TEA6845H [NXP]

New In Car Entertainment NICE car radio; 新的车载娱乐NICE车载电台
TEA6845H
型号: TEA6845H
厂家: NXP    NXP
描述:

New In Car Entertainment NICE car radio
新的车载娱乐NICE车载电台

文件: 总48页 (文件大小:264K)
中文:  中文翻译
下载:  下载PDF数据表文档文件
INTEGRATED CIRCUITS  
DATA SHEET  
TEA6845AH; TEA6845H  
New In Car Entertainment (NICE)  
car radio  
Product specification  
2001 Apr 12  
File under Integrated Circuits, IC01  
Philips Semiconductors  
Product specification  
New In Car Entertainment (NICE) car radio  
TEA6845AH; TEA6845H  
CONTENTS  
11  
12  
AC CHARACTERISTICS  
I2C-BUS PROTOCOL  
I2C-bus specification  
Test mode  
1
2
3
4
5
6
7
FEATURES  
12.1  
GENERAL DESCRIPTION  
ORDERING INFORMATION  
QUICK REFERENCE DATA  
BLOCK DIAGRAM  
12.1.1  
12.1.2  
12.1.3  
12.1.4  
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  
Data transfer for the TEA6845  
I2C-bus pull-up resistors  
Frequency setting  
I2C-bus protocol  
PINNING  
Data transfer mode and IC address  
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  
Read mode: data byte 1  
FUNCTIONAL DESCRIPTION  
7.1  
Oscillators  
7.1.1  
7.1.2  
7.1.3  
7.2  
7.2.1  
7.2.2  
7.2.3  
7.2.4  
7.2.5  
7.3  
7.3.1  
7.3.2  
7.3.3  
7.3.4  
7.3.5  
7.3.6  
7.4  
VCO  
Crystal oscillator  
PLL  
FM signal channel  
DAA  
FM I/Q mixer  
FM keyed AGC  
FM IF amplifiers  
FM demodulator  
AM signal channel  
AM tuner including mixer 1 and mixer 2  
AM RF AGC and IF2 AGC  
AM detector  
AM AF or IF2 switch  
AM noise detector and blanker  
FM and AM level detector  
Test mode  
13  
TEST AND APPLICATION INFORMATION  
PACKAGE OUTLINES  
14  
15  
SOLDERING  
15.1  
Introduction to soldering surface mount  
packages  
Reflow soldering  
Wave soldering  
Manual soldering  
15.2  
15.3  
15.4  
15.5  
Suitability of surface mount IC packages for  
wave and reflow soldering methods  
16  
17  
18  
19  
DATA SHEET STATUS  
DEFINITIONS  
8
LIMITING VALUES  
9
THERMAL CHARACTERISTICS  
DC CHARACTERISTICS  
DISCLAIMERS  
PURCHASE OF PHILIPS I2C COMPONENTS  
10  
2001 Apr 12  
2
Philips Semiconductors  
Product specification  
New In Car Entertainment (NICE) car radio  
TEA6845AH; TEA6845H  
1
FEATURES  
FM mixer for conversion of FM RF from 65 to 108 MHz  
to IF of 10.7 MHz; the mixer provides inherent image  
rejection  
FM RF mixer can be set to receive weather band radio  
up to 162.55 MHz; weather band radio flag output  
Level detector for AM and FM with temperature  
compensated output voltage; starting point and slope of  
level output is programmable via the I2C-bus  
AM mixer 1 for conversion of AM RF to AM IF1 of  
10.7 MHz  
LC tuner oscillator providing mixer frequencies for  
FM mixer and AM mixer 1  
AM RF PIN diode drive circuit; AGC threshold detection  
at AM mixer 1 and IF2 AGC input; threshold is  
programmable via the I2C-bus; AM IF2 AGC and  
demodulator  
AM mixer 2 for conversion of AM IF1 to AM IF2 of  
450 kHz  
AM AF output switchable to provide AM IF2 for  
AM stereo decoder  
Crystal oscillator providing mixer frequencies for  
AM 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  
AM noise blanker with blanking at AM IF2  
Several test modes available for fast IC and system  
Fast synthesizer PLL tuning system with local control for  
tests.  
inaudible RDS updating  
Timing function for RDS update algorithm and control  
signal output for car audio signal processor ICs  
(TEA688x, SAA77xx) or car radio integrated signal  
processor IC (TEF6890H)  
2
GENERAL DESCRIPTION  
The TEA6845 is a single IC with car radio tuner for  
AM and FM intended for microcontroller tuning with the  
I2C-bus. It provides the following functions:  
Digital auto alignment circuit for conversion of  
LC oscillator tuning voltage to controlled alignment  
voltage of FM antenna tank circuit  
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  
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 or distance  
function; AGC threshold is a programmable and keyed  
function switchable via the I2C-bus  
FM single conversion receiver with integrated image  
rejection for IF = 10.7 MHz capable of selecting US FM,  
US weather, Europe FM, East Europe FM and Japan  
FM bands.  
FM IF linear amplifiers with high dynamic input range  
FM quadrature demodulator with automatic centre  
frequency adjustment and Total Harmonic Distortion  
(THD) compensation  
3
ORDERING INFORMATION  
TYPE  
PACKAGE  
NUMBER  
NAME  
DESCRIPTION  
VERSION  
TEA6845AH  
QFP64  
QFP64  
plastic quad flat package; 64 leads (lead length 1.95 mm);  
body 14 × 20 × 2.8 mm  
SOT319-5  
TEA6845H  
plastic quad flat package; 64 leads (lead length 1.95 mm);  
SOT319-2  
body 14 × 20 × 2.8 mm  
2001 Apr 12  
3
Philips Semiconductors  
Product specification  
New In Car Entertainment (NICE) car radio  
TEA6845AH; TEA6845H  
4
QUICK REFERENCE DATA  
SYMBOL  
VDDA(n)  
PARAMETER  
CONDITIONS  
MIN.  
TYP.  
8.5  
MAX.  
UNIT  
analog supply voltage 1, 3, 4, 5  
and 6  
8
9
V
IDDA(tot)  
total analog supply current 1, 3, 4, FM mode  
45  
56  
49  
5
67  
mA  
mA  
V
5 and 6  
AM mode  
39  
59  
VDDA2  
IDDA2  
analog supply voltage 2  
4.75  
6.5  
5.25  
9.8  
analog supply current 2  
FM mode  
AM mode  
8.1  
5.9  
5
mA  
mA  
V
4.7  
7.1  
VDDD  
IDDD  
digital supply voltage  
digital supply current  
4.75  
18  
5.25  
28  
FM mode  
AM mode  
LW  
23  
23  
mA  
mA  
MHz  
MHz  
MHz  
MHz  
18  
28  
fAM(ant)  
AM input frequency  
0.144  
0.522  
5.85  
65  
0.288  
1.710  
9.99  
108  
MW  
SW  
fFM(ant)  
FM input frequency  
fFM(WB)(ant)  
Tamb  
FM weather band input frequency  
ambient temperature  
162.4  
40  
162.55 MHz  
+85  
°C  
AM overall system parameters (1 × SFE10.7MS3; 1 × SFR450H)  
(S+N)/N  
THD  
signal plus noise-to-noise ratio  
total harmonic distortion  
m = 0.3  
m = 0.8  
m = 0.9  
58  
dB  
%
0.3  
0.5  
%
FM overall system parameters (3 × SFE10.7MS3)  
(S+N)/N  
signal plus noise-to-noise ratio  
f = 22.5 kHz;  
de-emphasis = 50 µs  
65  
dB  
%
THD  
total harmonic distortion  
f = 75 kHz  
0.6  
1
2001 Apr 12  
4
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V
DGND  
39  
OSCFDB  
AFHOLD  
AMAFIF2  
RDSMPX FMMPX  
DDA3  
f
V
V
V
V
V
ref  
37  
tune  
DDA4  
DDD  
DAAIN  
33  
CPOUT  
35  
VCOGND OSCTNK  
AFSAMPLE TRDSMUTE  
DDA2 DDA1  
34  
36  
38  
40 41 42  
43  
44  
45  
46  
47  
48  
49  
50  
51  
32  
31  
SEQUENTIAL  
CIRCUIT FOR  
RDS UPDATING  
DAATD  
AM  
DETECTOR  
POWER  
SUPPLY  
VCO  
MUTE  
ANTENNA  
DAA  
DAAOUT  
TUNING SYSTEM  
AM  
2 ms/20 ms  
10.25 MHz  
52  
53  
FM IF  
AM IF2  
2
SDA  
SCL  
I C-bus  
IF  
COUNT  
2
I C-BUS  
30  
29  
28  
T1FMAGC  
T2FMAGC  
IFMAGC  
FM  
AGC  
54  
55  
IF2GND  
QDET1  
WX  
N1  
TEA6845AH  
TEA6845H  
27  
26  
25  
FMMIXIN2  
AM  
IF AGC  
LEVEL  
DAA  
×
DEMODULATOR  
56  
57  
RFGND  
FM  
÷2  
90°  
QDET2  
I/Q MIXER  
FMMIXIN1  
C
AFC  
24  
AM-NOISE  
DETECTOR  
PEAK/  
AVERAGE  
AM  
LEVEL  
BLANK  
PULSE  
V
90°  
Σ
ref(FMMIX)  
58  
V
level  
59  
60  
61  
XTAL1  
23  
22  
21  
FM  
LIMITER/  
LEVEL  
IAMAGC  
T2AMAGC  
T1AMAGC  
CRYSTAL  
OSCILLATOR  
×
AM  
MIXER2  
XTALGND  
XTAL2  
N2  
AM  
RF AGC  
÷5/10  
62  
I
ref  
IFAMP1  
IFAMP2  
×
20  
AMMIX1IN1  
AM  
63  
64  
MIXER 1  
AMMIX2OUT1  
AMMIX2OUT2  
19  
18  
17 16  
15 14  
13  
12  
11  
10  
9
8
7
6
5
4
3
2
1
MGU350  
C
C
AGC  
AMMIX1IN2  
V
MIX1OUT2  
IFAMP1DEC  
IFAMP1IN  
IFAMP1OUT  
IFAMP2DEC  
IF1GND  
FMLIMIN  
offset  
V
MIX1OUT1  
IFAMP2IN  
AMIF2IN  
AMIF2DEC  
FMLIMDEC  
DDA5  
DDA6  
AMNBHOLD  
IFAMP2OUT  
Fig.1 Block diagram.  
