RDS updating.
• US weather FM = 162.4 to 162.55 MHz
• Europe FM = 87.5 to 108 MHz
• Japan FM = 76 to 91 MHz
7.1.3
CRYSTAL OSCILLATOR
• East Europe FM = 65 to 74 MHz.
The crystal oscillator provides a 20.5 MHz signal that is
used for:
7.3.2
BUFFER OUTPUT FOR WEATHER BAND FLAG
(PIN WBFLAG)
• Reference frequency for frequency synthesizer PLL
• Local oscillator for AM mixer 2 and FM mixer 2
• Reference frequency for the IF counter
The buffer output on pin WBFLAG is HIGH for weather
band mode.
• Timing signal for the RDS update algorithm
7.3.3
FM KEYED AGC
• Reference frequency (75.368 kHz) for the TEA688x (car
audio signal processor - CASP) or TEF689x (car radio
integrated signal processor - CRISP).
The AGC threshold is programmable and the keyed AGC
function is switchable via the I2C-bus. AGC detection
occurs at the input of the first FM mixer. If the keyed AGC
function is activated, the AGC is keyed only by the narrow
band level. The AGC PIN diode drive can be activated via
the I2C-bus as a local function for search tuning. The AGC
sources a constant 10 mA current into the FM PIN diode in
AM mode.
7.2
DAA
To reduce the number of manual alignments in production
the following I2C-bus controlled Digital Auto Alignment
(DAA) functions are included:
• FM RF DAA
7.3.4
FM IF AMPLIFIER
– 7-bit DAA circuitry for the conversion of the VCO
tuning voltage to a controlled alignment voltage for
the FM antenna tank circuit
The FM IF amplifier provides 18 dB amplification with high
linearity over a wide dynamic range.
• FM and AM level DAA
7.3.5
FM MIXER 2
– Level DAA circuitry for alignment of slope (3-bit) and
starting point (5-bit) of the level curve
The FM mixer 2 converts 10.7 MHz FM IF1 to 450 kHz
FM IF2 in I and Q phase to achieve image rejection in the
demodulator.
• IF2 centre DAA
– Centre frequency alignment (7-bit) of integrated
FM IF2 dynamic selectivity.
2004 Nov 12
9
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
TEA6848H
7.3.6
FM IF2 DYNAMIC SELECTIVITY
7.4.2
AM RF AGC
The IF bandwidth of the FM IF2 is automatically adjusted
depending on modulation and reception conditions. The
centre frequency of the selectivity is adjusted by a 7-bit
instruction via the I2C-bus. The dynamic selectivity mode
and three fixed bandwidths (60, 90 and 130 kHz) can be
selected via the I2C-bus. The IF2 bandwidth is set to
13 kHz in weather band mode.
The AM wideband AGC in front of the first AM mixer is
realized first by a cascaded NPN transistor, which controls
the transconductance of the RF amplifier JFET with 10 dB
of AGC range. Second, an AM PIN diode stage with
antenna type and frequency dependent AGC range is
available. The minimum JFET drain source voltage is
controlled by a DC feedback loop (pin VAMCASFB) in
order to limit the cascode AGC range to 10 dB. If the
cascode AGC is not required, a simple RF AGC loop is
possible by using only a PIN diode. In this event
pins VAMCASFB and VAMCAS have to be open-circuit.
In FM mode, the cascade switches off the JFET bias
current to reduce total power consumption. The PIN diode
is biased by 1 mA in FM mode.
7.3.7
FM QUADRATURE DEMODULATOR
The FM quadrature demodulator is adjustment free.
7.3.8
ADJACENT CHANNEL DETECTOR AND THRESHOLD
EXTENSION
In the event of breakthrough of a strong neighbouring
transmitter, the IF2 bandwidth is reduced dynamically.
At low RF input voltages and low modulation levels the IF2
bandwidth is reduced to achieve improved sensitivity by
demodulator threshold extension.
The AGC detection points for AM AGC are at the first AM
mixer input (threshold programmable via the I2C-bus) and
the IF2 AGC input (fixed threshold).
7.4.3
AM DETECTOR
7.3.9
BANDWIDTH CONTROL ‘ACTIVE’ FLAG
(PIN IFBWFLAG)
The AM output provides either a detected AM AF or the
corresponding AM IF2 signal. The IF2 signal can be used
for AM stereo decoder processing. Soft mute function is
controlled by the I2C-bus in AM mono mode.
Flag output IBFW = 1 from pin IFBWFLAG indicates that
the IF2 bandwidth is reduced.
7.4.4
AM NOISE BLANKER
7.3.10 BANDWIDTH CONTROL MONITOR VOLTAGE
(PIN VIFBW
)
The detection point for the AM noise blanker is the output
stage of AM mixer 1, while blanking is realized at the
output of the mixer 2.
The actual bandwidth is indicated by a voltage at pin VIFBW
that is proportional, not linear, to the IF bandwidth.
Trigger sensitivity can be modified by adding an external
resistor at pin AMNBHOLD.
7.4
AM signal channel
7.4.1
AM TUNER INCLUDING MIXER 1 AND MIXER 2
7.5
FM and AM level detector
The AM tuner is realized in a double conversion technique
and is capable of selecting LW, MW and SW bands.
FM and AM level detectors provide the temperature
compensated output voltage. The starting points and
slopes of the level detector outputs are programmable via
the I2C-bus.
AM mixer 1 converts AM RF to IF1 of 10.7 MHz, while
AM mixer 2 converts IF1 of 10.7 MHz to IF2 of 450 kHz:
• LW = 144 to 288 kHz
• MW = 530 to 1710 kHz (US AM band)
• SW = 5.73 to 9.99 MHz (including the 31 m, 41 m and
49 m bands).
2004 Nov 12
10
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
TEA6848H
7.6
IF2 filter gain alignment
7.7
Frequency offset detector/alignment
The 4-bit filter gain alignment reduces the change in
IF filter gain spread when the bandwidth is changed in
dynamic mode from 155 kHz (maximum) to 25 kHz
(minimum).
A very strong undesired neighbouring signal causes offset
in the demodulator in case of weak desired input signal.
The frequency offset detector reduces the bandwidth of
the IF2 filter when the detected offset in the demodulator
is too large.
A frequency has to be chosen in the middle of
European/US FM band, Japan band or OIRT band (for
East Europe) and the IC has to be set into dynamic
bandwidth mode (IF2 bandwidth is 155 kHz).
There are four bits available for frequency offset detector
alignment. Every band has to be aligned separately.
Tuning has to be set to middle of the band, input signal
unmodulated, bit IFBW = 1 (alignment voltage will be
given to pin IFBWFLAG). The DC voltage at
Setting and clearing the FMBW bit continuously allows the
adjustment of the gain alignment to minimum change in
AM/FM DC level.
pin IFBWFLAG has to be aligned to the minimum value.
8
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 60134).
SYMBOL
VDDA1
PARAMETER
CONDITIONS
MIN.
−0.3
MAX.
+10
UNIT
analog supply voltage 1 for FM IF amplifier
analog supply voltage 2 for FM and AM RF
analog supply voltage 3 for tuning PLL
V
V
V
V
VDDA2
VDDA3
VDDA4
−0.3
−0.3
−0.3
+10
+10
+10
analog supply voltage 4 for voltage controlled
oscillator
VDDA5
analog supply voltage 5 for on-chip power supply
analog supply voltage 6 for on-chip power supply
digital supply voltage
−0.3
−0.3
−0.3
−0.3
+6.5
+10
+6.5
−
V
V
V
V
VDDA6
VDDD
∆VDD8.5-DD5
difference between any 8.5 V supply voltage and note 1
any 5 V supply voltage
Tstg
Tamb
Ves
storage temperature
ambient temperature
−55
+150
+85
°C
°C
V
−40
electrostatic handling voltage
note 2
note 3
−200
−2000
+200
+2000
V
Notes
1. To avoid damage and wrong operation it is necessary to keep all 8.5 V supply voltages at a higher level than any 5 V
supply voltage. This is also necessary during power-on and power-down sequences. Precautions have to be
provided in such a way that interference cannot pull down the 8.5 V supply below the 5 V supply.
2. Machine model (R = 0 Ω, C = 200 pF).
3. Human body model (R = 1.5 kΩ, C = 100 pF).
9
THERMAL CHARACTERISTICS
SYMBOL
Rth(j-a)
PARAMETER
CONDITIONS
VALUE
UNIT
thermal resistance from junction to ambient
thermal resistance from junction to case
in free air
54
9
K/W
K/W
Rth(j-c)
2004 Nov 12
11
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
TEA6848H
10 DC CHARACTERISTICS
VDDA(n) = 8.5 V; VDDA5 = 5 V; VDDD = 5 V; Tamb = 25 °C; tested in the circuit of Figs 10 and 11; unless otherwise
specified.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Supply voltage
VDDA(n)
VDDA5
VDDD
analog supply voltages 1 to 4 and 6
analog supply voltage 5
8
8.5
9
V
4.75
4.75
5
5
5.25
5.25
V
V
digital supply voltage
Supply current in FM mode
IDDD
digital supply current
Europe/US band
21
26
33
7.3
31
mA
mA
mA
Japan/East Europe band 26.5
5.5
39.5
8.8
IDDA1
analog supply current 1 for FM IF
amplifier
IDDA2
IDDA3
IDDA4
IDDA5
analog supply current 2 for FM RF
analog supply current 3 for tuning PLL
analog supply current 4 for VCO
4.2
3.2
5.2
5.2
4
6.2
4.8
7.8
−
mA
mA
mA
mA
mA
mA
6.5
3.8
7.4
27
analog supply current 5 for on-chip
power supply
Europe/US band
−
Japan/East Europe band
−
−
IDDA6
analog supply current 6 for on-chip
power supply
21.5
32.5
IMIX1OUT1
IMIX1OUT2
bias current of FM mixer output 1
bias current of FM mixer output 2
4.8
4.8
6
6
7.2
7.2
mA
mA
Supply current in AM mode
IDDD
digital supply current
22
27
32
mA
IDDA1
analog supply current 1 for
AM mixer 2
100
120
140
µA
IDDA2
IDDA3
IDDA4
IDDA5
analog supply current 2 for RF
1.4
1.8
