TEA6824T [NXP]
In Car Entertainment ICE car radio; 车载娱乐内燃机汽车收音机
| 型号： | TEA6824T |
| 厂家： | 
NXP |
| 描述： | In Car Entertainment ICE car radio |
| 文件： | 总36页 (文件大小：253K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
INTEGRATED CIRCUITS
DATA SHEET
TEA6824T
In Car Entertainment (ICE) car
radio
1997 May 05
Preliminary specification
Supersedes data of 1996 Nov 04
File under Integrated Circuits, IC01
Philips Semiconductors
Preliminary specification
In Car Entertainment (ICE) car radio
TEA6824T
FEATURES
• FM mixer for conversion from FM-IF1 = 72.2 MHz to
FM-IF2 = 10.7 MHz
• AM mixer for conversion from AM-IF1 = 10.7 MHz to
AM-IF2 = 450 kHz
• FM-IF gain stage
GENERAL DESCRIPTION
• Crystal oscillator providing mixer frequencies and
references for IF-counter
The TEA6824T together with the TEA6810T forms the
receiver part of an AM/FM electronically tuned car radio
providing FM MPX signal and AM AF signal for Car Digital
Signal Processor (CDSP) applications.
• FM quadrature demodulator with automatic centre
frequency adjustment and THD compensation
• AM-IF-amplifier and demodulator
• I2C-bus transceiver with interface to enable direct data
transfer to radio front-end
• IF-count for AM and FM
• Analog-to-digital conversion of level voltage and
multi-path information
• Reference frequency generation for PLL synthesizer.
ORDERING INFORMATION
PACKAGE
TYPE NUMBER
NAME
DESCRIPTION
plastic very small outline package; 56 leads; face down
VERSION
TEA6824T
VSO56
SOT190-2
1997 May 05
2
Philips Semiconductors
Preliminary specification
In Car Entertainment (ICE) car radio
TEA6824T
QUICK REFERENCE DATA
SYMBOL
PARAMETER
CONDITIONS
note 1
MIN.
4.5
TYP.
5.0
MAX.
5.5
UNIT
VDDA1
analog supply voltage 1 (+5 V; pin 5)
V
operating range
FM mode
4.75
17
5.0
21
5.25
25
V
IDDA1
analog supply current 1 (pin 5)
mA
mA
mA
AM mode
14
17
21
I
19 + I20
I22 + I23
VDDA2
total FM mixer output current
(pins 19 and 20)
4.8
6.0
7.2
total AM mixer output current
(pins 22 and 23)
10
12
14
mA
analog supply voltage 2 (pin 28)
note 1
7.0
8.1
2.4
7.0
8.1
19
8.5
8.5
3.0
8.5
8.5
25
10
V
operating range
FM mode
8.9
3.6
10
V
IDDA2
analog supply current 2 (pin 28)
mA
V
VDDA3
analog supply voltage 3 (+8.5 V; pin 56) note 1
operating range
8.9
31
V
IDDA3
VDDD
IDDD
analog supply current 3 (pin 56)
FM mode
AM mode
note 1
mA
mA
V
9.5
4.5
4.75
8
12
15
digital supply voltage 1 (+5 V; pin 5)
5.0
5.0
10
5.5
5.25
12
operating range
note 1
V
digital supply current (pin 52)
signal plus noise-to-noise ratio
mA
dB
FM mode;
∆f = 22.5 kHz at pin 47
66
75
−
S + N
--------------
N
AM mode; m = 0.3
FM mode; ∆f = 75 kHz
AM mode
54
−
60
0.1
1.5
−
−
dB
%
THD
total harmonic distortion
0.35
3.0
+85
−
%
Tamb
operating ambient temperature
−40
°C
Note
1. IC is operating; specified parameters may deviate from limits which are valid for operating range.
1997 May 05
3
Philips Semiconductors
Preliminary specification
In Car Entertainment (ICE) car radio
TEA6824T
BLOCK DIAGRAM
bnok,lfuapgedwith
V
V
TOKO
P392BC-1977Z
MPX
ref
ref
SFP450
1.5 nF
AMAF
33 kΩ
LEVELADJ
FMSTOP
AMSTOP
100 kΩ
L13
62 pF
TR5
100 kΩ
R40
100 kΩ
R39
7PSAG-1946D = S
R51
2.2 nF
V
22 kΩ
33 kΩ
CC1
47 µF
100
nF
100 nF
4.3 kΩ
10.7 MHz
1
2
39
22
23
33
34
42
36
38
43
48
SFE10.7
220 nF
820 kΩ
10 nF
25
37
AM/FM
SWITCH
FM LIMITER
AM AMPLIFIER
MPX
BUFFER
AFC
330 Ω
35
27
24
26
3
LEVEL
DETECTOR
100 nF
AM
10.7 MHz
AM
DELOG
AMPLIFIER
22 nF
÷ 2 /÷ 6
15
16
LEVEL
IF
:N5
28
29
AMPLIFIER
AMPLIFIER
100 nF
47 kΩ
V
ref
10.7 MHz
10.7 MHz
21
17
18
19
20
TR3
56 pF
20 kHz
ZS369SCS-2144AJ
72.2 MHz
13
14
FM
30
31
32
41
44
45
46
47
51
n.c.
n.c.
n.c.
n.c.
n.c.
n.c.
n.c.
n.c.
n.c.