ahdnbok,uflapegwidt  
Philips Semiconductors  
Product specification  
New In Car Entertainment (NICE) car radio  
TEA6845AH; TEA6845H  
6
PINNING  
SYMBOL  
PIN  
DESCRIPTION  
CAGC  
1
AMIFAGC capacitor  
FMLIMDEC  
FMLIMIN  
AMIF2DEC  
IFAMP2OUT  
AMNBHOLD  
AMIF2IN  
IF1GND  
2
FM limiter decoupling  
3
FM limiter input (10.7 MHz)  
decoupling for AM IF2 input  
IF amplifier 2 output (10.7 MHz)  
AM noise blanker hold output  
4
5
6
7
AM IF2 input (450 kHz) for demodulator AGC and AM level detector  
AM IF1 ground  
8
IFAMP2IN  
Coffset  
9
IF amplifier 2 input (10.7 MHz)  
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  
DC feedback for offset compensation RDS mute  
IF amplifier 2 decoupling and AGC capacitor for AM noise blanker  
IF amplifier 1 output (10.7 MHz)  
IFAMP2DEC  
IFAMP1OUT  
IFAMP1IN  
VDDA6  
IF amplifier 1 and AM mixer 2 input (10.7 MHz)  
analog supply voltage 6 (8.5 V) for IF amplifier 1 and 2  
AM mixer 2 and FM IF amplifier 1 decoupling  
FM mixer and AM mixer 1 IF output high (10.7 MHz)  
FM mixer and AM mixer 1 IF output low (10.7 MHz)  
analog supply voltage 5 (8.5 V) for FM mixer and AM mixer 1  
AM mixer 1 input 2  
IFAMP1DEC  
MIX1OUT1  
MIX1OUT2  
VDDA5  
AMMIX1IN2  
AMMIX1IN1  
T1AMAGC  
T2AMAGC  
IAMAGC  
Vref(FMMIX)  
FMMIXIN1  
RFGND  
AM mixer 1 input 1  
1st time constant output of AM front-end AGC  
2nd time constant of AM front-end AGC  
PIN diode drive current output of AM front-end AGC  
reference voltage for FM mixer  
input 1 of FM RF mixer  
RF ground  
FMMIXIN2  
IFMAGC  
T2FMAGC  
T1FMAGC  
DAAOUT  
DAATD  
input 2 of FM RF mixer  
PIN diode drive current output of FM front-end AGC  
2nd time constant of FM front-end AGC  
1st time constant of FM front-end AGC  
output of digital alignment circuit for antenna tank circuit  
temperature compensation diode of digital auto alignment circuit for antenna tank circuit  
input of digital auto alignment circuit for antenna tank circuit  
tuning voltage  
DAAIN  
Vtune  
CPOUT  
charge pump output  
VDDA4  
analog supply voltage 4 (8.5 V) for tuning PLL  
reference frequency output for signal processor IC  
digital supply voltage (5 V)  
fref  
VDDD  
DGND  
digital ground  
VCOGND  
VCO ground  
2001 Apr 12  
6
Philips Semiconductors  
Product specification  
New In Car Entertainment (NICE) car radio  
TEA6845AH; TEA6845H  
SYMBOL  
OSCFDB  
PIN  
DESCRIPTION  
41  
42  
43  
44  
45  
46  
47  
48  
49  
50  
51  
52  
53  
54  
55  
56  
57  
58  
59  
60  
61  
62  
63  
64  
VCO feedback  
OSCTNK  
VDDA3  
VCO tank circuit  
analog supply voltage 3 (8.5 V) for VCO  
AFSAMPLE  
AFHOLD  
TRDSMUTE  
AMAFIF2  
RDSMPX  
FMMPX  
VDDA2  
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  
analog supply voltage 2 (5 V) for on-chip power supply  
analog supply voltage 1 (8.5 V) for on-chip power supply  
I2C-bus data line input and output  
VDDA1  
SDA  
SCL  
I2C-bus clock line input  
IF2GND  
QDET1  
QDET2  
CAFC  
AM IF2 ground  
quadrature demodulator tank 1  
quadrature demodulator tank 2  
FM demodulator AFC capacitor  
Vlevel  
level voltage output for AM and FM  
crystal oscillator 1  
XTAL1  
XTALGND  
XTAL2  
crystal oscillator ground  
crystal oscillator 2  
Iref  
reference current for power supply  
AM mixer 2 output 1 (450 kHz)  
AMMIX2OUT1  
AMMIX2OUT2  
AM mixer 2 output 2 (450 kHz)  
2001 Apr 12  
7
Philips Semiconductors  
Product specification  
New In Car Entertainment (NICE) car radio  
TEA6845AH; TEA6845H  
C
V
V
1
2
51  
50  
AGC  
DDA1  
DDA2  
FMLIMDEC  
FMLIMIN  
3
49 FMMPX  
AMIF2DEC  
IFAMP2OUT  
AMNBHOLD  
AMIF2IN  
4
48 RDSMPX  
47 AMAFIF2  
46 TRDSMUTE  
45 AFHOLD  
5
6
7
IF1GND  
8
44 AFSAMPLE  
V
43  
IFAMP2IN  
9
DDA3  
TEA6845AH  
TEA6845H  
C
10  
42 OSCTNK  
OSCFDB  
offset  
IFAMP2DEC 11  
IFAMP1OUT 12  
IFAMP1IN 13  
41  
40 VCOGND  
39 DGND  
V
V
f
14  
38  
37  
36  
DDA6  
DDD  
IFAMP1DEC 15  
MIX1OUT1 16  
MIX1OUT2 17  
ref  
V
DDA4  
35 CPOUT  
V
V
tune  
18  
34  
DDA5  
AMMIX1IN2 19  
33 DAAIN  
MHB877  
Fig.2 Pin configuration.  
2001 Apr 12  
8
Philips Semiconductors  
Product specification  
New In Car Entertainment (NICE) car radio  
TEA6845AH; TEA6845H  
7
FUNCTIONAL DESCRIPTION  
Oscillators  
It includes an AGC PIN diode drive circuit for the FM RF  
AGC. The PIN diode drive can be activated via the I2C-bus  
as a local or distance function.  
7.1  
7.1.1  
VCO  
The AGC threshold is programmable and the keyed AGC  
function is switchable via the I2C-bus.  
The L and C tuned VCO provides the local oscillator signal  
for both FM and AM mixer 1. It has a frequency range of  
151.2 to 248.2 MHz.  
7.2.4  
FM IF AMPLIFIERS  
The two FM IF amplifiers provide 10 dB and 4 dB  
amplification with high linearity and dynamic range.  
7.1.2  
CRYSTAL OSCILLATOR  
The crystal oscillator provides a 20.5 MHz signal that is  
used for:  
7.2.5  
FM DEMODULATOR  
Reference frequency for frequency synthesizer PLL  
Local oscillator for AM mixer 2  
The FM quadrature demodulator includes automatic  
centre frequency adjustment and THD compensation.  
Reference frequency for the IF counter  
Timing signal for the RDS update algorithm  
7.3  
AM signal channel  
7.3.1  
AM TUNER INCLUDING MIXER 1 AND MIXER 2  
Reference frequency (75.4 kHz) for the TEA6880H (car  
audio signal processor - CASP) or TEF6890H (car radio  
integrated signal processor).  
The AM tuner is realized in a double conversion technique  
and is capable of selecting LW, MW and SW bands.  
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:  
7.1.3  
PLL  
Fast synthesizer PLL tuning system with local control for  
inaudible RDS updating.  
LW = 144 to 288 kHz  
MW = 530 to 1710 kHz (US AM band)  
SW = 5.85 to 9.99 MHz (including the 31 m, 41 m and  
7.2  
FM signal channel  
49 m bands).  
7.2.1  
DAA  
7.3.2  
AM RF AGC AND IF2 AGC  
FM RF Digital Auto Alignment (DAA) circuitry for the  
conversion of the VCO tuning voltage to a controlled  
alignment voltage for the FM antenna tank circuit.  
The AM RF includes a PIN diode drive circuit. The  
threshold detection points for AM AGC are performed at  
AM mixer 1 and AM IF2. AGC thresholds are  
programmable via the I2C-bus.  
7.2.2  
FM I/Q MIXER  
FM quadrature mixer converts FM RF (65 to 162.55 MHz)  
to IF of 10.7 MHz. The FM mixer provides inherent image  
rejection and high RF sensitivity.  
7.3.3  
AM DETECTOR  
The AM detector provides AM level information and  
AM AF or AM IF2.  
It is capable of tuning the US FM, US weather,  
Europe FM, Japan FM and East Europe FM bands:  
7.3.4  
AM AF OR IF2 SWITCH  
US FM = 87.9 to 107.9 MHz  
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.  
US weather FM = 162.4 to 162.55 MHz  
Europe FM = 87.5 to 108 MHz  
Japan FM = 76.0 to 91 MHz  
East Europe FM = 65.8 to 74 MHz.  
7.2.3  
FM KEYED AGC  
FM contains keyed wide-band RF AGC. AGC detection  
occurs at the FM mixer. The wide-band RF signal switches  
a narrow band signal (IF) from the FM IF level detector  
circuitry that controls the FM RF AGC block.  
2001 Apr 12  
9
Philips Semiconductors  
Product specification  
New In Car Entertainment (NICE) car radio  
TEA6845AH; TEA6845H  
7.3.5  
AM NOISE DETECTOR AND BLANKER  
If the test mode is enabled by pin fref:  
The settling time of the AM IF2 AGC is reduced to less  
than 100 ms in the nominal application  
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 digital-to-analog converters for the antenna DAA  
and the level DAA can be clocked directly by the SCL  
line of the I2C-bus  
The output at pin fref can be selected by the I2C-bus:  
TEA6880H or TEF6890H reference frequency, PLL  
reference frequency or PLL programmable divider  
output frequency  
Trigger sensitivity can be modified by changing the resistor  
value at pin AMNBHOLD.  
7.3.6  
FM AND AM LEVEL DETECTOR  
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.  
The RDS update control circuit can be clocked directly  
via pin DAATD  
Pin T1AMAGC can be used to enable the load PLL  
7.4  
Test mode  
circuit of the RDS update control circuit  
Charge pumps can be set into 3-state mode.  
The test mode of the IC is activated by:  
Sending the test byte (byte 5) to the IC  
Connecting pin fref through a 100 kresistor to VDDA1  
Applying 50 µA to pin fref.  
8
LIMITING VALUES  
In accordance with the Absolute Maximum Rating System (IEC 60134).  
SYMBOL  
VDDA1  
VDDA2  
VDDA3  
VDDA4  
VDDA5  
VDDA6  
VDDD  
PARAMETER  
CONDITIONS  
MIN.  
0.3  
MAX.  
+10  
UNIT  
analog supply voltage 1 for on-chip power supply  
analog supply voltage 2 for on-chip power supply  
analog supply voltage 3 for VCO  
V
V
V
V
V
V
V
V
0.3  
0.3  
0.3  
0.3  
0.3  
0.3  
0.3  
+6.5  
+10  
+10  
+10  
+10  
+6.5  
analog supply voltage 4 for tuning PLL  
analog supply voltage 5 for FM and AM RF  
analog supply voltage 6 for IF amplifier 1 and 2  
digital supply voltage  
VDD8.5-DD5 difference between any 8.5 V supply voltage and any note 1  
5 V supply voltage  
Tstg  
Tamb  
Ves  
storage temperature  
55  
+150  
+85  
°C  
°C  
V
ambient temperature  
40  
electrostatic handling voltage  
note 2  
note 3  
200  
2000  
+200  
+2000  
V
Notes  
1. To avoid damages 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 interferences can not pull down the 8.5 V supply below the 5 V supply.  
2. Machine model (R = 0 , C = 200 pF).  
3. Human body model (R = 1.5 k, C = 100 pF).  
2001 Apr 12  
10  
Philips Semiconductors  
Product specification  
New In Car Entertainment (NICE) car radio  
TEA6845AH; TEA6845H  
9
THERMAL CHARACTERISTICS  
SYMBOL  
Rth(j-a)  
PARAMETER  
CONDITIONS  
VALUE  
UNIT  
thermal resistance from junction to ambient  
in free air  
TEA6845AH  
TEA6845H  
46  
48  
K/W  
K/W  
10 DC CHARACTERISTICS  
VDDA1 = VDDA3 = VDDA4 = VDDA5 = VDDA6 = 8.5 V; VDDA2 = 5 V; VDDD = 5 V; Tamb = 25 °C; unless otherwise specified.  
SYMBOL  
PARAMETER  
CONDITIONS  
MIN.  
TYP.  
MAX.  