5
1.8
2.2
6.5
11
2.2
2.6
8
mA
mA
mA
mA
analog supply current 3 for tuning PLL
analog supply current 4 for VCO
analog supply current 5 for on-chip
power supply
−
−
IDDA6
analog supply current 6 for on-chip
power supply
14
17.5
21
mA
IMIX1OUT1
IMIX1OUT2
bias current of AM mixer 1 output 1
bias current of AM mixer 1 output 2
4.8
4.8
3.6
3.6
6
7.2
7.2
5.4
5.4
mA
mA
mA
mA
6
IAMMIX2OUT1 bias current of AM mixer 2 output 1
IAMMIX2OUT2 bias current of AM mixer 2 output 2
4.5
4.5
On-chip power supply reference current generator: pin IREF
Vo(ref)
Ro
output reference voltage
output resistance
RIREF = 120 kΩ
RIREF = 120 kΩ
RIREF = 120 kΩ
4
4.25
10
−
4.5
−
V
−
kΩ
nA
Io(max)
maximum output current
−100
+100
2004 Nov 12
12
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
TEA6848H
11 AC CHARACTERISTICS
VDDA(n) = VMIX1OUT1 = VMIX1OUT2 = VAMMIX2OUT1 = VAMMIX2OUT2 = 8.5 V; VDDD = VDDA5 = 5 V; Tamb = 25 °C; tested in the
circuit of Figs 10 and 11; all AC values are given in RMS; unless otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX. UNIT
Voltage controlled oscillator
fosc
oscillator frequency
162.9
−
248.2
MHz
C/N
carrier-to-noise ratio
f
osc = 200 MHz; ∆f = 10 kHz
−
97
−
dBc
-----------
Hz
RR
fripple = 100 Hz;
VDDA4(ripple) = 100 mV (RMS);
fosc = 200 MHz
92
99
−
dB
∆fosc
ripple rejection
-----------
fosc
Crystal oscillator
fxtal
crystal frequency
−
−
20.5
112
−
−
MHz
C/N
carrier-to-noise ratio
fxtal = 20.5 MHz; ∆f = 10 kHz
dBc
-----------
Hz
CIRCUIT INPUTS: PINS XTAL1, XTALGND AND XTAL2
Vo(osc)(rms)
oscillator output voltage
(RMS value)
note 1
80
100
160
mV
VXTAL1, VXTAL2 DC bias voltage
1.7
2.1
2.5
V
Ri
real part of input
impedance
V
XTAL1 − VXTAL2 = 1 mV; note 1
−250
−
−
Ω
Ci
input capacitance
note 1
8
10
12
pF
Synthesizer
PROGRAMMABLE DIVIDER
Nprog
programmable divider ratio
512
−
32767
∆Nstep
programmable divider step
size
−
1
−
CHARGE PUMP: PIN CPOUT
Isink(cp1)l
low charge pump 1 sink
current
0.4 V < VCPOUT < 7.6 V;
−
−
−
300
−300
1
−
−
−
µA
µA
mA
data byte 3: bit 0 = 0, bit 1 = 1,
bit 2 = 1 for FM weather band;
fVCO > fref × divider ratio
Isource(cp1)l
low charge pump 1 source 0.4 V < VCPOUT < 7.6 V;
current
data byte 3: bit 0 = 0, bit 1 = 1,
bit 2 = 1 for FM weather band;
fVCO < fref × divider ratio
Isink(cp1)h
high charge pump 1 sink
current
0.4 V < VCPOUT < 7.6 V;
data byte 3: bit 0 = 1, bit 1 = 1,
bit 2 = 1; AM stereo mode;
VCO divider = 10 (LW and MW);
fVCO > fref × divider ratio
2004 Nov 12
13
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
TEA6848H
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
−1
MAX. UNIT
Isource(cp1)h
high charge pump 1 source 0.4 V < VCPOUT < 7.6 V;
−
−
mA
current
data byte 3: bit 0 = 1, bit 1 = 1,
bit 2 = 1; AM stereo mode;
VCO divider = 10 (LW and MW);
f
VCO < fref × divider ratio
Isink(cp2)
charge pump 2 sink current 0.3 V < VCPOUT < 7.1 V;
data byte 3: bit 0 = 0, bit 1 = 0,
−
−
130
−
−
µA
µA
bit 2 = 0; FM standard mode;
f
VCO > fref × divider ratio
Isource(cp2)
charge pump 2 source
current
0.3 V < VCPOUT < 7.1 V;
−130
data byte 3: bit 0 = 0, bit 1 = 0,
bit 2 = 0; FM standard mode;
fVCO < fref × divider ratio
CHARGE PUMP: PIN Vtune
Isink(cp3)
charge pump 3 sink current 0.4 V < Vtune < 7.6 V;
−
−
3
−
−
mA
mA
data byte 3: bit 0 = 0, bit 1 = 0,
bit 2 = 0; FM standard mode;
fVCO > fref × divider ratio
Isource(cp3)
charge pump 3 source
current
0.4 V < Vtune < 7.6 V;
data byte 3: bit 0 = 0, bit 1 = 0,
bit 2 = 0; FM standard mode;
−3
f
VCO < fref × divider ratio
Antenna Digital Auto Alignment (DAA)
DAA INPUT: PIN DAAIN
Ibias(cp)
charge pump buffer input
bias current
VDAAIN = 0.4 to 8 V
−10
−
−
+10
8.5
nA
V
Vi(cp)
charge pump buffer input
voltage
0
DAA OUTPUT: PIN DAAOUT; note 2
Vo(AM)
DAA output voltage in
AM mode
IDAAOUT < 100 µA
−
−
−
−
0.3
0.5
V
V
Vo(FM)
DAA output voltage in
FM mode
minimum value;
data byte 2 = 10000000;
VDAAIN = 0.5 V; VDAATD = 0.45 V
maximum value;
8
−
8.5
V
data byte 2 = 11111111;
VDAAIN = 4.7 V; VDAATD = 0.45 V
VDAAIN = 4 V; VDAATD = 0.45 V
data byte 2 = 10000000
data byte 2 = 11000000
VDAAIN = 2 V; VDAATD = 0.45 V
data byte 2 = 11010101
data byte 2 = 10101010
−
0.65
4
−
V
V
3.8
4.2
2.3
1.2
2.6
1.4
2.9
1.6
V
V
2004 Nov 12
14
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
TEA6848H
SYMBOL
Vo(n)
PARAMETER
CONDITIONS
MIN.
TYP.
MAX. UNIT
DAA output noise voltage
data byte 2 = 11000000;
FM mode; VDAAIN = 4 V;
−
30
100
µV
V
DAATD = 0.45 V;
B = 300 Hz to 22 kHz
∆Vo(T)
DAA output voltage
Tamb = −40 to +85 °C;
−8
−
+8
mV
variation with temperature data byte 2 = 11000000
∆Vo(step)
DAA step accuracy
n = 0 to 127; FM mode;
VDAAOUT = 0.5 to 8 V;
0.5VLSB VLSB
1.5VLSB mV
VDAAIN = 2 V; VDAATD = 0.45 V
∆Vo(sink)
∆Vo(source)
tst
DAA output variation
caused by sink current
VDAAIN = 4 V; IL = 50 µA
VDAAIN = 4 V; IL = −50 µA
−VLSB
−VLSB
−
−
+VLSB
+VLSB
DAA output variation
caused by source current
−
DAA output settling time
VDAAOUT = 0.2 to 8.25 V;
CL = 270 pF
20
65
30
µs
RR
data byte 2 = 10101011;
FM mode; VDAAIN = 4 V;
−
−
dB
VDAAOUT
ripple rejection
----------------------
VDDA3
V
DAATD = 0.45 V; fripple = 100 Hz;
VDDA3(ripple) = 100 mV (RMS)
CL
DAA output load
capacitance
−
−
270
pF
DAA TEMPERATURE COMPENSATION: PIN DAATD
Isource
compensation diode
source current
VDAATD = 0.2 to 1.2 V
−50
−40
−30
µA
TCsource
temperature coefficient of
compensation diode
source current
V
DAATD = 0.2 to 1.2 V;
−300
−
+300
10–6
-----------
K
Tamb = −40 to +85 °C
IF counter (FM IF2 or AM IF2 counter)
NIF
IF counter length for
AM and FM
−
−
8
−
bit
PINS FMMIX2IN AND FMMIX2DEC; note 3
Vsens(rms)
sensitivity voltage
(RMS value)
FM mode
30
100
µV
N
counter result (decimal)
period = 2 ms;
VFMMIX2IN-FMMIX2DEC = 100 µV
prescaler ratio = 10
prescaler ratio = 40
−
−
90
22
−
−
period = 20 ms;
VFMMIX2IN-FMMIX2DEC = 100 µV
prescaler ratio = 10
prescaler ratio = 40
−
−
132
225
−
−
2004 Nov 12
15
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
TEA6848H
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX. UNIT
PINS AMIF2IN AND AMIF2DEC; note 4
Vsens(rms)
N
sensitivity voltage
(RMS value)
AM mode; m = 0
−
−
−
30
70
−
µV
counter result (decimal)
period = 2 ms;
VAMIF2IN-AMIF2DEC = 200 µV
132
40
period = 20 ms;
−
VAMIF2IN-AMIF2DEC = 200 µV
Reference frequency for car signal processor IC TEA688x and TEF689x; note 5
REFERENCE FREQUENCY DIVIDER
Nref
crystal oscillator divider
ratio
−
−
272
−
−
fref
reference frequency
fxtal = 20.5 MHz
not loaded
75.368
kHz
mV
VOLTAGE GENERATOR: PIN FREF
Vo(p-p)
AC output voltage
60
90
−
(peak-to-peak value)
VO
DC output voltage
output resistance
3.2
−
3.4
−
3.7
50
−
V
Ro
kΩ
MΩ
RL(min)
minimum load resistance
for first I2C-bus address
1
−
Weather band flag: pin WBFLAG
Isource(max) maximum source current
Ri(shunt)
−
−
−5
−
−
mA
internal shunt resistance to
ground
50
kΩ
Vo(max)
Vo
maximum output voltage
for FM mode
measured with respect to
pin RFGND
0
4
−
−
0.2
5
V
V
output voltage for weather measured with respect to
band mode
pin RFGND
AM signal channel
AM RF AGC STAGE (PIN DIODE DRIVE)
Vi(p)
RF input voltage for
wideband AGC start level
(peak value)
m = 0.3; data byte 4: bit 5 = 0,
bit 6 = 0
−
−
−
−
150
275
400
525
−
−
−
−
mV
mV
mV
mV
m = 0.3; data byte 4: bit 5 = 1,
bit 6 = 0
m = 0.3; data byte 4: bit 5 = 0,
bit 6 = 1
m = 0.3; data byte 4: bit 5 = 1,
bit 6 = 1
AM IF AGC STAGE INPUT: PIN AMIF2IN
Vi(p)
IF2 input voltage
(peak value)
AGC start level
0.20
0.27
0.35
V
2004 Nov 12
16
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
TEA6848H
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX. UNIT
AM RF AGC CURRENT GENERATOR OUTPUT: PIN IAMAGC
Isink(max)
maximum AGC sink
current
Vo = 2.8 V
11
15
19
mA
Isink
Ro
AGC sink current
output resistance
FM mode
1
−
−
5
−
−
7
mA
MΩ
pF
Io = 1 µA
0.5
−
Co
AM AGC current generator
output capacitance
RF CASCODE AGC
Icas(off)
AM cascode off current
FM mode
−
−
100
nA
Pin VAMCASFB
Vcas(FB)
cascode feedback voltage VAMMIX1IN-AMMIX1DEC above
threshold; minimum gain
−
0.26
−
V
Icas(FB)
cascode feedback sense
current
0
−
1
µA
Pin VAMCAS
Vcas
cascode voltage
VAMMIX1IN-AMMIX1DEC below
threshold; maximum gain
−
5
−
−
V
Icas
cascode transistor base
current capability
100
−
µA
AM MIXER 1 (IF1 = 10.7 MHZ)
Mixer inputs: pins AMMIX1DEC and AMMIX1IN
Ri
input resistance
note 6
note 6
15
25
5
40
7.5
3.1
−
kΩ
pF
V
Ci
input capacitance
DC input voltage
maximum input voltage
2.5
2.3
500
VI
2.7
−
Vi(max)
1 dB compression point of
VMIX1OUT1-MIX1OUT2; m = 0
mV
Mixer outputs: pins MIX1OUT1 and MIX1OUT2
Ro
output resistance
note 7
note 7
100
−
−
−
7
−
kΩ
pF
V
Co
output capacitance
4
Vo(max)(p-p)
maximum output voltage
(peak-to-peak value)
12
15
Ibias
mixer bias current
AM mode
4.8
2.0
6
7.2
3.2
mA
Mixer
gm(conv)
conversion
transconductance
2.55
mA
--------
V
I
--M----I-X---1---O---U----T-
VMIX1IN
2004 Nov 12
17
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
TEA6848H
SYMBOL
gm(conv)(T)
PARAMETER
conversion
CONDITIONS
MIN.
TYP.