BUFFER
TEA6824T
10
nF
8
9
61.5 MHz
ADC
MULTI-
PATH
ADC
LEVEL
OSCILLATOR
PHILIPS
9922 521 00098
or Daiwa AT - 49
10
11
REFERENCE
FREQUENCY
IF
f
V
V
CC1
CC
ref
COUNTER
22 µH
47 µF
+8.5 V
56
4
100
nF
6
7
V
V
SDA
INT1
10 kΩ
10 kΩ
I2C-BUS
SUPPLY
SCL
INT2
470 nF
TK
COMPEN-
SATION
12
5
120 kΩ
10 Ω
V
CCA
+5 V
54
53
330
55
40
50
49
52
33 µF
330
100
nF
33 µF
Ω
Ω
10 kΩ
10 kΩ
220 nF
100 nF
10 Ω
V
CCD
+5 V
LEVEL
SCL
SDA
V
CCD
+5 V
MHA537
Fig.1 Block diagram.
4
1997 May 05
Philips Semiconductors
Preliminary specification
In Car Entertainment (ICE) car radio
TEA6824T
PINNING
SYMBOL
QDET1
PIN
DESCRIPTION
SYMBOL
PIN
DESCRIPTION
1
2
3
4
5
demodulator tank 1
demodulator tank 2
reference input 1
analog ground
FMIFAMPOUT
n.c.
29
30
31
32
33
34
35
36
37
38
39
40
FM-IF-amplifier output
not connected
QDET2
REFIN1
AGND
VDDA1
n.c.
not connected
n.c.
not connected
analog supply voltage 1
(+5 V)
AMIF2IN1
AMIF2IN2
FMIN2
AM-IF2 input 1
AM-IF2 input 2
HFBUS1
HFBUS2
6
7
HF bus 1 output; pull-up to
+5 V
FM limiter input 2
DC feed FM limiter
FM limiter input 1
level adjustment
AFC capacitor
DCFEED
FMIN1
HF bus 2 output; pull-up to
+5 V
LEVELADJ
CAFC
XTAL1
XTAL2
fref(p)
8
9
crystal oscillator 1
crystal oscillator 2
MPBUF
multi-path buffer time
constant
10
PLL reference frequency
output p
n.c.
41
42
43
not connected
fref(n)
11
PLL reference frequency
output n
FMSTOP
MPXOUT
FMSTOP adjustment
FM demodulator MPX
output
Iref
12
13
14
15
16
17
18
19
20
21
22
23
24
reference current input
72 MHz FM-IF input 1
72 MHz FM-IF input 2
reference input 2
FMIF1IN1
FMIF1IN2
REFIN2
n.c.
44
45
46
47
48
49
50
51
52
not connected
n.c.
not connected
n.c.
not connected
REFIN3
reference input 3
n.c.
not connected
REFIN4
reference input 4
AMAFOUT
DEC3
AM demodulator AF output
decoupling 3
REFIN5
reference input 5
FMIF2OUT1
FMIF2OUT2
Vref
FM mixer output 1
FM mixer output 2
reference voltage input
AM mixer output 1
AM mixer output 2
LEVELUNWEIG
n.c.
level unweighted output
not connected
VDDD
digital supply voltage
(+5 V)
AMIF2OUT1
AMIF2OUT2
FMAMDEC
SDA
SCL
53
54
serial data input/output;
pull-up to +5 V; I2C-bus
FM/AM 10.7 MHz
decoupling input
serial clock input;
pull-up to +5 V; I2C-bus
DEC1
25
26
27
28
decoupling 1
DEC2
decoupling 2
DGND
VDDA3
55
56
digital ground
FMAM10.7
VDDA2
FM/AM 10.7 MHz input
analog supply voltage 2
analog supply voltage 3
(+8.5 V)
1997 May 05
5
Philips Semiconductors
Preliminary specification
In Car Entertainment (ICE) car radio
TEA6824T
handbook, halfpage
V
56
1
2
QDET1
QDET2
REFIN1
AGND
DDA3
DGND 55
SCL 54
3
SDA 53
4
V
52
5
V
DDD
DDA1
n.c. 51
6
HFBUS1
HFBUS2
XTAL1
LEVELUNWEIG 50
DEC3 49
7
8
AMAFOUT 48
n.c. 47
9
XTAL2
10
11
12
f
ref(p)
n.c. 46
f
ref(n)
n.c. 45
I
ref
n.c. 44
13 FMIF1IN1
14 FMIF1IN2
15 REFIN2
MPXOUT 43
FMSTOP 42
n.c. 41
TEA6824T
16 REFIN3
MPBUF 40
17 REFIN4
C
39
18 REFIN5
AFC
LEVELADJ 38
FMIN1 37
19 FMIF2OUT1
20 FMIF2OUT2
DCFEED 36
FMIN2 35
21 V
ref
22 AMIF2OUT1
23 AMIF2OUT2
24 FMAMDEC
25 DEC1
AMIF2IN2 34
AMIF2IN1 33
n.c. 32
n.c. 31
26 DEC2
n.c. 30
27 FMAM10.7
FMIFAMPOUT 29
28 V
DDA2
MHA532
Fig.2 Pin configuration.