UNIT  
Supply voltage  
VDDA(n)  
VDDA2  
VDDD  
analog supply voltage 1, 3, 4, 5 and 6  
analog supply voltage 2  
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  
18  
23  
15  
28  
mA  
mA  
IDDA1  
analog supply current 1 for on-chip power  
supply  
IDDA2  
analog supply current 2 for on-chip power  
supply  
6.5  
8.1  
9.8  
mA  
IDDA3  
IDDA4  
analog supply current 3 for VCO  
6.5  
2.9  
mA  
mA  
analog supply current 4 for tuning PLL  
test mode;  
bit TMS3 = 1  
IDDA5  
IDDA6  
analog supply current 5 for FM RF  
5
mA  
mA  
analog supply current 6 for FM IF  
amplifier 1 and 2  
10  
12  
14  
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  
18  
23  
28  
mA  
mA  
IDDA1  
analog supply current 1 for on-chip power  
supply  
17.5  
IDDA2  
analog supply current 2 for on-chip power  
supply  
4.7  
5.9  
7.1  
mA  
IDDA3  
IDDA4  
analog supply current 3 for VCO  
6.5  
1.6  
mA  
mA  
analog supply current 4 for tuning PLL  
test mode;  
bit TMS3 = 1  
IDDA5  
analog supply current 5 for RF  
1.8  
6
mA  
mA  
mA  
mA  
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  
7.2  
7.2  
5.4  
5.4  
6
IAMMIX2OUT1 bias current of AM mixer 2 output 1  
IAMMIX2OUT2 bias current of AM mixer 2 output 2  
4.5  
4.5  
2001 Apr 12  
11  
Philips Semiconductors  
Product specification  
New In Car Entertainment (NICE) car radio  
TEA6845AH; TEA6845H  
SYMBOL  
PARAMETER  
CONDITIONS  
MIN.  
TYP.  
MAX.  
UNIT  
On-chip power supply reference current generator: pin Iref  
Vo(ref)  
Ro  
output reference voltage  
output resistance  
4
8
4.25  
4.5  
V
11  
13  
kΩ  
Io(max)  
maximum output current  
100  
+100  
nA  
11 AC CHARACTERISTICS  
DDA1 = VDDA3 = VDDA4 = VDDA5 = VDDA6 = 8.5 V; VDDA2 = 5 V; VDDD = 5 V; Tamb = 25 °C; see Figs 9 and 10; unless  
V
otherwise specified.  
SYMBOL  
PARAMETER  
CONDITIONS  
MIN.  
TYP.  
MAX.  
UNIT  
Voltage controlled oscillator  
fosc  
oscillator frequency  
carrier-to-noise ratio  
151.2  
248.2  
MHz  
C/N  
fosc = 200 MHz; f = 10 kHz  
101  
dBc  
-----------  
Hz  
RR  
ripple rejection  
fripple = 100 Hz;  
VDDA3(ripple) = 100 mV (RMS)  
fosc = 250 MHz  
97  
99  
dB  
dB  
fosc = 200 MHz  
FEEDBACK INPUT: PIN OSCFDB  
Vi(bias)  
input bias voltage  
2.2  
2.8  
3.4  
V
TANK CIRCUIT OUTPUT: PIN OSCTNK  
VO  
DC output voltage  
5
6.1  
1.5  
7.2  
V
V
Vo(rms)  
AC output voltage  
(RMS value)  
fosc = 200 MHz  
Crystal oscillator  
fxtal  
crystal frequency  
20.4996  
20.5  
20.5004  
500  
MHz  
Rxtal  
crystal motional  
resistance  
start of operating  
Cxtal  
C/N  
crystal shunt capacitance  
carrier-to-noise ratio  
18  
pF  
fxtal = 20.5 MHz (10.25 MHz);  
f = 10 kHz  
112  
dBc  
-----------  
Hz  
CIRCUIT INPUTS: PINS XTAL1, XTAL2 AND XTALGND  
Vxtal(rms)  
crystal voltage  
(RMS value)  
note 2  
350  
2.1  
mV  
V
VXTAL1  
,
DC bias voltage  
1.7  
500  
8
2.5  
VXTAL2  
Ri  
Ci  
real part of input  
impedance  
VXTAL1 VXTAL2 = 1 mV;  
note 1  
input capacitance  
note 1  
10  
12  
pF  
2001 Apr 12  
12  
Philips Semiconductors  
Product specification  
New In Car Entertainment (NICE) car radio  
TEA6845AH; TEA6845H  
SYMBOL  
PARAMETER  
CONDITIONS  
start-up at  
MIN.  
TYP.  
MAX.  
UNIT  
mA  
IXTALGND  
crystal oscillator circuit  
current  
9
VXTAL1 = VXTAL2 = 2.1 V  
operating at  
1.5  
mA  
VXTAL1 VXTAL2 = ±400 mV  
Oscillator divider N1  
N1  
oscillator divider ratio  
FM mode:  
standard, Europe and local  
weather band (WX)  
2
1
Oscillator divider N2  
N2  
oscillator divider ratio  
AM mode  
SW  
10  
5
LW and MW  
Synthesizer  
PROGRAMMABLE DIVIDER  
Nprog  
programmable divider  
512  
32767  
ratio  
Nstep  
programmable divider step  
size  
1
REFERENCE FREQUENCY DIVIDER  
Nref  
crystal oscillator divider  
ratio  
fxtal = 20.5 MHz  
fref = 100 kHz  
fref = 50 kHz  
fref = 25 kHz  
fref = 20 kHz  
fref = 10 kHz  
205  
410  
820  
1025  
2050  
CHARGE PUMP: PIN CPOUT  
Isink(cp1)l  
low charge pump 1 peak  
sink current  
FM weather band mode;  
0.4 V < VCPOUT < 7.6 V  
200  
400  
0.7  
300  
300  
1
400  
200  
1.3  
µA  
µA  
mA  
Isource(cp1)l  
Isink(cp1)h  
low charge pump 1 peak  
source current  
FM weather band mode;  
0.4 V < VCPOUT < 7.6 V  
high charge pump 1 peak AM stereo mode; N2 = 10  
sink current  
(LW and MW);  
0.4 V < VCPOUT < 7.6 V  
Isource(cp1)h  
high charge pump 1 peak AM stereo mode; N2 = 10  
1.3  
1  
0.7  
mA  
source current  
(LW and MW);  
0.4 V < VCPOUT < 7.6 V  
Isink(cp2)  
charge pump 2 peak sink FM standard mode;  
100  
160  
5  
130  
130  
160  
100  
+5  
µA  
µA  
nA  
current  
0.3 V < VCPOUT < 7.1 V  
Isource(cp2)  
charge pump 2 peak  
source current  
FM standard mode;  
0.3 V < VCPOUT < 7.1 V  
IZ(cp1), IZ(cp2) charge pump 1 or 2  
current in 3-state  
0 < VCPOUT < 8.5 V  
2001 Apr 12  
13  
Philips Semiconductors  
Product specification  
New In Car Entertainment (NICE) car radio  
TEA6845AH; TEA6845H  
SYMBOL  
PARAMETER  
CONDITIONS  
MIN.  
TYP.  
MAX.  
UNIT  
CHARGE PUMP: PIN Vtune  
Isink(cp3)  
Isource(cp3)  
IZ(cp3)  
charge pump 3 peak sink FM standard mode;  
2.1  
3
3.9  
mA  
current  
0.4 V < Vtune < 7.6 V  
charge pump 3 peak  
source current  
FM standard mode;  
0.4 V < Vtune < 7.6 V  
3.9  
5  
3  
2.1  
mA  
nA  
charge pump 3 current in 0 < Vtune < 8.5 V  
3-state  
+5  
Antenna Digital Auto Alignment (DAA)  
DAA INPUT: PIN DAAIN  
Ibias(cp)  
charge pump buffer input FM mode;  
10  
10  
0
+10  
+10  
8.5  
nA  
nA  
V
bias current  
0.4 V < VDAAIN < 8.0 V  
AM mode;  
0 V < VDAAIN < 8.5 V  
Vi(cp)  
charge pump buffer input  
voltage  
DAA OUTPUT: PIN DAAOUT; note 2  
Vo(AM)  
DAA output voltage in  
AM mode  
0.3  
V
Vo(FM)  
DAA output voltage in  
FM mode  
VDAAIN = 4.0 V;  
VDAATD = 0.7 V  
minimum value  
0.5  
1.8  
4.2  
V
V
V
bits DAA[6:0] set to logic 0 1.5  
1.65  
4
value: data  
3.8  
byte 3 = 10101011  
maximum value;  
bits DAA[6:0] set to logic 1  
8
8.5  
6.8  
V
V
VDAAIN = 3.0 V;  
6.2  
6.5  
VDAATD = 0.7 V; bits DAA[6:0]  
set to logic 1  
VDAAIN = 2 V  
data byte 3 = 11010101  
data byte 3 = 10101010  
3
3.3  
2
3.6  
2.2  
100  
V
1.8  
V
Vo(n)  
DAA output noise voltage FM mode; VDAAIN = 4 V;  
data byte 3: bit 6 = 1,  
30  
µV  
bits 5 to 0 = 0;  
B = 300 Hz to 15 kHz  
Vo (T)  
DAA output voltage  
variation with temperature data byte 3 = 10101011;  
VDAATD = 0.7 V  
Tamb = 40 to +85 °C;  
8  
+8  
mV  
mV  
Vo (step)  
DAA step accuracy  
FM mode; VDAAOUT < 8.0 V;  
n = 0 to 127  
0.5VLSB  
VLSB  
1.5VLSB  
Io(sink)  
DAA output sink current  
0.2 V < VDAAOUT < 8.25 V  
50  
µA  
µA  
Io(source)  
DAA output source current  
50  
2001 Apr 12  
14  
Philips Semiconductors  
Product specification  
New In Car Entertainment (NICE) car radio  
TEA6845AH; TEA6845H  
SYMBOL  
tst  
PARAMETER  
CONDITIONS  
MIN.  
TYP.  
MAX.  
UNIT  
µs  
DAA output settling time  
0.2 V < VDAAOUT < 8.25 V;  
CL = 270 pF  
30  
RR  
CL  
ripple rejection  
fripple = 100 Hz; VDDA4 = 1 mV  
VDAAOUT < 8.0 V; FM mode  
50  
dB  
pF  
DAA output load  
capacitance  
270  
DAA TEMPERATURE COMPENSATION: PIN DAATD  
Isource  
compensation diode  
source current  
0.2 V < VDAATD < 1.5 V  
50  
40  
30  
µA  
TCsource  
temperature coefficient of 0.2 V < VDAATD < 1.5 V;  
3 × 1010  
+3 × 1010 K1  
compensation diode  
source current  
Tamb = 40 to +85 °C  
IF counter (FM IF or AM IF2 counter)  
NIF  
IF counter length for  
AM and FM  
8
bit  
Tcount(IF)  
IF counter period  
data byte 4: bit 7 = 1  
data byte 4: bit 7 = 0  
data byte 4: bit 3 = 1  
data byte 4: bit 3 = 0  
2
ms  
ms  
20  
10  
100  
Rprecount  
FM IF counter prescaler  
ratio  
Reference frequency for car sound processor IC; note 3  
REFERENCE FREQUENCY DIVIDER  
Nref  
crystal oscillator divider  
ratio  
272  
fref  
reference frequency  
fxtal = 20.5 MHz  
75.368  
kHz  
mV  
VOLTAGE GENERATOR; PIN fref  
Vo(p-p)  
AC output voltage  
60  
100  
170  
(peak-to-peak value)  
VO  
DC output voltage  
3.2  
3.4  
3.9  
50  
V
Ro  
output resistance  
kΩ  
MΩ  
RL(min)  
minimum load resistance  
1
AM signal channel  
AM RF AGC STAGE INPUTS: PINS AMMIX1IN1 AND AMMIX1IN2  
Vi(p)  
RF input voltage for AGC data byte 5: bit 5 = 0, bit 6 = 0  
150  
275  
400  
525  
mV  
mV  
mV  
mV  
start level (peak value)  
data byte 5: bit 5 = 1, bit 6 = 0  
data byte 5: bit 5 = 0, bit 6 = 1  
data byte 5: bit 5 = 1, bit 6 = 1  
AM IF AGC STAGE INPUTS: PINS AMIF2IN AND AMIF2DEC  
Vi(p)  
IF2 input voltage (peak  
value)  
AGC start level  
0.20  
0.27  
15  
0.35  
V
AM RF AGC CURRENT GENERATOR OUTPUT: PIN IAMAGC  
Isink(max)  
maximum AGC sink  
current  
VAMMIX1IN1 > 500 mV  
(peak value)  
mA  
2001 Apr 12  
15  
Philips Semiconductors  
Product specification  
New In Car Entertainment (NICE) car radio  
TEA6845AH; TEA6845H  
SYMBOL  
Ro  
Co  
PARAMETER  
CONDITIONS  
IIAMAGC = 1 µA  
MIN.  