MAX. UNIT
−
−9 × 10−4
−
K−1
transconductance variation
with temperature
∆gm(conv)
--------------------------------
g
m(conv) × ∆T
IP3
3rd-order intermodulation
RL = 2.6 kΩ (AC load between
output pins); ∆f = 300 kHz
135
−
138
170
5.8
−
−
8
dBµV
dBµV
IP2
2nd-order intermodulation RL = 2.6 kΩ (AC load between
output pins)
Vi(n)(eq)
equivalent input noise
voltage
band limited noise;
Rgen = 750 Ω; RL = 2.6 kΩ
(AC load between output pins)
−
nV
-----------
Hz
F
noise figure of AM mixer 1
−
4.5
7.1
dB
AM MIXER 2 (IF2 = 450 kHz)
Mixer inputs: pins IFAMPIN and IFAMPDEC
Ri
input resistance
input capacitance
DC voltage
note 8
note 8
−
330
5
−
7
3
−
Ω
pF
V
Ci
−
VI
2.4
1.1
2.7
1.4
Vi(max)(p)
maximum input voltage
(peak value)
1 dB compression point of
VAMMIX2OUT1-AMMIX2OUT2
V
Mixer outputs: pins AMMIX2OUT1 and AMMIX2OUT2
Ro
output resistance
note 9
50
−
−
−
7
−
kΩ
pF
V
Co
output capacitance
note 9
4
Vo(max)(p-p)
maximum output voltage
(peak-to-peak value)
VDDA6 = 8.5 V
12
15
Ibias
mixer bias current
AM mode
3.6
1.3
4.5
1.6
5.4
1.9
mA
Mixer
gm(conv)
conversion
transconductance
mA
--------
V
IAMMIX2OUT
----------------------------
VIFAMPIN
gm(conv)(T)
conversion
−
−9 × 10−4
−
K−1
transconductance variation
with temperature
∆gm(conv)
--------------------------------
g
m(conv) × ∆T
IP3
3rd-order intermodulation
RL = 1.5 kΩ (AC load between
output pins); ∆f = 300 kHz
134
−
137
170
15
−
dBµV
dBµV
IP2
2nd-order intermodulation RL = 1.5 kΩ (AC load between
−
output pins)
Vi(n)(eq)
equivalent input noise
voltage
Rgen = 330 Ω; RL = 1.5 kΩ
(AC load between output pins)
−
22
nV
-----------
Hz
2004 Nov 12
18
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
TEA6848H
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX. UNIT
F
noise figure of AM mixer 2
mixer leakage current
−
−
16
19.5
10
dB
IL
FM mode
−
µA
AM IF2 AGC STAGE: PINS AMIF2IN AND AMIF2DEC; note 4
Vi
input voltage
audio attenuation α = −10 dB
data byte 4: bit 4 = 1; mute on
data byte 4: bit 4 = 0; mute off
input carrier voltage
−
−
−
1
25
6
40
10
30
−
µV
µV
µV
V
VAGC(start)
VAGC(stop)
VAGC(ctrl)
∆AGC
Ri
AGC start voltage
AGC stop voltage
AGC control voltage
AGC range
14
−
maximum input peak voltage
Vi = 1 mV
4.1
−
4.3
89
2
4.7
−
V
between start and stop of AGC
dB
kΩ
pF
input resistance
input capacitance
1.8
−
2.2
15
Ci
10
AM DETECTOR
Vsens(rms)
sensitivity voltage
(RMS value)
m = 0.3; fmod = 400 Hz;
BAF = 2.15 kHz; Rgen = 2 kΩ;
note 4
(S+N)/N = 26 dB
(S+N)/N = 46 dB
−
−
−
45
65
900
−
µV
µV
dB
600
60
(S+N)/N
THD
maximum signal plus
noise-to-noise ratio
m = 0.3; fmod = 400 Hz;
BAF = 2.15 kHz; Rgen = 2 kΩ
total harmonic distortion
BAF = 2.15 kHz; CAGC = 10 µF;
VAMIF2IN = 100 µV to 250 mV
(RMS)
m = 0.8; fmod = 400 Hz
−
−
−
−
−
0.5
1
%
m = 0.8; fmod = 100 Hz
1.25
1000
400
600
2.5
1500
600
900
%
tsw
tst
FM to AM switching time
AM AGC settling time
VAMIF2IN = 100 µV; CAGC = 10 µF
VAMIF2IN = 100 µV to 100 mV
VAMIF2IN = 100 mV to 100 µV
ms
ms
ms
Output: pin AMAFIF2
Vo(rms)
AM IF2 output voltage
(RMS value)
AM stereo; m = 0; data byte 3:
bit 0 = 1, bit 1 = 1, bit 2 = 1
minimum at VAMIF2IN = 14 µV 1.5
maximum at VAMIF2IN = 5 mV 130
3
4.5
mV
mV
mV
180
250
230
300
AM mono; m = 0.3; data byte 3: 200
bit 0 = 1, bit 1 = 0, bit 2 = 1;
fmod = 400 Hz;
VAMIF2IN = 100 µV to 500 mV
(RMS)
Ro
output resistance
data byte 3: bit 0 = 1, bit 1 = 1,
bit 2 = 1; AM stereo
−
−
−
−
500
500
Ω
Ω
data byte 3: bit 0 = 1, bit 1 = 0,
bit 2 = 1; AM mono
2004 Nov 12
19
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
TEA6848H
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX. UNIT
Co
ZL
output capacitance
data byte 3: bit 0 = 1, bit 1 = 0,
bit 2 = 1
−
5
7
−
−
−
−
pF
kΩ
kΩ
dB
dB
load impedance
ripple rejection
data byte 3: bit 0 = 1, bit 1 = 0,
bit 2 = 1; AM mono
100
10
−
−
data byte 3: bit 0 = 1, bit 1 = 1,
bit 2 = 1; AM stereo
−
RR
VDDA5(ripple) = 100 mV (RMS);
24
26
fripple = 100 Hz
VDDA6(ripple) = 100 mV (RMS);
fripple = 100 Hz
−
AM IF2 LEVEL DETECTOR OUTPUT: PIN Vlevel(AMFM); see Fig.4
Vlevel(AMFM)
DC output voltage
VAMIF2IN = 10 µV to 1 V
0
−
7
V
V
VAMIF2IN < 1 µV; standard setting 0.1
of level DAA
0.5
2.2
40
0.9
VAMIF2IN = 1.4 mV; standard
setting of level DAA
1.6
2.8
50
V
∆Vlevel(AMFM)
step size for adjustment of VAMIF2IN = 0 V; standard setting 30
mV
level starting point
of level slope
Vlevel(slope)
slope of level voltage
VAMIF2IN = 140 µV to 140 mV;
standard setting of level slope
650
45
800
950
mV
---------------
20 dB
∆Vstep
step size for adjustment of VAMIF2IN = 1.4 mV
level slope
60
75
mV
---------------
20 dB
Blevel(AMFM)
bandwidth of level output
voltage
VAMIF2IN = 15 mV; standard
setting of level DAA
200
300
−
kHz
Ro
output resistance
−
−
−
500
Ω
RR
VDDA6(ripple) = 100 mV (RMS);
fripple = 100 Hz
36
−
dB
Vlevel
ripple rejection
---------------
VDDA6
AM NOISE BLANKER; TEST SIGNAL AND TEST CIRCUIT; see Fig.5
Threshold: pin AMNBHOLD
VO
DC output voltage
suppression time
4.3
6
4.6
7.5
5.1
10
V
tsup
Vpulse = 200 mV (peak);
Vlevel(AMFM) < 1.8 V
µs
ftrigger
trigger sensitivity frequency Vpulse = 200 mV (peak);
Vleve(AMFM)l < 1.8 V
−
−
−
1000
−
Hz
Hz
Hz
Vpulse = 200 mV (peak);
Vlevel(AMFM) > 2.2 V
−
−
100
100
Vpulse = 20 mV (peak);
Vlevel(AMFM) < 1.8 V
Noise detector output: pin TRDSMUTE
Isink(AGC)
AM noise blanker AGC sink VTRDSMUTE = 3 V
current
35
50
65
µA
2004 Nov 12
20
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
TEA6848H
SYMBOL
VAGC
PARAMETER
CONDITIONS
MIN.
1.9
TYP.
2.2
MAX. UNIT
AM noise blanker AGC
voltage
AM mixer 1 input Vi = 0 V
2.5
V
FM signal channel
FM RF AGC (FM DISTANCE MODE; DATA BYTE 4: BIT 3 = 0)
Inputs: pins FMMIXIN1 and FMMIXIN2; note 10
Vi(RF)(rms)
RF input voltage for start of data byte 4: bit 5 = 1, bit 6 = 1
−
−
−
−
3
−
−
−
−
mV
mV
mV
mV
wideband AGC
(RMS value)
data byte 4: bit 5 = 0, bit 6 = 1
data byte 4: bit 5 = 1, bit 6 = 0
data byte 4: bit 5 = 0, bit 6 = 0
6
9
12
Pin TFMAGC
Rsource
VO(ref)
source resistance
4
5
6
kΩ
DC output reference
voltage
data byte 4: bit 5 = 0, bit 6 = 0;
4.1
4.6
5.1
V
V
FMMIXIN1-FMMIXIN2 = 0 V
PIN diode drive output: pin IFMAGC
Isink(AGC)(max)
maximum AGC sink
current
VIFMAGC = 2.5 V;
8
11.5
15
mA
mA
VTFMAGC = VO(ref) − 0.5 V;
data byte 4: bit 5 = 0, bit 6 = 0,
bit 7 = 0
Isource(AGC)(max) maximum AGC source
current
VIFMAGC = 2.5 V;
−15
−11.5
−8
VTFMAGC = VO(ref) + 0.5 V;
data byte 4: bit 5 = 0, bit 6 = 0,
bit 7 = 0
Isource(AGC)
AGC source current
AM mode
−15
−11.5
−0.5
−8
mA
mA
VIFMAGC = 2.5 V; data byte 4:
bit 3 = 1 (FM local)
−0.65
−0.35
Level voltage output: pin Vlevel(AMFM)
Vth
threshold voltage for
narrow-band AGC
data byte 4: bit 5 = 0, bit 6 = 0,
bit 7 = 1; keyed AGC
500
950
1400
mV
FM RF MIXER
Reference voltage: pin Vref(MIX)
Vref reference voltage
FM mode
AM mode
6.5
2.7
7.1
3.1
7.9
3.4
V
V
Inputs: pins FMMIXIN1 and FMMIXIN2; note 10
Vi(RF)(max) maximum RF input voltage 1 dB compression point of
70
100
2.6
−
mV
FM mixer output voltage
(peak-to-peak value)
Vi(n)(eq)
equivalent input noise
voltage
Rgen = 200 Ω; RL = 2.6 kΩ
−
3.1
nV
-----------
Hz
Ri
Ci
input resistance
1.4
2.8
5
4.2
7
kΩ
input capacitance
−
pF
2004 Nov 12
21
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
TEA6848H
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX. UNIT
Outputs: pins MIX1OUT1 and MIX1OUT2; note 7
Ro
output resistance
output capacitance
mixer bias current
100
−
−
kΩ
pF
mA
V
Co
2
3.5
6
5
Ibias
FM mode
4.8
3
7.2
−
Vo(max)(p-p)
maximum output voltage
(peak-to-peak value)
−
FM mixer
gm(conv)
conversion
transconductance
8.5
12.5
18
mA
--------
V
gm(conv)(T)
conversion
−
−1 × 10−3
−
K−1
transconductance variation
with temperature
F
noise figure
−
−
3
4.6
dB
Rgen(opt)
optimum generator
resistance
200
−
Ω
IP3
3rd-order intermodulation
image rejection ratio
VMIX1OUTwanted
113
25
116
30
−
−
dBµV
IRR
fRFwanted = 87.5 MHz;
fRFimage = 108.9 MHz
dB
--------------------------------------
VMIX1OUTimage
data byte 3 = X010X110;
fRFwanted = 162.475 MHz;
22
30
−
dB
f
RFimage = 183.875 MHz; weather
band mode; fref = 25 kHz
IF AMPLIFIER
G
gain
RL = 330 Ω; VIFAMPIN = 1 mV;
15
17
19
dB
note 8
F
noise figure
−
10
13
dB
IP3
3rd-order intermodulation
113
116
−
dBµV
Inputs: pins IFAMPIN and IFAMPDEC; note 8
Vi(max)(p)
maximum input voltage
(peak value)
1 dB compression point of
IF amplifier output voltage
(peak value)
200
−
−
mV
Vi(n)(eq)
equivalent input noise
voltage
Rgen = 330 Ω; RL = 330 Ω
−
8
10
nV
-----------
Hz
Ri
Ci
input resistance
270
330
5
390
7
Ω
input capacitance
−
pF
Output: pin IFAMPOUT
Vo(max)(p)
maximum output voltage
1.2
1.5
−
V
(peak value)
Ro
Co
output resistance
output capacitance
270
330
5
390
7
Ω
−
pF
2004 Nov 12
22
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
TEA6848H
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX. UNIT
Tunable filter
Bmax
maximum bandwidth
minimum bandwidth
data byte 4: bit 1 = 0, bit 0 = 0;
dynamic mode
−
−
−
−
−
−
160
−
−
−
−
−
−
kHz
kHz
kHz
kHz
kHz
kHz
Bmin
B13
data byte 4: bit 1 = 0, bit 0 = 0;
dynamic mode; VTACD = 4.2 V
25
13
60
90
130
bandwidth in weather band
mode
B60
bandwidth in narrow band data byte 4: bit 1 = 1, bit 0 = 1
mode
B90
bandwidth in mid band
mode
data byte 4: bit 1 = 1, bit 0 = 0
B130
bandwidth in wideband
mode
data byte 4: bit 1 = 0, bit 0 = 1
PIN VIFBW
Vo
monitor output voltage for
IF2 bandwidth
fixed bandwidth = narrow
fixed bandwidth = mid
fixed bandwidth = wide
−
−
−
−
1.35
0.94
0.55
5
−
−
−
−
V
V
V
Ro
output resistance
kΩ
Adjacent channel detector
MODULATION DETECTOR INPUT: PIN MODDET
Ri
Ci
input resistance
−
−
42.4
5
−
kΩ
input capacitance
7
pF
MODULATION DETECTOR OUTPUT: PIN MODETOUT
Ro
output resistance
−
33.9
−
kΩ
DETECTOR ADJUST: PIN ACDTHRES
Ri
Ci
input resistance
6.2
7.8
5
9.4
7
kΩ
input capacitance
−
pF
FM demodulator and level detector; see Figs 6 and 7
FM DEMODULATOR
FM mixer 2 input: pins FMMIX2IN and FMMIX2DEC; note 3
Vstart(lim)(rms)
start of limiting of RDS
MPX output voltage
(RMS value)
αAF = −3 dB
−
4.5
−
µV
Vo(sens)(rms)
sensitivity for RDS MPX
∆f = 22.5 kHz; fmod = 1 kHz;
output voltage (RMS value) de-emphasis = 50 µs
Rgen = 165 Ω;
(S+N)/N = 26 dB
−
−
11
90
−
−
µV
µV
(S+N)/N = 46 dB
2004 Nov 12
23
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
TEA6848H
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX. UNIT
RDS MPX output: pin RDSMPX
(S+N)/N
THD
maximum signal plus
noise-to-noise ratio of RDS de-emphasis = 50 µs;
MPX output voltage
∆f = 22.5 kHz; fmod = 1 kHz;
65
68
−
dB
%
VFMMIX2IN = 10 mV
total harmonic distortion of ∆f = 75 kHz; fmod = 1 kHz;
−
0.35
0.7
RDS MPX output voltage
de-emphasis = 50 µs;
VFMMIX2IN = 200 µV to 800 mV
αAM
AM suppression
Vo(rms)
FM: ∆f = 22.5 kHz; fmod = 1 kHz;
AM: m = 0.3; fmod = 1 kHz;
de-emphasis = 50 µs
--------------------------
Vo(AM)(rms)
VFMMIX2IN = 30 to 70 µV
VFMMIX2IN = 70 to 500 µV
20
30
30
40
45
40
−
−
−
−
dB
dB
dB
dB
VFMMIX2IN = 500 µV to 300 mV 35
VFMMIX2IN = 300 mV to 1 V
VFMMIX2IN = 20 µV to 1 V; note 3
∆f = 5 kHz; fmod = 57 kHz
30
Vo(rms)
RDS MPX output voltage
(RMS value)
45
50
230
−
55
255
−
mV
mV
µA
∆f = 22.5 kHz; fmod = 1 kHz
205
100
Io(max)(rms)
maximum RDS MPX
output current (RMS value)
Ro
RL
CL
B
output resistance
load resistance
load capacitance
−
−
500
−
Ω
20
−
−
kΩ
pF
kHz
−
50
−
bandwidth RDS MPX
output
CL = 0; RL > 20 kΩ
200
300
PSRR
power supply ripple
rejection
fripple = 100 Hz to 20 kHz
−
40
−
dB
FM MPX output: pin FMMPX; note 3
(S+N)/N
maximum signal plus
noise-to-noise ratio of
FM MPX output voltage
∆f = 22.5 kHz; fmod = 1 kHz;
de-emphasis = 50 µs;
VFMMIX2IN = 10 mV
65
68
−
dB
%
THD
total harmonic distortion of ∆f = 75 kHz; fmod = 1 kHz;
−
0.1
0.3
FM MPX output voltage
de-emphasis = 50 µs;
VFMMIX2IN = 200 µV to 800 mV
αAM
AM suppression
Vo(rms)
FM: ∆f = 22.5 kHz; fmod = 1 kHz;
AM: m = 0.3; fmod = 1 kHz;
de-emphasis = 50 µs
--------------------------
Vo(AM)(rms)
VFMMIX2IN = 30 to 70 µV
VFMMIX2IN = 70 to 500 µV
20
30
30
40
45
40
−
−
−
−
dB
dB
dB
dB
VFMMIX2IN = 500 µV to 300 mV 35
VFMMIX2IN = 300 mV to 1 V 30
2004 Nov 12
24
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
TEA6848H
SYMBOL
Vo(rms)
PARAMETER
CONDITIONS
MIN.
205
TYP.
230
MAX. UNIT
FM MPX output voltage
(RMS value)
∆f = 22.5 kHz; fmod = 1 kHz;
VFMMIX2IN = 20 µV to 1 V
255
mV
∆f = 1.5 kHz; fmod = 1 kHz;
150
100
230
310
mV
V
FMMIX2IN = 20 µV to 1 V;
weather band mode
Io(max)
maximum FM MPX output
current
−
−
µA
B
bandwidth FM MPX output CL = 0; RL > 20 kΩ
200
−
−
−
kHz
dB
PSRR
power supply ripple
rejection
fripple = 100 Hz to 20 kHz
−
40
RL
Ro
CL
tsw
load resistance
20
−
−
−
kΩ
Ω
output resistance
load capacitance
AM to FM switching time
−
500
50
−
−
pF
ms
VFMMIX2IN = 100 µV
−
100
150
MPX mute
αmute
muting depth
data byte 2: bit 7 = 1 (mute)
60
80
−
dB
Voffset(DC)
DC offset during RDS
update mute pin FMMPX
∆V = Vmuted − Vnotmuted
−30
−
+30
mV
RDS update: pin TRDSMUTE
VTRDSMUTE
voltage at pin TRDSMUTE no mute
5.2
0.7
24
5.7
1.2
32
6.2
1.7
38
V
mute
V
Idch
Ich
discharge current
charge current
Vo = 3 V; data byte 2: bit 7 = 1
Vo = 3 V; data byte 2: bit 7 = 0
µA
µA
−38
−32
−24
FM IF LEVEL DETECTOR OUTPUT: PIN Vlevel(AMFM); note 3
Vlevel(AMFM)
DC output voltage
VFMMIX2IN = 10 µV to 1 V
0
−
7
V
V
VFMMIX2IN < 1 µV; standard
0.1
0.35
0.9
setting of level DAA
VFMMIX2IN = 1 mV; standard
setting of level DAA
1
1.5
40
2.1
50
V
∆Vlevel(AMFM)
step size of starting point
adjustment
data byte 5: bit 2 = 1, bit 1 = 0,
bit 0 = 0
30
650
mV
Vlevel(slope)
slope of level voltage
VFMMIX2IN = 1 to 300 mV;
standard setting of level slope
800
950
mV
---------------
20 dB
∆Vlevel(AMFM)
---------------------------------
∆VFMMIX2IN
∆Vstep
step size of slope
adjustment
VFMMIX2IN = 1 mV
45
60
75
mV
---------------
20 dB
Blevel(AMFM)
bandwidth of level output
voltage
VFMMIX2IN = 10 mV; standard
setting of level DAA
200
300
−
kHz
Isource
Isink
Ro
output source current
output sink current
output resistance
−
−
−
−
−300
−
µA
µA
Ω
50
−
500
2004 Nov 12
25
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
TEA6848H
SYMBOL
RR
PARAMETER
ripple rejection
CONDITIONS
ripple = 100 Hz;
MIN.
TYP.
MAX. UNIT
f
−
40
−
dB
VDDA6(ripple) = 100 mV (RMS)
PIN Vlevel(ACD)
Ro
output resistance
6.4
1.0
8
9.6
kΩ
RDS update
Output: pin AFHOLD
Isink(max)
maximum sink current
after first bus transmission with
data byte 0: bit 7 = 1 (start of
RDS update); Vo = 0.5 V
1.2
1.2
1.4
1.4
mA
mA
Output: pin AFSAMPLE
Isink(max)
maximum sink current
no RDS update in progress;
Vo = 0.5 V
1.0
Notes
1. Measured between pins XTAL1 and XTAL2.
n
128
2. DAA conversion gain formula: VDAAOUT
n = 0 to 127.
=
2 × 0.75 ×
+ 0.125 × (VDAAIN + VDAATD) – VDAATD ; where
---------
3. Input parameters of FM mixer 2 measured between pins FMMIX2IN and FMMIX2DEC.
4. Input parameters of AM IF2 measured between pins AMIF2IN and AMIF2DEC.
5. Reference frequency pin FREF: Rext = 68 kΩ connected to ground activates the 2nd I2C-bus address.
6. Input parameters of AM mixer 1 measured between pins AMMIX1DEC and AMMIX1IN.
7. Output parameters of FM mixer and AM mixer 1 measured between pins MIX1OUT1 and MIX1OUT2.
8. Input parameters of AM mixer 2 measured between pins IFAMPIN and IFAMPDEC.
9. Output parameters of AM mixer 2 measured between pins AMMIX2OUT1 and AMMIX2OUT2.
10. Input parameters of FM mixer measured between pins FMMIXIN1 and FMMIXIN2.
2004 Nov 12
26
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
TEA6848H
MHC438
10
8
V
level(AMFM)
V
AMAFIF2
(V)
(dB)
(1)
(2)
0
7
THD
(%)
6
−10
−20
−30
5
4
3
2
(3)
(4)
−40
−50
−60
−70
(5)
(6)
1
0
−3
−2
−1
2
3
10
10
10
1
10
10
10
V
(mV)
AMIF2IN
(1) AF: f = 450 kHz; m = 0.3; f
IF
(2) AF: f = 450 kHz; m = 0.3; f
IF
= 1 kHz; soft mute off.
= 1 kHz; soft mute on.
mod
mod
(3) Noise: unweighted B = 2.15 kHz; soft mute off.
(4) Noise: unweighted B = 2.15 kHz; soft mute on.