TYP.  
MAX.  
UNIT  
output resistance  
1
MΩ  
output capacitance  
5
7
pF  
AM RF AGC PEAK DETECTOR: PIN T2AMAGC  
Iatt  
attack current AGC peak  
detector  
data byte 5: bit 5 = 1,  
bit 6 = 1;  
AM mixer 1 input Vi = 1 V;  
VT2AMAGCGND = 3 V;  
VAMIF2INAMIF2DEC = 0 V  
3.15  
2.6  
mA  
Idec  
decay current AGC peak  
detector  
data byte 5: bit 5 = 1,  
bit 6 = 1;  
µA  
AM mixer 1 input Vi = 0 V;  
VT2AMAGCAMMIN1IN2 = 0.25 V;  
VT2AMAGCGND = 3 V;  
VAMIF2INAMIF2DEC = 0 V  
AM MIXER 1 (IF1 = 10.7 MHZ)  
Mixer inputs: pins AMMIX1IN1and AMMIX1IN2  
Ri  
input resistance  
input capacitance  
DC input voltage  
note 4  
note 4  
50  
70  
5
100  
7
kΩ  
pF  
V
Ci  
VI  
2.3  
2.7  
3.1  
Vi(max)  
maximum voltage on  
pin AMMIX1IN1  
1 dB compression point of  
AM mixer 1 output  
(peak-to-peak)  
500  
mV  
Mixer outputs: pins MIX1OUT1 and MIXOUT2  
Ro  
output resistance  
note 5  
note 5  
100  
7
kΩ  
pF  
V
Co  
output capacitance  
5
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
IMIXOUT1  
---------------------------------------------------  
VFMMIXIN1 FMMIXIN2  
gm(conv)(T)  
conversion  
9 × 104  
K1  
transconductance  
variation with temperature  
gm(conv)  
--------------------------------  
g
m(conv) × ∆T  
IP3  
IP2  
3rd-order intermodulation RL = 2.8 k(AC load between 135  
138  
170  
dBµV  
dBµV  
output pins)  
2nd-order intermodulation RL = 2.8 k(AC load between  
output pins)  
2001 Apr 12  
16  
Philips Semiconductors  
Product specification  
New In Car Entertainment (NICE) car radio  
TEA6845AH; TEA6845H  
SYMBOL  
PARAMETER  
CONDITIONS  
MIN.  
TYP.  
5.8  
MAX.  
UNIT  
Vi(n)(eq)  
equivalent input noise  
voltage  
band limited noise;  
Rgen = 750 ; RL = 2.8 kΩ  
(AC load between output pins)  
nV  
-----------  
Hz  
F
noise figure of AM mixer 1  
4.5  
7.1  
dB  
WEATHER BAND FLAG: PIN T1AMAGC  
IL(max)  
maximum load current  
5  
+5  
µA  
Vo(max)  
maximum output voltage  
for FM mode  
measured with respect to  
pin RFGND  
0
0.5  
V
Vo(min)  
minimum output voltage  
for WX mode  
measured with respect to  
pin RFGND  
5.1  
6.0  
6.9  
V
AM MIXER 2 (IF2 = 450 KHZ)  
Mixer inputs: pins IFAMP1IN and IFAMP1DEC  
Ri  
input resistance  
input capacitance  
DC voltage  
note 6  
note 6  
270  
330  
5
390  
7
pF  
V
Ci  
VI  
2.4  
1.1  
2.7  
3
Vi(max)(p)  
maximum input voltage  
(peak value)  
1 dB compression point of  
AM mixer 2 output  
(peak-to-peak)  
V
Mixer outputs: pins AMMIX2OUT1 and AMMIXOUT2  
R0  
output resistance  
note 7  
100  
7
kΩ  
pF  
V
Co  
output capacitance  
note 7  
5
Vo(max)(p-p)  
maximum output voltage  
(peak-to-peak value)  
VDDA = 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
IAMMIX2OUT1  
------------------------------  
VIFAMP1IN  
gm(conv)(T)  
conversion  
9 × 104  
K1  
transconductance  
variation with temperature  
gm(conv)  
--------------------------------  
g
m(conv) × ∆T  
IP3  
3rd-order intermodulation RL = 4 k(AC load between  
134  
137  
170  
15  
dBµV  
dBµV  
output pins)  
IP2  
2nd-order intermodulation RL = 4 k(AC load between  
output pins)  
Vi(n)(eq)  
equivalent input noise  
voltage  
Rgen = 330 ; RL = 4 kΩ  
(AC load between output pins)  
22  
nV  
-----------  
Hz  
F
noise figure of AM mixer 2  
16  
19.5  
dB  
2001 Apr 12  
17  
Philips Semiconductors  
Product specification  
New In Car Entertainment (NICE) car radio  
TEA6845AH; TEA6845H  
SYMBOL  
PARAMETER  
CONDITIONS  
MIN.  
TYP.  
MAX.  
UNIT  
AM IF2 AGC STAGE: PINS AMIF2IN AND AMIF2DEC; note 8  
Vi  
input voltage  
for α = 10 dB audio  
attenuation  
AM soft mute on  
AM soft mute off  
1
75  
6
120  
µV  
10  
30  
µV  
µV  
V
VAGC(start)  
VAGC(stop)  
VAGC(ctrl)  
AGC  
AGC start voltage  
AGC stop voltage  
AGC control voltage  
AGC range  
input carrier voltage  
maximum input peak voltage  
Vi = 1 mV  
14  
4.1  
4.3  
89  
4.7  
V
between start and stop of  
AGC; m = 0.8  
dB  
Ri  
Ci  
input resistance  
1.8  
2
2.2  
5
kΩ  
input capacitance  
pF  
AM DETECTOR  
Vsens(rms)  
sensitivity voltage  
(RMS value)  
m = 0.3; fmod = 400 Hz;  
BAF = 2.5 kHz; Rgen = 2 k;  
note 8  
(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;  
54  
BAF = 2.5 kHz; Rgen = 2 kΩ  
total harmonic distortion  
BAF = 2.5 kHz; CAGC = 22 µF;  
AM IF2 AGC input  
Vi = 100 µV to 500 mV (RMS)  
m = 0.8; fmod = 400 Hz  
m = 0.9; fmod = 400 Hz  
m = 0.8; fmod = 100 Hz  
m = 0.9; fmod = 100 Hz  
0.5  
1
1
%
%
%
%
dB  
2
1.25  
1.75  
40  
2.5  
3.5  
RR  
ripple rejection  
VDDA2(ripple) = 100 mV (RMS); 30  
fripple = 100 Hz;  
tsw  
FM to AM switching time  
AM AGC settling time  
CAGC = 22 µF  
CAGC = 22 µF  
normal operation  
test mode  
1000  
1500  
ms  
tsettle  
1800  
180  
ms  
ms  
Output: pin AMAFIF2  
Vo(rms)  
AM IF2 output voltage  
AM stereo; m = 0  
(RMS value)  
minimum at Vi = 14 µV  
maximum at Vi = 5.0 mV  
1.5  
3
4.5  
mV  
mV  
mV  
130  
240  
180  
290  
230  
340  
AM mono; m = 0.3;  
fmod = 400 Hz;  
Vi = 100 µV to 500 mV (RMS)  
Ro  
output resistance  
AM stereo  
AM mono  
500  
500  
2001 Apr 12  
18  
Philips Semiconductors  
Product specification  
New In Car Entertainment (NICE) car radio  
TEA6845AH; TEA6845H  
SYMBOL  
Co  
PARAMETER  
CONDITIONS  
AM mono  
MIN.  
TYP.  
MAX.  
UNIT  
pF  
output capacitance  
5
7
7
AM IF2 LEVEL DETECTOR OUTPUT: PIN Vlevel; see Fig.3  
Vlevel  
DC output voltage  
Vi = 10 µV to 1 V  
0
V
V
Vi < 1 µV; standard setting of 0.1  
level DAA and level slope  
0.5  
2.2  
40  
0.9  
2.8  
50  
Vi = 1.4 mV; standard setting 1.6  
of level DAA  
V
Vlevel  
step size for adjustment of standard setting of level slope 30  
level starting point  
mV  
Vlevel(slope)  
slope of level voltage  
standard setting of level slope 650  
800  
950  
mV  
---------------  
20 dB  
Vstep  
step size for adjustment of Vi =1.4 mV  
level starting point  
45  
60  
75  
mV  
---------------  
20 dB  
Blevel  
bandwidth of level output  
voltage  
200  
300  
mV  
Ro  
output resistance  
500  
RR  
ripple rejection  
VDDA1(ripple) = 100 mV (RMS);  
40  
dB  
fripple = 100 Hz;  
AM NOISE BLANKER; see Fig.4  
Threshold: pin AMNBHOLD  
VO  
DC output voltage  
suppression time  
4.3  
6
4.6  
5.1  
10  
V
tsup  
7.5  
µs  
Hz  
ftrigger  
trigger sensitivity  
frequency  
Vp = 200 mV (peak);  
Vlevel < 1.8 V  
1000  
Vp = 200 mV (peak);  
Vlevel > 2.2 V  
100  
100  
Hz  
Hz  
Vp = 20 mV (peak)  
Noise detector output: pin TRDSMUTE  
Isink(AGC)  
AM noise blanker AGC  
sink current  
VTRDSMUTE = 3 V  
35  
50  
65  
µA  
VAGC  
AM noise blanker AGC  
voltage  
AM mixer 1 input Vi = 0 V  
1.9  
2.2  
2.5  
V
FM signal channel  
FM RF AGC  
Inputs: pins FMMIXIN1 and FMMIXIN2; note 9  
Vi(RF)(rms)  
RF input voltage for start  
of wide-band AGC  
(RMS value)  
data byte 5: bit 5 = 0, bit 6 = 0  
data byte 5: bit 5 = 1, bit 6 = 0  
data byte 5: bit 5 = 0, bit 6 = 1  
data byte 5: bit 5 = 1, bit 6 = 1  
4
mV  
mV  
mV  
mV  
8
12  
16  
2001 Apr 12  
19  
Philips Semiconductors  
Product specification  
New In Car Entertainment (NICE) car radio  
TEA6845AH; TEA6845H  
SYMBOL  
PARAMETER  
CONDITIONS  
MIN.  
TYP.  
MAX.  
UNIT  
AGC peak detector output: pin T1FMAGC  
Ich  
charge current  
350  
600  
850  
µA  
Idis  
discharge current  
15  
25  
35  
µA  
PIN diode drive output: pin IFMAGC  
Idrive drive current  
Level voltage output: pin Vlevel  
Vo = 0.5 to 4.0 V  
8
11.5  
950  
15  
mA  
mV  
Vth  
threshold voltage for  
narrow-band AGC  
data byte 5: bit 7 = 1;  
standard setting of level DAA  
500  
1400  
FM RF MIXER  
Reference voltage: pin Vref(FMMIX)  
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 9  
Vi(RF)(max)  
maximum RF input  
voltage  
1 dB compression point of  
FM mixer output voltage  
(peak-to-peak value)  
70  
100  
2.6  
mV  
Vi(n)(eq)  
equivalent input noise  
voltage  
Rgen = 600 ; RL = 2.8 k;  
noise of Rgen not included  
3.1  
nV  
-----------  
Hz  
Ri  
Ci  
input resistance  
1.4  
5
kΩ  
input capacitance  
7
pF  
Outputs: pins MIX1OUT1 and MIX1OUT2; note 5  
Ro  
output resistance  
output capacitance  
mixer bias current  
100  
5
6
kΩ  
pF  
mA  
V
Co  
7
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 × 103  
K1  
transconductance  
variation with temperature  
F
noise figure  
3
4.6  
dB  
IP3  
IRR  
3rd-order intermodulation  
image rejection ratio  
116  
25  
119  
30  
dBµV  
dB  
IF AMPLIFIER 1  
G
gain  
RL = 330 ; Vi = 1 mV;  
13.5  
15.5  
17.5  
dB  
note 10  
F
noise figure  
10  
13  
dB  
IP3  
3rd-order intermodulation  
117  
120  
dBµV  
2001 Apr 12  
20  
Philips Semiconductors  
Product specification  
New In Car Entertainment (NICE) car radio  
TEA6845AH; TEA6845H  
SYMBOL  
PARAMETER  
CONDITIONS  
MIN.  