(5) Level detector output voltage, default setting.
(6) THD: m = 0.8.
Fig.3 AM detector and level output.
2004 Nov 12
27
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
TEA6848H
MHC439
6
V
level(AMFM)
(V)
5
4
(1)
3
(2)
2
(3)
1
0
−3
−2
−1
2
3
10
10
10
10
10
1
10
V
(mV)
AMIF2IN
(1) Level DAA setting byte 5 = FFH.
(2) Level DAA setting byte 5 = 84H (standard setting).
(3) Level DAA setting byte 5 = 00H.
Fig.4 AM level voltage.
T
70
71
73
rep
V
level(AMFM)
XTAL2
V
pulse
TEA6848H
V
1 kΩ
1 kΩ
77
78
test signal
8.5 V
18 19
14
oscilloscope,
counter
4.7 nF
50 Ω
MHC440
100 Ω
pulse
100 Ω
V
IFAMPIN
V
8.5 V
Test signal: Trep = 2 ms, tr < 50 ns, tf < 50 ns and duty factor 50%.
VIFAMPIN = 4 V and VXTAL2 = 3 V.
Fig.5 Test circuit for AM noise blanker.
28
2004 Nov 12
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
TEA6848H
MHC441
6
V
level(AMFM)
(V)
5
(1)
(2)
4
3
2
1
0
(3)
−3
−2
−1
2
3
10
10
10
1
10
10
10
V
(mV)
FMMIX2IN
(1) Level DAA setting byte 5 = FFH.
(2) Level DAA setting byte 5 = 84H (standard setting).
(3) Level DAA setting byte 5 = 00H.
Fig.6 FM level voltage.
2004 Nov 12
29
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
TEA6848H
MHC442
10
9
V
V
FMMPX;
V
level(AMFM)
(V)
RDSMPX
(1)
8
THD
0
(dB)
(%)
7
−10
−20
−30
−40
−50
−60
−70
−80
6
5
4
3
2
(2)
(3)
(4)
(5)
1
0
−3
−2
−1
2
3
10
10
10
1
10
10
10
V
(mV)
FMMIX2IN
(1) Output voltage for FMMPX and RDSMPX: f = 10.7 MHz; ∆f = 22.5 kHz; f
IF
= 1 kHz.
mod
(2) Noise: unweighted B = 250 Hz to 15 kHz with de-emphasis 50 µs for FMMPX.
(3) Noise: unweighted B = 250 Hz to 15 kHz with de-emphasis 50 µs for RDSMPX.
(4) THD for FMMPX and RDSMPX.
(5) Level for standard setting of level DAA, byte 5 = 84H.
Fig.7 (S+N)/N, THD and level voltage for FM mode as a function of FM demodulator input voltage.
2004 Nov 12
30
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
TEA6848H
12 I2C-BUS PROTOCOL
12.1.2 I2C-BUS PULL-UP RESISTORS
12.1 I2C-bus specification
When the IC is used together with the TEA688x or
TEF689x and both SCL and SDA lines are connected via
the I2C-bus to the TEA688x or TEF689x, the pull-up
resistors of the tuner IC should be connected to the digital
supply voltage of the TEA688x or TEF689x. Otherwise an
I2C-bus pull-down can occur switching off the tuner IC
supply when the I2C-bus buffer interface of the TEA688x
or TEF689x is enabled for data transfer to the tuner IC.
Information about the I2C-bus can be found in the brochure
“The I2C-bus and how to use it” (order number
9398 393 40011).
The standard I2C-bus specification is expanded by the
following definitions.
IC addresses:
• 1st IC address C2H: 1100001 R/W
• 2nd IC address C0H: 1100000 R/W.
12.1.3 FREQUENCY SETTING
For new frequency setting, in both AM and FM mode, the
programmable divider is enabled by setting bit MUTE = 1.
To select an FM frequency, two I2C-bus transmissions are
necessary:
Structure of the I2C-bus logic: slave transceiver with auto
increment.
Subaddresses are not used.
• First: bit MUTE = 1
A second I2C-bus address can be selected by connecting
pin FREF via a 68 kΩ resistor to GND.
• Second: bit MUTE = 0.
12.1.4 DEFAULT SETTINGS
12.1.1 DATA TRANSFER
No default settings at power-on reset. One I2C-bus
transmission is required to program the IC.
Data sequence: address, byte 0, byte 1, byte 2, byte 3,
byte 4, byte 5, byte 6, and byte 7. The data transfer has to
be in this order. The LSB = 0 indicates a WRITE operation
to the TEA6848H.
12.1.5 TIMING REQUIREMENTS
Table 1 Timing requirements of I2C-bus software
Bit 7 of each byte is considered the MSB and has to be
transferred as the first bit of the byte.
FUNCTION
TIMING
Switching from 400 ms (10 µF at pin CAGC)
FM to AM
The data becomes valid at the output of the internal
latches with the acknowledge of each byte. A STOP
condition after any byte can shorten transmission times.
Switching from 100 ms (10 µF at pin CAGC; wideband
AM to FM
position has to be set for at least
100 ms to activate speed-up circuitry)
When writing to the transceiver by using the STOP
condition before completion of the whole transfer:
Start-up in FM wideband position has to be set for at
• The remaining bytes will contain the old information
mode
least 100 ms to activate speed-up
circuitry
• If the transfer of a byte is not completed, this byte is lost
and the previous information is available.
Switching to
500 µs (18 nF at pin TACD; wideband
dynamic mode position has to be set for at least
500 µs to activate clamping circuitry at
pin TACD)
2004 Nov 12
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Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
TEA6848H
12.2 I2C-bus protocol
12.2.1 DATA TRANSFER MODE AND IC ADDRESS
Table 2 Write mode
S(1)
address (write)
A(2)
data byte(s)
A(2)
P(3)
Notes
1. S = START condition.
2. A = acknowledge.
3. P = STOP condition.
Table 3 Read mode
S(1)
address (read)
A(2)
data byte 1
Notes
1. S = START condition.
2. A = acknowledge.
Table 4 IC address byte
IC ADDRESS
MODE
1
1
0
0
0
0
0/1(1)
R/W(2)
Notes
1. Defined by address pin FREF:
a) 1 = 1st IC address
b) 0 = 2nd IC address.
2. Read or write mode:
a) 0 = write operation to TEA6848H
b) 1 = read operation from TEA6848H.
12.2.2 WRITE MODE: DATA BYTE 0
Table 5 Format of data byte 0
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
AF
PLL14
PLL13
PLL12
PLL11
PLL10
PLL9
PLL8
Table 6 Description of data byte 0 bits
BIT
SYMBOL
DESCRIPTION
7
AF
Alternative frequency. If AF = 0, then normal operation. If AF = 1, then AF (RDS)
update mode.
6 to 0
PLL[14:8]
Setting of programmable counter of synthesizer PLL. Upper byte of PLL divider
word.
2004 Nov 12
32
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
TEA6848H
12.2.3 WRITE MODE: DATA BYTE 1
Table 7 Format of data byte 1
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
PLL1
BIT 0
PLL7
PLL6
PLL5
PLL4
PLL3
PLL2
PLL0
Table 8 Description of data byte 1 bits
BIT
SYMBOL
DESCRIPTION
7 to 0
PLL[7:0]
Setting of programmable counter of synthesizer PLL. Lower byte of PLL divider
word.
12.2.4 WRITE MODE: DATA BYTE 2
Table 9 Format of data byte 2
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
MUTE
DAA6
DAA5
DAA4
DAA3
DAA2
DAA1
DAA0
Table 10 Description of data byte 2 bits
BIT
SYMBOL
DESCRIPTION
7
MUTE
FM audio mute. If MUTE = 0, then FM audio not muted. If MUTE = 1, then FM audio
muted; writing to programmable divider and antenna DAA enabled.
6 to 0
DAA[6:0]
Setting of antenna digital auto alignment.
12.2.5 WRITE MODE: DATA BYTE 3
Table 11 Format of data byte 3
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
IFMT
FREF2
FREF1
FREF0
IFPR
BND1
BND0
AMFM
Table 12 Description of data byte 3 bits
BIT
SYMBOL
DESCRIPTION
7
IFMT
IF measuring time. If IFMT = 0, then IF measuring time is 20 ms. If IFMT = 1, then
IF measuring time is 2 ms.
6 to 4
FREF[2:0] Reference frequency for synthesizer. These 3 bits determine the reference
frequency, see Table 13.
3
2 and 1
0
IFPR
BND[1:0]
AMFM
IF counter prescaler ratio. If IFPR = 0, then IF prescaler ratio is 40. If IFPR = 1, then
IF prescaler ratio is 10.
Band switch. These 2 bits select in FM mode band and local or distant, see Table 14; in
AM mode band and AM stereo, see Table 15.
AM or FM switch. If AMFM = 0, then FM mode. If AMFM = 1, then AM mode.
2004 Nov 12
33
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
TEA6848H
Table 13 Reference frequency setting
FREF2
FREF1
FREF0
fref (kHz)
0
1
0
1
0
1
0
1
0
0
1
1
0
0
1
1
0
0
0
0
1
1
1
1
100
50
25
20
10
10
10
10
Table 14 FM mode
BND1
BND0
FREQUENCY BAND
FM standard
VCO DIVIDER
CHARGE PUMP CURRENT
130 µA + 3 mA
130 µA + 3 mA
1 mA
0
0
1
1
0
1
0
1
2
3
3
1
FM Japan
FM East Europe
FM weather
300 µA
Table 15 AM mode
BND1
BND0
FREQUENCY BAND
AM SW mono
VCO DIVIDER
CHARGE PUMP CURRENT
0
0
1
1
0
1
0
1
10
10
20
20
1 mA
1 mA
1 mA
1 mA
AM SW stereo
AM LW/MW mono
AM LW/MW stereo
12.2.6 WRITE MODE: DATA BYTE 4
Table 16 Format of data byte 4
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
LODX
BIT 2
BIT 1
BIT 0
KAGC
AGC1
AGC0
AMSM/FMBW
FLAG
BW1
BW0
2004 Nov 12
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Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
TEA6848H
Table 17 Description of data byte 4 bits
BIT
SYMBOL
DESCRIPTION
7
KAGC
Keyed FM AGC. If KAGC = 0, then keyed FM AGC is off. If KAGC = 1, then keyed
FM AGC is on.
6 and 5
AGC[1:0]
Wideband AGC. These 2 bits set the start value of wideband AGC. For AM,
see Table 18 and for FM, see Table 19.
4
AMSM/FMBW AM soft mute or FM bandwidth. AM mode: if AMSM/FMBW = 0, then AM soft mute
is off; if AMSM/FMBW = 1, then AM soft mute is on. FM mode: see Table 20.
3
2
LODX
FLAG
Local or distance. If LODX = 0, then distance mode is on. If LODX = 1, then local
mode is on.
Software programmable flag. If FLAG = 0, then flag output pin SWFLAG is HIGH.
If FLAG = 1, then flag output pin SWFLAG is LOW.
1 and 0
BW[1:0]
FM IF2 bandwidth setting. See Table 20.
Table 18 Setting of wideband AGC for AM (m = 0.3)
AM MIXER 1 INPUT VOLTAGE (PEAK VALUE)
(mV)
AGC1
AGC0
0
0
1
1
0
1
0
1
150
275
400
525
Table 19 Setting of wideband AGC for FM
FM RF MIXER INPUT VOLTAGE (RMS VALUE)
(mV)
AGC1
AGC0
1
1
0
0
1
0
1
0
3
6
9
12
Table 20 FM IF2 bandwidth setting
FMBW
BW1
BW0
FM IF2 BANDWIDTH B−3 dB
0
0
0
0
1
0
0
1
1
0
0
1
0
1
0
dynamic mode
130 kHz fixed
90 kHz fixed
60 kHz fixed
25 kHz frequency offset alignment mode; bandwidth flag output
switched to frequency offset detector alignment voltage
2004 Nov 12
35
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
TEA6848H
12.2.7 WRITE MODE: DATA BYTE 5
Table 21 Format of data byte 5
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
LSL1
BIT 0
LST4
LST3
LST2
LST1
LST0
LSL2
LSL0
Table 22 Description of data byte 5 bits
BIT
SYMBOL
DESCRIPTION
7 to 3
LST[4:0]
Setting of level DAA starting point. These 5 bits determine the offset of the level
detector output voltage.