TYP.  
MAX.  
UNIT  
Inputs: pins IFAMP1IN and IFAMP1DEC; note 10  
Vi(max)(p)  
maximum input voltage  
(peak value)  
1 dB compression point of  
IF amplifier 1 output voltage  
(peak value)  
200  
mV  
Vi(n)(eq)  
equivalent input noise  
voltage  
Rgen = 330 ; RL = 330 ;  
noise of Rgen not included  
8
10  
nV  
-----------  
Hz  
Ri  
Ci  
input resistance  
270  
330  
5
390  
7
input capacitance  
pF  
Output: pin IFAMP1OUT  
Ro  
output resistance  
270  
330  
5
390  
7
Co  
output capacitance  
pF  
V
Vo(max)(p)  
maximum output voltage  
(peak value)  
1.2  
1.5  
IF AMPLIFIER 2  
G
gain  
RL = 330 ; Vi = 1 mV;  
6.5  
8.5  
10.5  
dB  
note 11  
F
noise figure  
13  
15  
dB  
IP3  
3rd-order intermodulation  
127  
130  
dBµV  
Inputs: pins IFAMP2IN and IFAMP2DEC; note 11  
Vi(max)(p)  
maximum input voltage  
(peak value)  
1 dB compression point of  
IF amplifier 2 output voltage  
(peak value)  
500  
mV  
Vi(n)(eq)  
equivalent input noise  
voltage  
Rgen = 330 ; RL = 330 ;  
noise of Rgen not included  
10  
13  
nV  
-----------  
Hz  
Ri  
Ci  
input resistance  
270  
330  
5
390  
7
input capacitance  
pF  
Output: pin IFAMP2OUT  
Ro  
output resistance  
270  
330  
5
390  
7
Co  
output capacitance  
pF  
V
Vo(max)(p)  
maximum output voltage  
(peak value)  
1.2  
1.5  
FM demodulator and level detector; see Figs 5 and 6  
FM LIMITER  
Inputs: pins FMLIMIN and FMLIMDEC; note 12  
G
Ri  
Ci  
gain  
Rgen = 50 Ω  
74  
270  
80  
330  
5
dB  
kΩ  
pF  
input resistance  
input capacitance  
390  
7
Outputs: pins QDET1 and QDET2  
Vo(p-p)  
output voltage  
(peak-to-peak value)  
measured between output  
pins  
500  
700  
mV  
2001 Apr 12  
21  
Philips Semiconductors  
Product specification  
New In Car Entertainment (NICE) car radio  
TEA6845AH; TEA6845H  
SYMBOL  
PARAMETER  
CONDITIONS  
MIN.  
TYP.  
MAX.  
UNIT  
FM DEMODULATOR  
Limiter decoupling: pin FMLIMDEC  
RL  
CL  
load resistance  
20  
kΩ  
load capacitance  
50  
pF  
RDS MPX inputs: pins FMLIMIN and FMLIMDEC; note 12  
Vstart(lim)(rms) start of limiting of RDS  
MPX output voltage  
αAF = 3 dB  
10  
15  
µV  
(RMS value)  
RDS MPX output: pin QRDSMPX  
Vo(rms)  
RDS MPX output voltage f = 22.5 kHz; fmod = 57 kHz; 180  
230  
280  
100  
mV  
(RMS value)  
Vi = 20 µV to 1 V; note 12  
Io(max)  
maximum RDS MPX  
output current  
µA  
Ro  
B
output resistance  
500  
bandwidth RDS MPX  
output  
CL = 0; RL > 20 kΩ  
200  
300  
kHz  
PSRR  
power supply ripple  
rejection  
fripple = 100 Hz to 20 kHz  
40  
10  
dB  
FM RDS inputs: pins FMLIMIN and FMLIMDEC; note 12  
Vstart(lim)(rms) start of limiting of MPX  
output voltage  
αAF = 3 dB  
15  
µV  
(RMS value)  
Vo(sens)(rms) sensitivity for MPX output f = 22.5 kHz; fmod = 1 kHz;  
voltage (RMS value)  
de-emphasis = 75 µs  
(S+N)/N = 26 dB  
(S+N)/N = 46 dB  
10  
50  
15  
75  
µV  
µV  
FM MPX output: pin FMMPX; note 12  
Vo(rms)  
MPX output voltage  
(RMS value)  
f = 22.5 kHz; fmod = 1 kHz;  
de-emphasis = 75 µs;  
Vi = 20 µV to 1 V;  
180  
230  
280  
mV  
αAM  
AM suppression of MPX  
output  
f = 22.5 kHz; fmod = 1 kHz;  
m = 0.3; de-emphasis = 75 µs  
Vi = 500 µV to 300 mV  
Vi = 20 to 500 µV  
50  
60  
40  
40  
dB  
dB  
dB  
µA  
Vi = 300 mV to 1 V  
Io(max)  
maximum MPX output  
current  
100  
(S+N)/N  
maximum signal plus  
noise-to-noise ratio of  
MPX output voltage  
f = 22.5 kHz; fmod = 1 kHz;  
de-emphasis = 75 µs;  
Vi = 10 mV;  
67  
70  
dB  
%
THD  
total harmonic distortion of f = 75 kHz; fmod = 1 kHz;  
0.35  
0.7  
MPX output voltage  
de-emphasis = 75 µs;  
Vi = 200 µV to 800 mV  
2001 Apr 12  
22  
Philips Semiconductors  
Product specification  
New In Car Entertainment (NICE) car radio  
TEA6845AH; TEA6845H  
SYMBOL  
PARAMETER  
CONDITIONS  
CL = 0; RL > 20 kΩ  
MIN.  
200  
TYP.  
MAX.  
UNIT  
kHz  
dB  
B
bandwidth MPX output  
PSRR  
power supply ripple  
rejection  
fripple = 100 Hz to 20 kHz  
40  
RL(min)  
Ro(max)  
minimum load resistance  
20  
kΩ  
maximum output  
resistance  
500  
CL(max)  
maximum load  
capacitance  
50  
pF  
MPX MUTE  
αmute  
muting depth  
during RDS update  
CTRDSMUTE = 10 nF  
CTRDSMUTE = 10 nF  
60  
80  
1
dB  
ms  
ms  
tatt  
attack time MPX mute  
decay time MPX mute  
0.75  
0.75  
1.25  
1.25  
tdecay  
1
RDS update: pin TRDSMUTE  
Idis  
Ich  
discharge current  
charge current  
Vo = 3 V; audio output muted 24  
32  
38  
µA  
µA  
Vo = 3 V; audio output not  
muted  
24  
32  
38  
DEMODULATOR AFC  
GAFC  
AFC gain  
f = 100 kHz  
28  
32  
dB  
RDS MPX output: pin RDSMPX; note 12  
Voffset(DC)  
residual DC offset voltage Ldemod = typical value  
Vi = 10 to 80 µV  
0.1  
10  
1
V
Vi = 80 µV to 800 mV  
Ldemod = ±6%  
30  
mV  
Vi = 10 to 80 µV  
0.240  
25  
1
V
Vi = 80 µV to 800 mV  
500  
mV  
FM IF LEVEL DETECTOR OUTPUT: PIN Vlevel; note 12  
Vlevel  
DC output voltage  
Vi = 10 µV to 1 V  
0
7
V
V
Vi < 1 µV; standard setting of 0.2  
0.6  
1.1  
level DAA  
Vi = 1 mV; standard setting of 1.4  
level DAA  
1.9  
40  
2.5  
50  
V
Vlevel  
level starting point for  
adjustment of step size  
standard setting of level slope 30  
mV  
Vlevel(slope)  
slope of level voltage  
standard setting of level slope 650  
800  
950  
mV  
---------------  
20 dB  
Vstep  
level slope adjustment of  
step size  
Vi = 1 mV  
45  
50  
75  
mV  
---------------  
20 dB  
Vlevel(B)  
Ro  
bandwidth of level output Vi = 10 mV; fmod = 22.5 kHz;  
200  
300  
mV  
voltage  
standard setting of DAA  
output resistance  
500  
2001 Apr 12  
23  
Philips Semiconductors  
Product specification  
New In Car Entertainment (NICE) car radio  
TEA6845AH; TEA6845H  
SYMBOL  
RR  
PARAMETER  
ripple rejection  
CONDITIONS  
MIN.  
TYP.  
40  
MAX.  
UNIT  
dB  
V
DDA1(ripple) = 100 mV (RMS);  
fripple = 100 Hz  
RDS update  
Output: pin AFHOLD  
Isink(max) maximum sink current  
after first bus transmission  
with AF = 1 (start of RDS  
update); Vo = 0.5 V  
1.0  
1.0  
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  
Test mode; note 3  
Temperature compensation diode: pin DAATD  
Vi(ext)  
external input voltage to  
clock state machine  
VDAATD(L) = 2.5 V;  
DAATD(H) = 3.5 V  
2.5  
0
6
3.5  
5
V
V
V
V
Clock input: pin SCL  
Vi(ext) external input voltage to  
clock DAA  
Time constant output: pin T1AMAGC  
VSCL(L) = 0 V; VSCL(H) = 5 V  
Vpulse  
enabling voltage of load  
PLL signal  
pin fref in test mode  
5.1  
6.9  
Notes  
1. Measured between pins XTAL1 and XTAL2.  
n
2. DAA conversion gain formula: VDAAOUT  
=
2 × 0.75 ×  
+ 0.25 × (VDAAIN + VDAATD) VDAATD  
---------  
128  
where n = 0 to 127.  
3. Reference frequency pin fref:  
a) Rext = 68 kconnected to ground, activates the 2nd I2C-bus address  
b) Rext = 100 kconnected to VDDA1, sets the IC into test mode.  
4. Input parameters of AM mixer 1 measured between pins AMMIX1IN1 and AMMIX1IN2.  
5. Output parameters of FM mixer and AM mixer 1 measured between pins MIX1OUT1 and MIX1OUT2.  
6. Input parameters of AM mixer 2 measured between pins IFAMP1IN and IFAMP1DEC.  
7. Output parameters of AM mixer 2 measured between pins AMMIX2OUT1 and AMMIX2OUT2.  
8. Input parameters of AM IF2 measured between pins AMIF2IN and AMIF2DEC.  
9. Input parameters of FM mixer measured between pins FMMIXIN1 and FMMIXIN2.  
10. Input parameters of IF amplifier 1 measured between pins IFAMP1IN and IFAMP1DEC.  
11. Input parameters of IF amplifier 2 measured between pins IFAMP2IN and IFAMP2DEC.  
12. Input parameters of FM limiter measured between pins FMLIMIN and FMLIMDEC.  
2001 Apr 12  
24  
Philips Semiconductors  
Product specification  
New In Car Entertainment (NICE) car radio  
TEA6845AH; TEA6845H  
MHB484  
6
V
level  
(V)  
5
4
(1)  
3
(2)  
2
(3)  
1
0
3  
2  
1  
2
3
10  
10  
10  
10  
10  
1
10  
V (mV)  
i
(1) Level DAA setting byte 6 = FFH.  
(2) Level DAA setting byte 6 = 84H (standard setting).  
(3) Level DAA setting byte 6 = 00H.  
Vi = VAMIF2IN VAMIF2DEC  
Fig.3 AM level output voltage (DAA) as a function of AM level circuit input voltage.  
T
58  
59  
61  
rep  
V
level  
V
P
TEA6845AH  
TEA6845H  
3 V  
1 k  
1 kΩ  
64  
63  
test signal  
8.5 V  
16 17  
13  
4.7 nF  
oscilloscope,  
counter  
50 Ω  
100 Ω  
100 Ω  
MHB876  
4 V  
V
P
8.5 V  
Test signal: Trep = 2 ms, tr < 50 ns, tf < 50 ns, and duty factor 50%.  
Fig.4 Test circuit for AM noise blanker.  
25  
2001 Apr 12  
Philips Semiconductors  
Product specification  
New In Car Entertainment (NICE) car radio  
TEA6845AH; TEA6845H  
MHB486  
6
V
level  
(V)  
5
(1)  
(2)  
4
3
2
1
0
(3)  
3  
2  
1  
2
3
10  
10  
10  
10  
10  
1
10  
V (mV)  
i
(1) Level DAA setting byte 6 = FFH.  
(2) Level DAA setting byte 6 = 84H (standard setting).  
(3) Level DAA setting byte 6 = 00H.  
Vi = VFMLIMIN VFMLIMDEC  
.
Fig.5 FM level output voltage (DAA) as a function of FM limiter and level circuit input voltage.  
2001 Apr 12  
26  
Philips Semiconductors  
Product specification  
New In Car Entertainment (NICE) car radio  
TEA6845AH; TEA6845H  
MHB487  
9
10  
FMMPX  
RDSMPX  
V
,
V
level  
V
(V)  
(dB)  
0
8
(1)  
THD  
(%)  
10  
20  
30  
40  
50  
60  
70  
80  
7
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)  
i
(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.  
Vi = VFMLIMIN VFMLIMDEC  
.
(5) Level for standard setting of level DAA, byte 6 = 84H.  
Fig.6 (S+N)/N, THD and level output voltage for FM mode as a function of FM demodulator input voltage.  
2001 Apr 12  
27  
Philips Semiconductors  
Product specification  
New In Car Entertainment (NICE) car radio  
TEA6845AH; TEA6845H  
12 I2C-BUS PROTOCOL  
12.1.3 I2C-bus pULL-UP RESISTORS  
12.1 I2C-bus specification  
When the IC is used together with the TEA6880H or  
TEF6890H and both SCL and SDA lines are connected via  
the I2C-bus to the TEA6880H or TEF6890H, the pull-up  
resistors of the tuner IC should be connected to the digital  
supply voltage of the TEA6880H or TEF6890H. Otherwise  
an I2C-bus pull-down can occur switching off the tuner IC  
supply when the I2C-bus buffer interface of the TEA6880H  
or TEF6890H 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 C2: 1100001  
2nd IC address C0: 1100000.  
12.1.4 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.  
12.1.1 TEST MODE  
First: bit MUTE = 1  
Second: bit MUTE = 0.  
Connecting pin fref to VDDA1 via a 100 kresistor or  
feeding 50 µA into that pin switches the IC into the test  
mode.  
During test mode the digital-to-analog converters of the  
level and antenna DAA functions can be sequenced by the  
I2C-bus SCL line.  
During test mode either the TEA6880H or TEF6890H  
reference frequency, the PLL reference frequency divider  
or the programmable divider output can be switched to  
pin fref.  
12.1.2 DATA TRANSFER FOR THE TEA6845  
Data sequence: address, byte 1, byte 2, byte 3, byte 4,  
byte 5, and byte 6. The data transfer has to be in this  
order. The LSB = 0 indicates a WRITE operation to the  
TEA6845.  
Bit 7 of each byte is considered the MSB and has to be  
transferred as the first bit of the byte.  
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.  
When writing to the transceiver by using the STOP  
condition before completion of the whole transfer:  
The remaining bytes will contain the old information  
If the transfer of a byte is not completed, this byte is lost  
and the previous information is available.  
In byte 5, 4 bits are reserved for test mode purposes.  
Those can only be used when the test mode is activated  
by the select pin fref.  
2001 Apr 12  
28  
Philips Semiconductors  
Product specification  
New In Car Entertainment (NICE) car radio  
TEA6845AH; TEA6845H  
12.2 I2C-bus protocol  
12.2.1 DATA TRANSFER MODE AND IC ADDRESS  
Table 1 Write mode  
S(1)  
address (write)  
A(2)  
data byte(s)  
A(2)  
P(3)  
Table 2 Read mode  
S(1)  
address (read)  
A(2)  
data byte 1  
Notes to Tables 1 and 2  
1. S = START condition.  
2. A = acknowledge.  
3. P = STOP condition.  
Table 3 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 TEA6840H  
b) 1 = read operation from TEA6840H.  
12.2.2 WRITE MODE: DATA BYTE 1  
Table 4 Format of data byte 1  
BIT 7  
BIT 6  
BIT 5  
BIT 4  
BIT 3  
BIT 2  
BIT 1  
BIT 0  
AF  
PCA6  
PCA5  
PCA4  
PCA3  
PCA2  
PCA1  
PCA0  
Table 5 Description of data byte 1 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  
PCA[6:0]  
Setting of programmable counter of synthesizer PLL. Upper byte of PLL divider  
word.  
2001 Apr 12  
29  
Philips Semiconductors  
Product specification  
New In Car Entertainment (NICE) car radio  
TEA6845AH; TEA6845H  
12.2.3 WRITE MODE: DATA BYTE 2  
Table 6 Format of data byte 2  
BIT 7  
BIT 6  
BIT 5  
BIT 4  
BIT 3  
BIT 2  
BIT 1  
BIT 0  
PCB7  
PCB6  
PCB5  
PCB4  
PCB3  
PCB2  
PCB1  
PCB0  
Table 7 Description of data byte 2 bits  
BIT  
SYMBOL  
DESCRIPTION  
7 to 0  
PCB[7:0]  
Setting of programmable counter of synthesizer PLL. Lower byte of PLL divider  
word.  
12.2.4 WRITE MODE: DATA BYTE 3  
Table 8 Format of data byte 3  
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 9 Description of data byte 3 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 enabled.  
6 to 0  
DAA[6:0]  
Setting of antenna digital auto alignment.  
12.2.5 WRITE MODE: DATA BYTE 4  
Table 10 Format of data byte 4  
BIT 7  
BIT 6  
BIT 5  
BIT 4  
BIT 3  
BIT 2  
BIT 1  
BIT 0  
IFMT  
RFS2  
RFS1  
RFS0  
IFPR  
BND1  
BND0  
AMFM  
Table 11 Description of data byte 4 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  
RFS[2:0]  
IFPR  
Reference frequency for synthesizer. These 3 bits determine the reference  
frequency, see Table 12.  
3
2 and 1  
0
IF counter prescaler ratio. If IFPR = 0, then IF prescaler ratio is 100. If IFPR = 1, then  
IF prescaler ratio is 10.  
BND[1:0]  
AMFM  
Band switch. These 2 bits select in FM mode band and local or distant, see Table 13;  
in AM mode band and AM stereo, see Table 14.  
AM or FM switch. If AMFM = 0, then FM mode. If AMFM = 1, then AM mode  
2001 Apr 12  
30  
Philips Semiconductors  
Product specification  
New In Car Entertainment (NICE) car radio  
TEA6845AH; TEA6845H  
Table 12 Reference frequency setting  
RFS2  
RFS1  
RFS0  
f
ref (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 13 FM mode  
BND1  
BND0  
SELECTION  
0
0
FM standard: dead zone high current charge pump active,  
FM AGC defined by RF level and threshold level setting by  
I2C-bus  
0
1
1
1
0
1
FM local: dead zone high current charge pump active,  
FM AGC source current set to maximum  
FM East Europe: dead zone high current charge pump  
switched off, current of low current charge pump set to 1 mA  
FM weather band: N1 divider set to 1 and I and Q phase shift  
network switched on, WX flag signal activated  
Table 14 AM mode; note 1  
BND1  
BND0  
SELECTION  
AM mono; N2 divider set to 5 (SW)  
AM stereo; N2 divider set to 5 (SW)  
AM mono; N2 divider set to 10 (LW, MW)  
AM stereo; N2 divider set to 10 (LW, MW)  
0
0
1
1
0
1
0
1
Note  
1. In AM mode dead zone high current charge pump switched off, current of low current charge pump set to 1 mA.  
2001 Apr 12  
31  
Philips Semiconductors  
Product specification  
New In Car Entertainment (NICE) car radio  
TEA6845AH; TEA6845H  
12.2.6 WRITE MODE: DATA BYTE 5  
Table 15 Format of data byte 5  
BIT 7  
BIT 6  
BIT 5  
BIT 4  
BIT 3  
BIT 2  
BIT 1  
BIT 0  
KAGC  
WBA1  
WBA0  
AMSM  
TMS3  
TMS2  
TMS1  
TMS0  
Table 16 Description of data byte 5 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  
WBA[1:0]  
AMSM  
Wide band AGC. These 2 bits set the start value of wide band AGC. For AM,  
see Table 17 and for FM, see Table 18.  
4
AM soft mute. If AMSM = 0, then AM soft mute is off. If AMSM = 1, then AM soft mute  
is on.  
3
2
TMS3  
In test mode charge pump 3-state. If TMS3 = 0, then 3-state off. If TMS3 = 1, then  
3-state on.  
TMS2  
In test mode external clock for level and antenna DAA. If TMS2 = 0, then external  
clock disabled. If TMS2 = 1, then external clock enabled.  
1 and 0  
TMS[1:0]  
In test mode setting of pin fref. These 2 bits define the function of pin fref,  
see Table 19.  
Table 17 Setting of wide band AGC for AM  
AM MIXER 1 INPUT VOLTAGE (PEAK VALUE)  
(mV)  
WBA1  
WBA0  
0
0
1
1
0
1
0
1
150  
275  
400  
525  
Table 18 Setting of wide band AGC for FM  
FM RF MIXER 1 INPUT VOLTAGE (RMS VALUE)  
(mV)  
WBA1  
WBA0  
1
1
0
0
1
0
1
0
4
8
12  
16  
Table 19 Setting function of pin fref in test mode  
TMS1  
TMS0  
OUTPUT AT PIN fref  
0
0
0
1
reference frequency of TEA6880H or TEF6890H  
tuner oscillator frequency divided by division ratio of  
programmable divider  
1
1
0
1
PLL synthesizer reference frequency  
not used (no output)  
2001 Apr 12  
32  
Philips Semiconductors  
Product specification  
New In Car Entertainment (NICE) car radio  
TEA6845AH; TEA6845H  
12.2.7 WRITE MODE: DATA BYTE 6  
Table 20 Format of data byte 6  
BIT 7  
BIT 6  
BIT 5  
BIT 4  
BIT 3  
BIT 2  
BIT 1  
BIT 0  
LST4  
LST3  
LST2  
LST1  
LST0  
LSL2  
LSL1  
LSL0  
Table 21 Description of data byte 6 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 22 Standard setting of data byte 6 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 READ MODE: DATA BYTE 1  
Table 23 Format of 1st data byte  
BIT 7  
BIT 6  
BIT 5  
BIT 4  
BIT 3  
BIT 2  
BIT 1  
BIT 0  
IFC7  
IFC6  
IFC5  
IFC4  
IFC3  
IFC2  
IFC1  
IFC0  
Table 24 Description of data byte 1 bits  
BIT  
SYMBOL  
DESCRIPTION  
7 to 0  
IFC[7:0]  
IF counter result. These bits contain the last eight bits of the IF counter result.  