2 to 0
LSL[2:0]
Setting of level DAA slope. These 3 bits determine the steepness of the level detector
output voltage.
Table 23 Standard setting of data byte 5 bits
SETTING OF LEVEL DAA STARTING POINT
SETTING OF LEVEL DAA SLOPE
LST4
1
LST3
0
LST2
0
LST1
0
LST0
0
LSL2
1
LSL1
0
LSL0
0
12.2.8 WRITE MODE: DATA BYTE 6
Table 24 Format of data byte 6
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
TE
CF6
CF5
CF4
CF3
CF2
CF1
CF0
Table 25 Description of data byte 6 bits
BIT
SYMBOL
DESCRIPTION
7
TE
Threshold extension. If TE = 0, then threshold extension is off. If TE = 1, then
threshold extension is on.
6 to 0
CF[6:0]
Setting of FM IF2 centre frequency DAA. The content of CF6 to CF0 determines the
centre frequency of the 450 kHz filter.
12.2.9 WRITE MODE: DATA BYTE 7
Table 26 Format of data byte 7
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
FOF3
FOF2
FOF1
FOF0
FGN3
FGN2
FGN1
FGN0
Table 27 Description of data byte 7 bits
BIT
SYMBOL
DESCRIPTION
7 to 4
3 to 0
FOF[3:0]
FGN[3:0]
Frequency offset gain alignment.
IF2 filter gain alignment.
2004 Nov 12
36
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
TEA6848H
12.2.10 READ MODE: DATA BYTE 0
Table 28 Format of 1st data byte
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
IFC1
BIT 0
IFC7
IFC6
IFC5
IFC4
IFC3
IFC2
IFC0
Table 29 Description of data byte 0 bits
BIT
SYMBOL
DESCRIPTION
7 to 0
IFC[7:0]
IF counter result. These bits contain the least significant eight bits of the IF counter
result.
13 TEST AND APPLICATION INFORMATION
Table 30 List of components for test and application circuits (Figs 8, 9, 10 and 11)
SYMBOL
PARAMETER
capacitor for VCO tuning
10.7 MHz IF coil
450 kHz IF coil
TYPE
MANUFACTURER
C1
L1
L2
L3
L4
L5
L6
L7
L8
L9
R4
−
270 pF; type NP0
−
P7 PSG P826RC 5134N=S TOKO
P7PSGAE-5078D=S
E543SNAS-02010
611SNS-1066Y
TOKO
oscillator coil
TOKO
FM image rejection
FM input transformer
FM antenna coil
TOKO
369INS-3076X
TOKO
LQN1HR50; 215 nH
LQN1HR21; 500 nH
wire 10 mm/printed coil
388BN-1211Z
MURATA
MURATA
−
PIN diode bias
connection image reject
AM input
TOKO
resistor for stabilizer
crystal 20.5 MHz
3.3 kΩ; RC12G
BC Components
NDK
LN-G102-587
2004 Nov 12
37
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
TEA6848H
antenna
A
C1
V
4.7 kΩ
DDD
22 Ω
tune
V
10 kΩ
+
47
µF
1
nF
f
ref
PLL
L3
BB156
2.2 kΩ
3.3
nF
22
Ω
3.9
nF
1.2 kΩ
DGND
47
2.2 MΩ
2.7
pF
1.8
pF
22
nF
100 nF
100 nF
41
50
42 43
44
45 46
48 49
51
40
BB814
VCO
TUNING SYSTEM
L4
I2C-bus
39 ANTENNA
DAA
L8
BAS16
22 kΩ
38
37
1
nF
AM
+
1 µF
1 µF
TEA6848H
330
Ω
I2C-bus
10
µF
2.2
kΩ
B
22
Ω
FM
36
35
AGC
1
nF
1
nF
I2C-bus WB/JAPAN/OIRT
C
D
LEVEL
BA595
34
33
WB FLAG
4:6
L7
÷1/ ÷2/
÷3
500 nH
12
pF
×
E
F
32
31
18 pF
L6
6.8 pF
L5
FM
1
pF
215
nH
90°
I/Q MIXER 1
30
6.8
µH
RFGND
22 nF
270 Ω
G
H
29
×
FM
MIXER 2
AM-NOISE
DETECTOR
90°
5 V
100 nF
BAQ806
22 Ω
28
27
100 kΩ
1.8 MΩ
22 µF
26
25
24
I2C-bus
LEVEL
PEAK/
AVERAGE
220 nF
AM
÷2
I
AGC
820
µH
150
pF
560
Ω
×
AM
MIXER 2
÷10/
÷20
BLANK
PULSE
220
nF
56
µH
I2C-bus
BC847C
220
nF
2.2 nF
23
22
21
J
K
L
×
AM
MIXER 1
270
pF
470
µH
100 nF
14
13
11 10 9 8 7
220
17
12
20
19
18
16
15
22 nF
6
5
100
nF
22
nF
nF
10 nF
L9
1 nF
BF862
22
nF
22 nF
10 nF
BAV99
SFE 10.7
MS3
2.2
MΩ
L1
22
Ω
SW CONTROL
FLAG
M
N
SFE 10.7
MS3
22
Ω
10
kΩ
22 nF
22
Ω
MHC443
For list of components see Table 30.
Fig.8 Application diagram (continued in Fig.9).
38
2004 Nov 12
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
TEA6848H
8.5 V
A
3.3 µH
RDS/
MPX
FM
MPX
5 V
3.3 µH
12 kΩ
AM
AF
HOLD
AUDIO/IF
+
AF
47
µF
200
nF
100
nF
1
nF
SAMPLE
6.8
nF
220 nF
V
DDA5
59
V
DDA6
52 53
RDS
54
57
58
60
61
55
56
+
100
nF
POWER
SUPPLY
AMPLIFIER
x1/ x15
47
µF
WB
UPDATE
62
63
64
IFBWFLAG
SDA
AM STEREO
I2C-BUS
RDS
MUTE
MUX
SCL
B
IF
COUNT
AM
DEMOD
C
D
FM
AM
65
VIFBW
E
F
BUFFER
MPXOUT
IF2GND
66
67
8.2 nF
390 Ω
270 pF
G
H
FM
DEMOD
IF
FILTER
BANDWIDTH
CONTROL
33 nF
68
8.2 nF
69
70
LEVEL
V
level(AMFM)
71
72
73
74
20.5 MHz
CRYSTAL
20.5
MHz
I
OSCILLATOR
33 nF
10 kΩ
22 nF
820 Ω
120 kΩ
I2C-bus
LEVEL
DAA
V
75
STABI
DDA5
5 V
I2C-bus
TEA6848H
76
J
77
78
220 nF
K
L
79
80
10 µF
4
3
2
1
R4
3.3 kΩ
47
nF
22
nF
47 nF
47 nF
L2
M
N
SFR450H
22 nF
22 Ω
8.5 V
MHC444
Fig.9 Application diagram (continued from Fig.8).
39
2004 Nov 12
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
TEA6848H
f
ref
FM RF WB
input FLAG
PLL
5 V
analog
antenna
input
A
100 nF
68 kΩ
100 kΩ
relay 3
B
270 pF
C1
relay 1
10 kΩ
V
22 Ω
tune
4.7 kΩ
+
4.7
kΩ
100
nF
47
µF
1
nF
47 Ω
2.2 MΩ
BB156
L3
3.3
nF
2.2 kΩ
1.2 kΩ
22 Ω
3.9 nF
0 Ω
DGND
relay 1
22
nF
100 nF
40
2.7
pF
1.8
pF
relay 2
100 nF
45 46
41
50
42 43
44
47
48 49
51
L4
BB814
VCO
TUNING SYSTEM
2
I
C-bus
39 ANTENNA
DAA
BAS16
22 kΩ
L8
38
37
AM
1 µF
TEA6848H
2
I
C-bus
1
nF
+
10
µF
C
330
Ω
2.2
kΩ
22
Ω
FM
AGC
36
2
LEVEL
1 µF
I
C-bus WB/JAPAN/OIRT
D
E
35
1
nF
BA595
6.8 pF
1 nF
34
33
WB FLAG
L5
L7
÷1/ ÷2/
÷3
90°
×
F
32
31
500 nH
1 pF
FM
18 pF
L6
12
pF
215
nH
I/Q MIXER 1
G
4:6
RFGND
30
270 Ω
H
I
29
×
AM-NOISE
DETECTOR
90°
FM
22 nF
100 nF
BAQ806
MIXER 2
6.8 µH
22 Ω
28
27
22 µF
26
2
I
C-bus
220 nF
PEAK/
AVERAGE
AM
25
24
÷2
J
AGC
LEVEL
220
nF
150 pF
820
µH
560
Ω
10
kΩ
×
AM
MIXER 2
÷10/
÷20
BLANK
PULSE
100
nF
56 µH
2.2 nF
2
C-bus
I
BC847C
220
nF
K
L
23
470
µH
×
AM
MIXER 1
270
pF
22
21
M
14
13 12 11 10
22
9
8 7
17
20
19
18
16
15
6
5
1.8 MΩ
47 Ω
SW
CONTROL
FLAG
Q
I
100
nF
22
nF
22
nF
22
nF
nF
BAV99
BF862
220 nF
N
1 nF
L1
22 Ω
10 nF
10 nF
22
Ω
IF1GND
22
nF
2.2 MΩ
22 Ω
L9
SFE10.7
MS3
SFE 10.7
MS3
10 kΩ
100 nF
O
100 nF
100 nF
100 nF
100 nF
68 kΩ
68 kΩ
304 Ω
304 Ω
22 Ω
330
Ω
330
Ω
52
Ω
52
Ω
2 Ω
2 Ω
VCC1 8.5 V
I-centre
frequency
Q
I
AM RF
input
IF
output
IF
input
FMIF1
output
FMIF2
input
test mode
input
filter test
output mode
MHC445
For list of components see Table 30.
Fig.10 Test circuit (continued in Fig.11).
40
2004 Nov 12
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
TEA6848H
3.3 µH
100 nF
+
+
AF
SAMPLE
AF
HOLD
AM
AUDIO/IF
RDS/
MPX
FM
MPX
47 µF
A
3.3 µH
100 nF
100
nF
100
nF
100
nF
47
µF
3.3 µH
B
+
68 kΩ
68 kΩ
47
100 nF
(1.5 kΩ)
(1.5 kΩ)
µF
10 kΩ
10 kΩ
10 kΩ
+
47
µF
100
nF
330
pF
200
nF
SDA
SCL
220
nF
6.8
nF
56 kΩ
52 53
54
57
58
59
60
61
55
56
+
100
nF
POWER
SUPPLY
AMPLIFIER
x1/ x15
RDS
UPDATE
47 µF
WB
62
IFBWFLAG
63 SDA
64 SCL
AM STEREO
RDS
MUTE
2
MUX
I
C-BUS
C
IF
COUNT
AM
DEMOD
DGND
D
E
2
I
C-bus interface
FM
AM
65
F
BUFFER
MPXOUT
IF2GND
390 Ω
66
67
G
8.2 nF
270 pF
H
I
FM
DEMOD
IF
FILTER
BANDWIDTH
CONTROL
22 nF
8.2 nF
68
69
70
LEVEL
71
72
73
20.5 MHz
CRYSTAL
20.5
MHz
J
OSCILLATOR
8.2 nF
74
75
10 kΩ
LEVEL
DAA
2
I
C-bus
STABI
2
22 nF
I
C-bus
820 Ω
R76 120 kΩ
TEA6848H
76
K
77
78
220 nF
L
M
79
80
10 µF
4
3
2
1
R4
3.3 kΩ
47
nF
22
nF
47 nF
47 nF
L2
N
22 Ω
SFR450H
22 nF
coaxial connector (SMC)
test pin and STOCKO connector
jumper
100 nF
100 nF
MHC446
O
2 kΩ
47 Ω
2 kΩ
AM IF2
input
AM IF
output
Fig.11 Test circuit (continued from Fig.10).