2001 Apr 12  
33  
Philips Semiconductors  
Product specification  
New In Car Entertainment (NICE) car radio  
TEA6845AH; TEA6845H  
13 TEST AND APPLICATION INFORMATION  
A
V
tune  
B
Coils:  
f
5 V  
digital  
10 k  
2.2 kΩ  
1.2 kΩ  
ref  
L1: P826RC-5134N=S  
L2: PSGAE-5078D=S  
L3: P293BC-1977Z  
L4: E543SNAS-02010  
L5: 611SNS-1066Y  
L6: 369INS-3076X  
PLL  
3.3 nF  
22 Ω  
3.3  
µH  
3.9 nF  
DGND  
L7; 388BN-1211Z  
L8: air coil  
(1): 1 to 5 pF trimmer without DAA  
(2): series NP0  
antenna  
100 nF  
22 nF  
100 nF  
38  
34 35  
36  
37  
39  
33  
2.2  
MΩ  
32  
31  
ANTENNA  
DAA  
V
22 kΩ  
t
3.3 µH  
C
TUNING SYSTEM  
BAS16  
BB814  
D
E
AM  
L5  
120 nH  
10.25 MHz  
(1)  
270  
nH  
30  
29  
28  
8.2  
pF  
FM  
AGC  
1 µF  
1 µF  
F
TEA6845AH  
TEA6845H  
15 pF  
290 nH  
BA595  
BA595  
L8  
290 nH  
WX  
27  
26  
25  
L6  
N1  
×
8.2 pF  
FM  
÷2  
90°  
G
22 Ω  
330 Ω  
I/Q MIXER  
H
I
2.2 kΩ  
15 pF  
RFGND  
10 µF  
24  
AM-NOISE  
DETECTOR  
PEAK/  
AVERAGE  
1 nF  
1 nF  
90°  
22 nF  
J
5 V  
analog  
K
L
BAQ806  
1 kΩ  
23  
22  
21  
N2  
AM  
RF AGC  
100 nF  
÷5/10  
M
N
WB FLAG  
220 nF  
6.8  
µH  
560 Ω  
22 µF  
IFAMP1  
×
AM  
MIXER 1  
20  
22  
nF  
O
P
270  
100  
pF  
180  
µH  
150  
pF  
µH  
150 µH  
10  
nF  
1.8 MΩ  
1.5 kΩ  
19  
18  
17 16  
15 14  
13  
180  
pF  
22  
nF  
22  
nF  
100  
nF  
22  
nF  
10 nF  
470 pF  
1 nF  
BF861C  
2.2 MΩ  
SFE10.7  
MS3  
L7  
BAV99  
L1  
22 nF  
10  
kΩ  
47 Ω  
22 Ω  
22 Ω  
10 Ω  
Q
MHB878  
Fig.7 Application diagram (continued in Fig.8).  
34  
2001 Apr 12  
Philips Semiconductors  
Product specification  
New In Car Entertainment (NICE) car radio  
TEA6845AH; TEA6845H  
3.3 µH  
1 µH  
8.5 V  
A
(2)  
270 pF  
4.7 kΩ  
5 V  
analog  
AF  
AF  
AM  
RDS/  
FM  
MPX  
B
SAMPLE HOLD  
AUDIO/IF MPX  
L4  
BB156  
22 Ω  
100  
nF  
100 nF  
22 nF  
6.8 nF  
47 µF  
2.7 1.8  
pF pF  
47 µF  
47 µF  
40 41 42  
43  
44  
45  
46  
47  
48  
49  
50  
51  
SEQUENTIAL  
CIRCUIT FOR  
RDS UPDATING  
AM  
DETECTOR  
POWER  
SUPPLY  
VCO  
MUTE  
C
2
V
(I C-bus)  
DD  
D
E
2 ms/  
20 ms  
10  
kΩ  
10  
kΩ  
52  
FM IF  
AM IF2  
2
SDA  
SCL  
I C-bus  
IF  
COUNT  
2
I C-BUS  
53  
54  
F
IF2GND  
55  
56  
57  
AM  
IF AGC  
LEVEL  
DAA  
4.7  
kΩ  
L3  
DEMODULATOR  
G
AFC  
H
I
47 µF  
AM  
LEVEL  
BLANK  
PULSE  
Σ
58  
AM/FM  
LEVEL  
J
59  
60  
61  
K
L
FM  
LIMITER/  
LEVEL  
CRYSTAL  
OSCILLATOR  
20.5  
MHz  
×
AM  
M
N
MIXER2  
62  
120  
kΩ  
220  
nF  
IFAMP2  
O
P
L2  
63  
64  
12  
11  
10  
9
8
7
6
5
4
3
2
1
330 Ω  
22  
nF  
220  
nF  
22  
nF  
22 nF  
22 nF  
10 µF  
IF1GND  
22 nF  
SFE10.7  
MS3  
SFE10.7  
MS3  
SFR450H  
22 Ω  
Q
8.5 V  
MHB879  
Fig.8 Application diagram (continued from Fig.7).  
35  
2001 Apr 12  
Philips Semiconductors  
Product specification  
New In Car Entertainment (NICE) car radio  
TEA6845AH; TEA6845H  
antenna  
f
PLL  
FM RF input  
ref  
input  
A
B
C
V
D
tune  
10 k  
2.2 kΩ  
1.2 kΩ  
100 nF  
relay 1  
100  
nF  
470  
kΩ  
3.3  
nF  
22 Ω  
3.9  
nF  
3.3  
µH  
47 Ω  
100 nF  
DGND  
22  
nF  
relay 1  
teledyne  
relay 2  
100 nF  
38  
34  
35  
36  
37  
39  
33  
32  
31  
ANTENNA  
DAA  
V
22 kΩ  
t
E
BAS16  
TUNING SYSTEM  
BB814  
F
AM  
120  
nH  
10.25 MHz  
G
(1)  
1.5 to  
5 pF  
30  
29  
28  
8.2  
pF  
FM  
AGC  
1 µF  
1 µF  
H
1 nF  
TEA6845AH  
TEA6845H  
L8  
470 nH  
WX  
N1  
6.8  
µH  
27  
26  
25  
4:6  
BA779-2  
47 pF  
×
FM  
÷2  
90°  
I
560 pF  
3.3 µH  
I/Q MIXER  
8.2  
pF  
L6  
22 Ω  
BA779-2  
100 nF  
J
K
L
RFGND  
L7  
220 nH  
24  
AM NOISE  
DETECTOR  
PEAK/  
AVERAGE  
47 µF  
90°  
22 nF  
270  
M
N
BAQ806  
23  
22  
N2  
AM  
RF AGC  
270  
100 nF  
÷5/10  
21  
O
P
22 µF  
220 nF  
WB  
FLAG  
IFAMP1  
×
AM  
MIXER1  
220  
nF  
20  
Q
R
680  
µH  
180  
pF  
100  
µH  
1 mH  
100  
pF  
19  
18  
17 16  
15  
14  
13  
220 µH  
1.5 kΩ  
330 pF  
1 nF  
1 nF  
50 Ω  
22  
nF  
22  
nF  
22  
nF  
Ce1  
1.2 MΩ  
100  
nF  
470 pF  
4.7 µF  
BF861C  
Ce2  
470  
kΩ  
BAV99  
L1  
22 nF  
47 Ω  
SFE10.7  
MS3  
22 Ω  
22 Ω  
10 Ω  
S
100 nF  
100 nF  
100 nF  
304 Ω  
330 Ω  
52 2 Ω  
AM RF  
input  
IF  
output  
IF  
input  
MHB895  
Fig.9 Test circuit (continued in Fig.10).  
36  
2001 Apr 12  
Philips Semiconductors  
Product specification  
New In Car Entertainment (NICE) car radio  
TEA6845AH; TEA6845H  
10 Ω  
5 V  
analog  
AF  
SAMPLE  
AM  
RDS/  
FM  
MPX  
AF  
HOLD  
AUDIO/IF MPX  
100 nF  
47 µF  
47 µF  
A
B
C
10 Ω  
5 V  
digital  
100 nF  
(1)  
270 pF  
68  
kΩ  
68  
kΩ  
4.7 kΩ  
D
100  
nF  
100  
nF  
100  
nF  
10 Ω  
L4  
8.5 V  
BB156  
100 nF  
47 µF  
3.3 µH  
22 Ω  
3.3 µH  
10  
kΩ  
10  
kΩ  
100 nF  
22 nF  
100 nF  
2.7 1.8  
pF pF  
6.8 nF  
47 µF  
47 µF  
40  
41 42  
43  
44 45  
46  
47  
48  
49  
50  
51  
SDA  
SCL  
SEQUENTIAL  
CIRCUIT FOR  
RDS UPDATING  
AM  
DETECTOR  
POWER  
SUPPLY  
VCO  
MUTE  
E
F
2 ms/  
20 ms  
G
2
I
C-bus  
FM IF  
AM IF2  
52  
53  
SDA  
SCL  
2
I
C-bus  
interface  
IF  
COUNT  
2
I
C-BUS  
H
54 IF2GND  
55  
DGND  
AM  
IF AGC  
LEVEL  
DAA  
4.7  
kΩ  
L3  
DEMODULATOR  
56  
I
57  
58  
J
K
L
AFC  
47 µF  
AM  
LEVEL  
BLANK  
PULSE  
Σ
AM/FM  
LEVEL  
59  
60  
61  
M
N
FM  
LIMITER/  
LEVEL  
CRYSTAL  
OSCILLATOR  
×
AM  
20.5  
MHz  
MIXER2  
O
P
62  
220  
nF  
120  
kΩ  
IFAMP2  
Q
R
63  
64  
L1: P7PSG-X398  
L2: P7PSGAE-5078D = S  
L3: 392BC-1977Z  
L4: E543SNAS-02010  
L5: 611SNS-1066Y  
L6: 369INS-3076X  
L7: MURATA LQN  
L8: MURATA LQN  
(1): series NP0  
12  
11 10  
9
8
7
6
5
4
3
2
1
L2  
330 Ω  
22 Ω  
100  
nF  
100  
nF  
22  
nF  
220  
nF  
100  
nF  
22 nF  
22 µF  
IF1GND  
coaxial connector  
test pin  
jumper  
SFE10.7  
MS3  
SFR  
450H  
SFE10.7  
MS3  
to TEA6880H  
S
100 nF  
100 nF  
304 Ω  
100 nF  
100 nF  
100 nF  
100 nF  
2 kΩ  
304 Ω  
330 Ω  
52 2 Ω  
47 Ω  
330 Ω  
2 52 Ω  
2 kΩ  
FM IF1  
output  
FM IF2 AM IF2  
input input  
FM IF2  
output  
limiter  
input  
AM IF  
output  
MHB896  
Fig.10 Test circuit (continued from Fig.9).  
37  
2001 Apr 12  
Philips Semiconductors  
Product specification  
New In Car Entertainment (NICE) car radio  
TEA6845AH; TEA6845H  
Table 25 DC operating points  
UNLOADED DC VOLTAGE (V)  
SYMBOL  
PIN  
AM MODE  
TYP.  
FM MODE  
TYP.  
MIN.  
MAX.  
MIN.  
MAX.  