41
2004 Nov 12
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
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TEA6848H
Table 31 DC operating points
UNLOADED DC VOLTAGE (V)
SYMBOL
PIN
AM MODE
TYP.
FM MODE
TYP.
MIN.
floating
MAX.
MIN.
MAX.
FMLIMDCFDB1
FMLIMDCFDB2
AMIF2DEC
IREFFMIF2
AMNBHOLD
AMIF2IN
1
2
3.7
3.7
4.2
4.8
4.8
floating
4.2
3
2.4
2.7
3.2
floating
4
0
0.4
0.55
8.4
0.7
5
4.3
4.6
2.7
5.1
3.2
8
−
6
2.4
floating
IF1GND
7
external 0
external 0
FMMIX2IN
COFFSET
FMMIX2DEC
IFCDAATEST
IFAMPOUT
VDDA1
8
0
0.1
0.1
7.9
−
−
−
1.5
1.8
4
2.1
4.5
2.1
9
floating
3.5
10
11
0
0
1.5
1.8
0
12 7.2
2.4
3
3.6
13 external 8.5
14 2.4
external 8.5
IFAMPIN
2.7
2.7
3
3
1.5
2
2
2.5
2.5
IFAMPDEC
IF2FILQ
15 2.4
1.5
16
17
0
0
0
IF2FILI
0
MIX1OUT1
MIX1OUT2
VDDA2
18 external 8.5
19 external 8.5
20 external 8.5
21 open-collector
22 2.3
external 8.5
external 8.5
external 8.5
SWFLAG
AMMIX1DEC
AMMIX1IN
VAMCASFB
VAMCAS
2.75
2.75
4.3
5
3.1
3.1
4.9
5.5
4.6
3.1
floating
floating
0
23 2.3
24 3.7
0.1
0.2
25 4.5
0
0.1
1
TAFAMAGC
THFAMAGC
IAMAGC
26
0
2.8
2.8
0 (no WB)
floating
1
0.3 (no WB)
0.5 (no WB)
27 2.5
28 8.5 (external biasing)
2
3
Vref(MIX)
29 2.7
30
31 external 0
3.1
1.3
3.4
1.6
6.5
7.1
2.8
7.9
3.3
FMMIXIN1
RFGND
1
2.3
external 0
−
i.c.
32
33
34
−
1
0
FMMIXIN2
WBFLAG
1.3
1.6
2.3
2.8
3.3
4 (WB)
− (FM)
4.5 (WB)
<0.5 (FM)
−
5 (WB)
− (FM)
IFMAGC
35 5 (external application)
0.1 (external
biasing)
4 (external
biasing)
2004 Nov 12
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Philips Semiconductors
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UNLOADED DC VOLTAGE (V)
SYMBOL
PIN
AM MODE
TYP.
FM MODE
TYP.
MIN.
MAX.
MIN.
MAX.
TFMAGC
36 7.5
8
8.3
0.3
8.5
3.9
1
4.6
5.3
7
TKEYEDAGC
DAAOUT
DAATD
37 floating
38
39 floating
−
−
−
−
−
0.2
0.2
0.2
0
8.25
1.5
8.5
DAAIN
40
41
42
43
0
−
0
0
−
i.c.
−
Vtune
−
−
8.5
8.5
0
−
−
8.5
8.5
CPOUT
VDDA3
0
44 external 8.5
45 3.2
external 8.5
3.2
FREF
3.4
3.7
3.4
3.7
VDDD
46 external 5
47 external 0
48 external 0
49 2.2
external 5
external 0
external 0
2.2
DGND
VCOGND
OSCFDB
OSCTNK
VDDA4
2.8
6.1
3.4
7.2
2.8
6.1
3.4
7.2
50
5
5
51 external 8.5
external 8.5
2
MPXDCFDB
AFSAMPLE
AFHOLD
TRDSMUTE
52
53
−
2.4
0.2
2.8
0.5
0
0.2
0.5
2.7
4.6
1
0
54 open-collector 5
55 1.7 2.2
open-collector
0.7 (muted)
1.2 (muted)
1.7 (muted)
5.2 (not muted) 5.7 (not muted) 6.2 (not muted)
floating 3.3
AMAFIF2
RDSMPX
FMMPX
VDDA5
56
57
58
4
0
0
4.3
3.2
4
4
4.8
4.8
0.5
3.2
59 external 5
60
61 external 8.5
62 open-collector 8.5
external 5
MODDET
VDDA6
0
2
2.5
3
external 8.5
IFBWFLAG
SDA
3 (IFBW = 1)
3.3 (IFBW = 1) 4.1 (IFBW = 1)
63 4.8
64 4.8
5
5.2
5.2
−
4.8
5
5
−
5.2
5.2
4
SCL
5
4.8
VIFBW
65
0
0.1
0.5
IF2GND
CINT
66 external 0
external 0
67
68
69
70
0
0
0
0
3.2
4
4.8
4
MODETOUT
TACD
2
3
3.2
3.6
−
4
Vlevel(AMFM)
XTAL1
−
7
0
7
71 1.7
2.1
2.5
1.7
2.1
2.5
XTALGND
72 external 0
external 0
2004 Nov 12
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Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
TEA6848H
UNLOADED DC VOLTAGE (V)
SYMBOL
PIN
AM MODE
TYP.
FM MODE
TYP.
MIN.
MAX.
MIN.
MAX.
XTAL2
73 1.7
74 0.5
2.1
2.5
2
1.7
0.3
0.37
4
2.1
2.5
0.8
0.4
4.5
Vlevel(ACD)
ACDTHRES
IREF
1
0.5
−
75 0.37
76
−
0.4
4.5
4
4.25
4.25
AMMIX2OUT1
AMMIX2OUT2
CAGC
77 external 8.5
78 external 8.5
79 3.6
external 8.5
external 8.5
1.7
4.3
0.8
4.8
1.2
2.5
4.2
3.3
4.8
Vref(lim)
80 0.5
3.6
14 INTERNAL CIRCUITRY
Table 32 Equivalent pin circuits
PIN
SYMBOL
FMLIMDCFDB1
FMLIMDCFDB2
EQUIVALENT CIRCUIT
1
2
1, 2
MDB088
3
6
AMIF2DEC
AMIF2IN
500 Ω
3
2 kΩ
6
MHC375
2004 Nov 12
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Philips Semiconductors
Product specification
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TEA6848H
PIN
SYMBOL
IREFFMIF2
EQUIVALENT CIRCUIT
4
4
MDB089
5
AMNBHOLD
80 kΩ
5
MHC377
7
IF1GND
8
FMMIX2IN
FMMIX2DEC
10
4 kΩ
4 kΩ
10
8
350 Ω
MDB090
9
COFFSET
1 MΩ
9
MHC379
11
IFCDAATEST
MHC453
11
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Philips Semiconductors
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TEA6848H
PIN
SYMBOL
IFAMPOUT
EQUIVALENT CIRCUIT
12
330 Ω
12
MHC381
13
14
15
VDDA1
IFAMPIN
IFAMPDEC
5
kΩ
5
kΩ
330 Ω
14
15
MDB091
16
IF2FILQ
16
MHC455
17
IF2FILI
MHC454
17
2004 Nov 12
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Philips Semiconductors
Product specification
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TEA6848H
PIN
SYMBOL
MIX1OUT1
EQUIVALENT CIRCUIT
18
19
18
19
MIX1OUT2
MHC383
20
21
VDDA2
SWFLAG
21
MHC384
22
23
AMMIX1DEC
AMMIX1IN
400 Ω
23
22
MHC385
24
25
VAMCASFB
VAMCAS
10 kΩ
24
MHC447
1 kΩ
25
MHC448
2004 Nov 12
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Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
TEA6848H
PIN
SYMBOL
TAFAMAGC
EQUIVALENT CIRCUIT
26
26
MDB100
27
THFAMAGC
27
MDB101
28
29
IAMAGC
28
MHC388
Vref(MIX)
29
MHC389
30
33
FMMIXIN1
FMMIXIN2
10
kΩ
10
kΩ
30
33
MHC390
31
RFGND
2004 Nov 12
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Philips Semiconductors
Product specification
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Precision Adjacent Channel Suppression (NICE-PACS)
TEA6848H
PIN
SYMBOL
EQUIVALENT CIRCUIT
32
34
i.c.
WBFLAG
200 Ω
34
50 kΩ
MHC391
35
IFMAGC
35
MHC392
36
TFMAGC
10 kΩ
10 kΩ
36
MHC393
37
TKEYEDAGC
5 kΩ
37
MHC394
38
DAAOUT
36
kΩ
38
MHC395
2004 Nov 12
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Philips Semiconductors
Product specification
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TEA6848H
PIN
SYMBOL
EQUIVALENT CIRCUIT
39
DAATD
39
MHC396
40
DAAIN
43
40
2.5 kΩ
MHC397
41
42
i.c.
Vtune
42
MHC398
43
CPOUT
40
43
MHC399
44
VDDA3
2004 Nov 12
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Philips Semiconductors
Product specification
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TEA6848H
PIN
SYMBOL
EQUIVALENT CIRCUIT
45
FREF
1 kΩ
45
MHC400
46
47
48
49
50
VDDD
DGND
VCOGND
OSCFDB
OSCTNK
3 kΩ
50
49
MHC401
51
52
VDDA4
MPXDCFDB
52
MHC449
53
AFSAMPLE
53
MHC402
2004 Nov 12
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Philips Semiconductors
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TEA6848H
PIN
SYMBOL
AFHOLD
EQUIVALENT CIRCUIT
54
54
MHC403
55
TRDSMUTE
55
MHC404
56
AMAFIF2
0.35 pF
201 kΩ
56
MHC405
57
RDSMPX
300 Ω
57
MDB102
2004 Nov 12
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Philips Semiconductors
Product specification
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TEA6848H
PIN
SYMBOL
FMMPX
EQUIVALENT CIRCUIT
58
280 Ω
58
MDB103
59
60
VDDA5
MODDET
60
MDB104
61
62
VDDA6
IFBWFLAG
62
1 kΩ
62
50 µA
AM
FM (FMBW = 1)
MDB095
63
SDA
1 kΩ
63
MHC410
2004 Nov 12
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Philips Semiconductors
Product specification
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TEA6848H
PIN
SYMBOL
EQUIVALENT CIRCUIT
64
65
SCL
1 kΩ
64
MHC411
VIFBW
65
MDB096
66
67
IF2GND
CINT
67
MDB097
68
MODETOUT
68
MHC450
69
TACD
2 kΩ
69
MHC451
2004 Nov 12
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Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
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TEA6848H
PIN
SYMBOL
Vlevel(AMFM)
EQUIVALENT CIRCUIT
70
150 Ω
70
MHC414
71
72
73
XTAL1
27.6 pF
27.6 pF
XTALGND
XTAL2
20 kΩ
10 kΩ
20 kΩ
71
73
10 kΩ
72
MHC415
74
Vlevel(ACD)
8 kΩ
74
MDB212
75
ACDTHRES
75
MDB099
2004 Nov 12
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Philips Semiconductors
Product specification
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TEA6848H
PIN
SYMBOL
EQUIVALENT CIRCUIT
76
IREF
10 kΩ
76
MHC418
77
78
AMMIX2OUT1
AMMIX2OUT2
77
78
MHC419
2004 Nov 12
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Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
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TEA6848H
PIN
SYMBOL
EQUIVALENT CIRCUIT
79
CAGC
79
AM
10 kΩ
420 Ω
79
FM
MDB092
80
Vref(lim)
80
MHC452
2004 Nov 12
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Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
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TEA6848H
15 PACKAGE OUTLINE
LQFP80: plastic low profile quad flat package; 80 leads; body 12 x 12 x 1.4 mm
SOT315-1
y
X
A
60
41
Z
61
40
E
e
H
A
E
2
E
A
(A )
3
A
1
w
p
M
θ
b
L
p
L
pin 1 index
80
21
detail X
1
20
Z
D
v
M
A
e
w
M
b
p
D
B
H
v
M
B
D
0
5
10 mm
scale
DIMENSIONS (mm are the original dimensions)
A
(1)
(1)
(1)
(1)
UNIT
A
A
A
b
c
D
E
e
H
H
L
L
v
w
y
Z
Z
θ
1
2
3
p
D
E
p
D
E
max.
7o
0o
0.16 1.5
0.04 1.3
0.27 0.18 12.1 12.1
0.13 0.12 11.9 11.9
14.15 14.15
13.85 13.85
0.75
0.30
1.45 1.45
1.05 1.05
mm
1.6
0.25
0.5
1
0.2 0.15 0.1
Note
1. Plastic or metal protrusions of 0.25 mm maximum per side are not included.
REFERENCES
OUTLINE
EUROPEAN
PROJECTION
ISSUE DATE
VERSION
IEC
JEDEC
JEITA
00-01-19
03-02-25
SOT315-1
136E15
MS-026
2004 Nov 12
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Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
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TEA6848H
16 SOLDERING
To overcome these problems the double-wave soldering
method was specifically developed.
16.1 Introduction to soldering surface mount
packages
If wave soldering is used the following conditions must be
observed for optimal results:
This text gives a very brief insight to a complex technology.
A more in-depth account of soldering ICs can be found in
our “Data Handbook IC26; Integrated Circuit Packages”
(document order number 9398 652 90011).
• Use a double-wave soldering method comprising a
turbulent wave with high upward pressure followed by a
smooth laminar wave.
• For packages with leads on two sides and a pitch (e):
There is no soldering method that is ideal for all surface
mount IC packages. Wave soldering can still be used for
certain surface mount ICs, but it is not suitable for fine pitch
SMDs. In these situations reflow soldering is
recommended.
– larger than or equal to 1.27 mm, the footprint
longitudinal axis is preferred to be parallel to the
transport direction of the printed-circuit board;
– smaller than 1.27 mm, the footprint longitudinal axis
must be parallel to the transport direction of the
printed-circuit board.
16.2 Reflow soldering
Reflow soldering requires solder paste (a suspension of
fine solder particles, flux and binding agent) to be applied
to the printed-circuit board by screen printing, stencilling or
pressure-syringe dispensing before package placement.
Driven by legislation and environmental forces the
The footprint must incorporate solder thieves at the
downstream end.
• For packages with leads on four sides, the footprint must
be placed at a 45° angle to the transport direction of the
printed-circuit board. The footprint must incorporate
solder thieves downstream and at the side corners.
worldwide use of lead-free solder pastes is increasing.
Several methods exist for reflowing; for example,
convection or convection/infrared heating in a conveyor
type oven. Throughput times (preheating, soldering and
cooling) vary between 100 seconds and 200 seconds
depending on heating method.
During placement and before soldering, the package must
be fixed with a droplet of adhesive. The adhesive can be
applied by screen printing, pin transfer or syringe
dispensing. The package can be soldered after the
adhesive is cured.
Typical reflow peak temperatures range from
215 °C to 270 °C depending on solder paste material. The
top-surface temperature of the packages should
preferably be kept:
Typical dwell time of the leads in the wave ranges from
3 seconds to 4 seconds at 250 °C or 265 °C, depending
on solder material applied, SnPb or Pb-free respectively.
A mildly-activated flux will eliminate the need for removal
of corrosive residues in most applications.
• below 225 °C (SnPb process) or below 245 °C (Pb-free
process)
– for all BGA, HTSSON..T and SSOP..T packages
16.4 Manual soldering
– for packages with a thickness ≥ 2.5 mm
Fix the component by first soldering two
diagonally-opposite end leads. Use a low voltage (24 V or
less) soldering iron applied to the flat part of the lead.
Contact time must be limited to 10 seconds at up to
300 °C.
– for packages with a thickness < 2.5 mm and a
volume ≥ 350 mm3 so called thick/large packages.
• below 240 °C (SnPb process) or below 260 °C (Pb-free
process) for packages with a thickness < 2.5 mm and a
volume < 350 mm3 so called small/thin packages.
When using a dedicated tool, all other leads can be
soldered in one operation within 2 seconds to 5 seconds
between 270 °C and 320 °C.
Moisture sensitivity precautions, as indicated on packing,
must be respected at all times.
16.3 Wave soldering
Conventional single wave soldering is not recommended
for surface mount devices (SMDs) or printed-circuit boards
with a high component density, as solder bridging and
non-wetting can present major problems.
2004 Nov 12
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Product specification
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16.5 Suitability of surface mount IC packages for wave and reflow soldering methods
SOLDERING METHOD
PACKAGE(1)
WAVE
not suitable
REFLOW(2)
BGA, HTSSON..T(3), LBGA, LFBGA, SQFP, SSOP..T(3), TFBGA,
VFBGA, XSON
suitable
DHVQFN, HBCC, HBGA, HLQFP, HSO, HSOP, HSQFP, HSSON,
HTQFP, HTSSOP, HVQFN, HVSON, SMS
PLCC(5), SO, SOJ
not suitable(4)
suitable
suitable
suitable
LQFP, QFP, TQFP
not recommended(5)(6) suitable
SSOP, TSSOP, VSO, VSSOP
CWQCCN..L(8), PMFP(9), WQCCN..L(8)
not recommended(7)
suitable
not suitable
not suitable
Notes
1. For more detailed information on the BGA packages refer to the “(LF)BGA Application Note” (AN01026); order a copy
from your Philips Semiconductors sales office.
2. All surface mount (SMD) packages are moisture sensitive. Depending upon the moisture content, the maximum
temperature (with respect to time) and body size of the package, there is a risk that internal or external package
cracks may occur due to vaporization of the moisture in them (the so called popcorn effect). For details, refer to the
Drypack information in the “Data Handbook IC26; Integrated Circuit Packages; Section: Packing Methods”.
3. These transparent plastic packages are extremely sensitive to reflow soldering conditions and must on no account
be processed through more than one soldering cycle or subjected to infrared reflow soldering with peak temperature
exceeding 217 °C ± 10 °C measured in the atmosphere of the reflow oven. The package body peak temperature
must be kept as low as possible.
4. These packages are not suitable for wave soldering. On versions with the heatsink on the bottom side, the solder
cannot penetrate between the printed-circuit board and the heatsink. On versions with the heatsink on the top side,
the solder might be deposited on the heatsink surface.
5. If wave soldering is considered, then the package must be placed at a 45° angle to the solder wave direction.
The package footprint must incorporate solder thieves downstream and at the side corners.
6. Wave soldering is suitable for LQFP, QFP and TQFP packages with a pitch (e) larger than 0.8 mm; it is definitely not
suitable for packages with a pitch (e) equal to or smaller than 0.65 mm.
7. Wave soldering is suitable for SSOP, TSSOP, VSO and VSSOP packages with a pitch (e) equal to or larger than
0.65 mm; it is definitely not suitable for packages with a pitch (e) equal to or smaller than 0.5 mm.
8. Image sensor packages in principle should not be soldered. They are mounted in sockets or delivered pre-mounted
on flex foil. However, the image sensor package can be mounted by the client on a flex foil by using a hot bar
soldering process. The appropriate soldering profile can be provided on request.
9. Hot bar soldering or manual soldering is suitable for PMFP packages.
2004 Nov 12
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17 DATA SHEET STATUS
DATA SHEET
STATUS(1)
PRODUCT
STATUS(2)(3)
LEVEL
DEFINITION
I
Objective data
Development This data sheet contains data from the objective specification for product
development. Philips Semiconductors reserves the right to change the
specification in any manner without notice.
II
Preliminary data Qualification
This data sheet contains data from the preliminary specification.
Supplementary data will be published at a later date. Philips
Semiconductors reserves the right to change the specification without
notice, in order to improve the design and supply the best possible
product.
III
Product data
Production
This data sheet contains data from the product specification. Philips
Semiconductors reserves the right to make changes at any time in order
to improve the design, manufacturing and supply. Relevant changes will
be communicated via a Customer Product/Process Change Notification
(CPCN).
Notes
1. Please consult the most recently issued data sheet before initiating or completing a design.
2. The product status of the device(s) described in this data sheet may have changed since this data sheet was
published. The latest information is available on the Internet at URL http://www.semiconductors.philips.com.
3. For data sheets describing multiple type numbers, the highest-level product status determines the data sheet status.
18 DEFINITIONS
19 DISCLAIMERS
Short-form specification
The data in a short-form
Life support applications
These products are not
specification is extracted from a full data sheet with the
same type number and title. For detailed information see
the relevant data sheet or data handbook.
designed for use in life support appliances, devices, or
systems where malfunction of these products can
reasonably be expected to result in personal injury. Philips
Semiconductors customers using or selling these products
for use in such applications do so at their own risk and
agree to fully indemnify Philips Semiconductors for any
damages resulting from such application.
Limiting values definition Limiting values given are in
accordance with the Absolute Maximum Rating System
(IEC 60134). Stress above one or more of the limiting
values may cause permanent damage to the device.
These are stress ratings only and operation of the device
at these or at any other conditions above those given in the
Characteristics sections of the specification is not implied.
Exposure to limiting values for extended periods may
affect device reliability.
Right to make changes
Philips Semiconductors
reserves the right to make changes in the products -
including circuits, standard cells, and/or software -
described or contained herein in order to improve design
and/or performance. When the product is in full production
(status ‘Production’), relevant changes will be
Application information
Applications that are
communicated via a Customer Product/Process Change
Notification (CPCN). Philips Semiconductors assumes no
responsibility or liability for the use of any of these
products, conveys no licence or title under any patent,
copyright, or mask work right to these products, and
makes no representations or warranties that these
products are free from patent, copyright, or mask work
right infringement, unless otherwise specified.
described herein for any of these products are for
illustrative purposes only. Philips Semiconductors make
no representation or warranty that such applications will be
suitable for the specified use without further testing or
modification.
2004 Nov 12
61
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
TEA6848H
20 PURCHASE OF PHILIPS I2C COMPONENTS
Purchase of Philips I2C components conveys a license under the Philips’ I2C patent to use the
components in the I2C system provided the system conforms to the I2C specification defined by
Philips. This specification can be ordered using the code 9398 393 40011.
2004 Nov 12
62
Philips Semiconductors – a worldwide company
Contact information
For additional information please visit http://www.semiconductors.philips.com.
Fax: +31 40 27 24825
For sales offices addresses send e-mail to: sales.addresses@www.semiconductors.philips.com.
© Koninklijke Philips Electronics N.V. 2004
SCA76
All rights are reserved. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner.
The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed
without notice. No liability will be accepted by the publisher for any consequence of its use. Publication thereof does not convey nor imply any license
under patent- or other industrial or intellectual property rights.
Printed in The Netherlands
R32/03/pp63
Date of release: 2004 Nov 12
Document order number: 9397 750 14272
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