CAGC  
1
2
3
4
5
6
7
8
9
3.6  
2.5  
2.5  
2.4  
7.2  
4.3  
2.4  
4.3  
4.8  
3.5  
3.5  
3.2  
4.1  
2.5  
2.5  
4.6  
5.1  
3.1  
3.1  
FMLIMDEC  
FMLIMIN  
3
2.8  
2.8  
3
AMIF2DEC  
IFAMP2OUT  
AMNBHOLD  
AMIF2IN  
2.7  
7.9  
4.6  
2.7  
floating  
3.4  
3.9  
8.4  
4.4  
5.1  
3.2  
8
floating  
external 0  
2.7  
IF1GND  
external 0  
3
IFAMP2IN  
Coffset  
4
5
3.1  
3.5  
3.1  
4
3.5  
4
10 floating  
11  
3
IFAMP2DEC  
IFAMP1OUT  
IFAMP1IN  
VDDA6  
3
4
5
3
2.7  
3.5  
4.4  
3.1  
12 7.2  
7.9  
2.7  
3.6  
13 2.4  
2.3  
2.7  
14 external 8.5  
15 2.4  
external 8.5  
2.3  
IFAMP1DEC  
MIX1OUT1  
MIX1OUT2  
VDDA5  
2.7  
3
2.7  
3.1  
16 external 8.5  
17 external 8.5  
18 external 8.5  
19 2.3  
external 8.5  
external 8.5  
external 8.5  
floating  
floating  
0 (no WX)  
floating  
open-collector  
6.5  
AMMIX1IN1  
AMMIX1IN2  
T1AMAGC  
T2AMAGC  
IAMAGC  
2.75  
2.75  
2.8  
3.1  
3.1  
4.6  
3.1  
20 2.3  
21  
0
0.3 (no WX)  
0.5 (no WX)  
22 2.5  
2.8  
23 open-collector  
24 2.7  
Vref(FMMIX)  
FMMIXIN1  
RFGND  
3.1  
1.3  
3.4  
1.6  
7.1  
2.8  
7.9  
3.3  
25  
26 external 0  
27  
1
2.3  
external 0  
2.3  
FMMIXIN2  
IFMAGC  
1
1.3  
1.6  
2.8  
3.3  
28 floating  
1.5 (external  
biasing)  
4 (external  
biasing)  
T2FMAGC  
T1FMAGC  
DAAOUT  
DAATD  
DAAIN  
29 7.5  
8
8.3  
0.3  
3.9  
4.6  
5.3  
7
30 floating  
1
31  
0.2  
0.2  
8.25  
1.5  
8.5  
8.5  
8.5  
32 floating  
0.2  
33  
34  
35  
0
0
0
8.5  
8.5  
8.5  
0
Vtune  
0
CPOUT  
VDDA4  
0
36 external 8.5  
external 8.5  
2001 Apr 12  
38  
Philips Semiconductors  
Product specification  
New In Car Entertainment (NICE) car radio  
TEA6845AH; TEA6845H  
UNLOADED DC VOLTAGE (V)  
SYMBOL  
PIN  
AM MODE  
TYP.  
FM MODE  
TYP.  
MIN.  
MAX.  
MIN.  
MAX.  
fref  
37 3.2  
3.4  
3.7  
3.2  
3.4  
3.7  
VDDD  
38 external 5  
39 external 0  
40 external 0  
41 2.2  
external 5  
external 0  
external 0  
2.2  
DGND  
VCOGND  
OSCFDB  
OSCTNK  
VDDA3  
2.8  
6.1  
3.4  
7.2  
2.8  
6.1  
3.4  
7.2  
42  
43 external 8.5  
44  
5
5
external 8.5  
0
AFSAMPLE  
AFHOLD  
TRDSMUTE  
0
0.2  
2.2  
4.3  
0.5  
2.5  
4.6  
0.2  
0.5  
45 open-collector  
46 1.9  
open-collector  
0.7 (muted)  
1.2 (muted)  
1.7 (muted)  
5.2 (not muted) 5.7 (not muted) 6.2 (not muted)  
floating  
AMAFIF2  
RDSMPX  
FMMPX  
VDDA2  
47  
4
48 floating  
49 floating  
50 external 5  
51 external 8.5  
52 4.8  
2.6  
3.1  
3.5  
3.3  
4
3
external 5  
VDDA1  
external 8.5  
SDA  
5
5
5.2  
5.2  
4.8  
5
5
5.2  
5.2  
SCL  
53 4.8  
4.8  
IF2GND  
QDET1  
QDET2  
CAFC  
54 external 0  
55 floating  
56 floating  
57 floating  
58 0.05  
external 0  
3.6  
4.1  
4.1  
3.4  
4.6  
4.6  
4.1  
7
3.6  
1.2  
Vlevel  
7
0
XTAL1  
XTALGND  
XTAL2  
Iref  
59 1.7  
2.1  
2.5  
1.7  
2.1  
2.5  
60 external 0  
61 1.7  
external 0  
1.7  
2.1  
2.5  
4.5  
2.1  
2.5  
4.5  
62  
4
4.25  
4
4.25  
AMMIX2OUT1 63 external 8.5  
AMMIX2OUT2 64 external 8.5  
external 8.5  
external 8.5  
2001 Apr 12  
39  
Philips Semiconductors  
Product specification  
New In Car Entertainment (NICE) car radio  
TEA6845AH; TEA6845H  
14 PACKAGE OUTLINES  
QFP64: plastic quad flat package; 64 leads (lead length 1.95 mm); body 14 x 20 x 2.8 mm  
SOT319-2  
y
X
A
51  
33  
52  
32  
Z
E
e
A
2
H
A
E
(A )  
3
E
A
1
θ
w M  
p
pin 1 index  
L
p
b
L
20  
64  
detail X  
1
19  
w M  
Z
D
v
M
A
b
p
e
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
D
H
L
L
v
w
y
Z
Z
E
θ
1
2
3
p
E
p
D
max.  
7o  
0o  
0.25 2.90  
0.05 2.65  
0.50 0.25 20.1 14.1  
0.35 0.14 19.9 13.9  
24.2 18.2  
23.6 17.6  
1.0  
0.6  
1.2  
0.8  
1.2  
0.8  
mm  
3.20  
0.25  
1
1.95  
0.2  
0.2  
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  
EIAJ  
97-08-01  
99-12-27  
SOT319-2  
MO-112  
2001 Apr 12  
40  
Philips Semiconductors  
Product specification  
New In Car Entertainment (NICE) car radio  
TEA6845AH; TEA6845H  
QFP64: plastic quad flat package; 64 leads (lead length 1.95 mm); body 14 x 20 x 2.8 mm  
SOT319-5  
y
X
A
51  
33  
52  
32  
Z
E
e
A
2
H
A
E
E
A
(A )  
3
1
θ
w M  
L
p
b
pin 1 index  
p
L
20  
64  
detail X  
1
19  
Z
w M  
D
v
v
M
M
A
b
e
p
D
B
H
B
D
0
5
10 mm  
scale  
DIMENSIONS (mm are the original dimensions)  
A
(1)  
(1)  
(1)  
Z
(1)  
UNIT  
A
A
A
b
c
D
E
e
H
D
H
L
L
v
w
y
Z
E
θ
1
2
3
p
E
p
D
max.  
7o  
0o  
0.60 3.05  
0.25 2.55  
0.50 0.23 20.1 14.1  
0.35 0.11 19.9 13.9  
24.2 18.2  
23.6 17.6  
1.03  
0.73  
1.23 1.23  
0.78 0.78  
mm  
3.40  
0.25  
1.0  
1.95  
0.20 0.2 0.10  
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  
EIAJ  
99-06-03  
SOT319-5  
MO-112CA1  
2001 Apr 12  
41  
Philips Semiconductors  
Product specification  
New In Car Entertainment (NICE) car radio  
TEA6845AH; TEA6845H  
15 SOLDERING  
If wave soldering is used the following conditions must be  
observed for optimal results:  
15.1 Introduction to soldering surface mount  
packages  
Use a double-wave soldering method comprising a  
turbulent wave with high upward pressure followed by a  
smooth laminar wave.  
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).  
For packages with leads on two sides and a pitch (e):  
– 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;  
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.  
– smaller than 1.27 mm, the footprint longitudinal axis  
must be parallel to the transport direction of the  
printed-circuit board.  
The footprint must incorporate solder thieves at the  
downstream end.  
15.2 Reflow soldering  
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.  
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.  
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.  
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 and 200 seconds depending  
on heating method.  
Typical dwell time is 4 seconds at 250 °C.  
A mildly-activated flux will eliminate the need for removal  
of corrosive residues in most applications.  
Typical reflow peak temperatures range from  
215 to 250 °C. The top-surface temperature of the  
packages should preferable be kept below 220 °C for  
thick/large packages, and below 235 °C for small/thin  
packages.  
15.4 Manual soldering  
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.  
15.3 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.  
When using a dedicated tool, all other leads can be  
soldered in one operation within 2 to 5 seconds between  
270 and 320 °C.  
To overcome these problems the double-wave soldering  
method was specifically developed.  
2001 Apr 12  
42  
Philips Semiconductors  
Product specification  
New In Car Entertainment (NICE) car radio  
TEA6845AH; TEA6845H  
15.5 Suitability of surface mount IC packages for wave and reflow soldering methods  
SOLDERING METHOD  
WAVE  
REFLOW(1)  
not suitable suitable  
PACKAGE  
BGA, LFBGA, SQFP, TFBGA  
HBCC, HLQFP, HSQFP, HSOP, HTQFP, HTSSOP, SMS  
PLCC(3), SO, SOJ  
not suitable(2)  
suitable  
suitable  
suitable  
LQFP, QFP, TQFP  
not recommended(3)(4) suitable  
not recommended(5)  
suitable  
SSOP, TSSOP, VSO  
Notes  
1. 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”.  
2. These packages are not suitable for wave soldering as a solder joint between the printed-circuit board and heatsink  
(at bottom version) can not be achieved, and as solder may stick to the heatsink (on top version).  
3. 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.  
4. Wave soldering is only suitable for LQFP, TQFP and QFP packages with a pitch (e) equal to or larger than 0.8 mm;  
it is definitely not suitable for packages with a pitch (e) equal to or smaller than 0.65 mm.  
5. Wave soldering is only suitable for SSOP and TSSOP 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.  
16 DATA SHEET STATUS  
PRODUCT  
DATA SHEET STATUS(1)  
DEFINITIONS  
STATUS(2)  
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.  
Preliminary data  
Product 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.  
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. Changes will be  
communicated according to the Customer Product/Process Change  
Notification (CPCN) procedure SNW-SQ-650A.  
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.  
2001 Apr 12  
43  
Philips Semiconductors  
Product specification  
New In Car Entertainment (NICE) car radio  
TEA6845AH; TEA6845H  
17 DEFINITIONS  
18 DISCLAIMERS  
Short-form specification  
The data in a short-form  
Life support applications  
These products are not  
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.  
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.  
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, without notice, in the  
products, including circuits, standard cells, and/or  
software, described or contained herein in order to  
improve design and/or performance. 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.  
Application information  
Applications that are  
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.  
19 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.  
2001 Apr 12  
44  
Philips Semiconductors  
Product specification  
New In Car Entertainment (NICE) car radio  
TEA6845AH; TEA6845H  
NOTES  
2001 Apr 12  
45  
Philips Semiconductors  
Product specification  
New In Car Entertainment (NICE) car radio  
TEA6845AH; TEA6845H  
NOTES  
2001 Apr 12  
46  
Philips Semiconductors  
Product specification  
New In Car Entertainment (NICE) car radio  
TEA6845AH; TEA6845H  
NOTES  
2001 Apr 12  
47  
Philips Semiconductors – a worldwide company  
Argentina: see South America  
Netherlands: Postbus 90050, 5600 PB EINDHOVEN, Bldg. VB,  
Tel. +31 40 27 82785, Fax. +31 40 27 88399  
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220050 MINSK, Tel. +375 172 20 0733, Fax. +375 172 20 0773  
Pakistan: see Singapore  
Belgium: see The Netherlands  
Brazil: see South America  
Philippines: Philips Semiconductors Philippines Inc.,  
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Slovakia: see Austria  
Slovenia: see Italy  
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Uruguay: see South America  
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Mexico: 5900 Gateway East, Suite 200, EL PASO, TEXAS 79905,  
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Middle East: see Italy  
For all other countries apply to: Philips Semiconductors,  
Marketing Communications, Building BE-p, P.O. Box 218, 5600 MD EINDHOVEN,  
The Netherlands, Fax. +31 40 27 24825  
Internet: http://www.semiconductors.philips.com  
72  
SCA  
© Philips Electronics N.V. 2001  
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  
753503/01/pp48  
Date of release: 2001 Apr 12  
Document order number: 9397 750 07488  

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