6
1997 May 05
Philips Semiconductors
Preliminary specification
In Car Entertainment (ICE) car radio
TEA6824T
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 134).
SYMBOL
VDDA1
PARAMETER
CONDITIONS
MIN.
−0.3
MAX.
+6.5
UNIT
analog supply voltage 1 (pin 5)
analog supply voltage 2 (pin 28)
analog supply voltage 3 (pin 56)
digital supply voltage (pin 52)
storage temperature
V
VDDA2
VDDA3
VDDD
Tstg
−0.3
−0.3
−0.3
−55
+12
+12
+6.5
+150
+85
V
V
V
°C
°C
Tamb
Ves
operating ambient temperature
electrostatic handling
−40
note 1
pins 8 and 9
−100
−300
+100
+300
V
V
all other pins
Note
1. Charge device model class B: equivalent to discharging a 200 pF capacitor via a 0 Ω series resistor.
CHARACTERISTICS
VDDA3 = VDDA2 = 8.5 V (ref. AGND); VDDA1 = 5 V (ref. AGND); VDDD = 5 V (ref. DGND); Tamb = 25 °C; fmod = 1 kHz;
∆f = 22.5 kHz; Rg = 50 Ω; V37-35 = 10 mV; with de-emphasis = 50 µs; unless otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX. UNIT
Current consumption
IDDA1
analog supply current 1 (pin 5)
FM mode
17
14
2.4
19
9.5
8
21
17
25
21
3.6
31
15
12
7.2
mA
mA
mA
mA
mA
mA
mA
AM mode
FM mode
FM mode
AM mode
IDDA2
IDDA3
analog supply current 2 (pin 28)
analog supply current 3 (pin 56)
3.0
25
12
IDDD
digital supply current (pin 52)
10
I19 + I20
total FM mixer output current
pins 19 and 20
4.8
6.0
I
22 + I23
total AM mixer output current
pins 22 and 23
AM mode
10
12
12
14
14
mA
FM-IF path; see Fig.3
V19-20max(p-p)
maximum output voltage
−
V
pins 19 to 20 (peak-to-peak value)
Ibias(19-20)
ILI(19-20)
mixer bias current pins 19 to 20
2.4
3.0
3.6
2
mA
mixer leakage current
pins 19 to 20
in AM position
−
−
µA
I
19IF2/V13-14IF1
conversion gain
1.65 1.9
2.2
mS
Ri(13-14)
Ci(13-14)
Ropt
input resistance between
pins 13 and 14
5
−
−
7
−
kΩ
input capacitance between
pins 13 and 14
3
4.5
pF
optimum generator resistance
1.2
−
kΩ
1997 May 05
7
Philips Semiconductors
Preliminary specification
In Car Entertainment (ICE) car radio
TEA6824T
SYMBOL
Ro(19-20)
PARAMETER
CONDITIONS
MIN.
TYP.
MAX. UNIT
output resistance between
pins 19 and 20
15
20
−
kΩ
C
o(19-4); Co(20-4) output capacitance between
−
12
14
−
pF
pins 19 to 4 and pins 20 to 4
IP3
third-order intermodulation
114
124
dBµV
Oscillator
fosc
oscillator frequency
−
−
−
61.5
−
MHz
Hz
K−1
∆fosc
oscillator frequency spread
−
250
−
∆fosc/∆T
temperature dependence of
oscillator frequency
crystal type Philips
9922 521 00098
30 × 10−6
R1
C0
crystal motional resistance
crystal shunt capacitance
−
−
−
−
70
5
Ω
pF
FM-IF2 amplifier
V27-24max(rms)
maximum input voltage for 1 dB
compression point between
pins 27 and 24 (RMS value)
80
110
−
mV
V29-4max(rms)
maximum output voltage between
pins 29 and 4 (RMS value)
220
9
320
12
−
mV
dB
V29-4/V27-24
amplifier gain between
pins 29 and 4 and between
pins 27 and 24
loaded with 330 Ω;
see Fig.4
15
∆V29-4/V27-24
gain temperature dependence
between pins 29 and 4 and
between pins 27 and 24
−
0.05
−
dB/K
Ri(27-4)
Ci(27-4)
Ro(29-4)
Co(29-4)
input resistance between
pins 27 and 4
300
−
330
−
360
5
Ω
input capacitance between
pins 27 and 4
pF
Ω
output resistance between
pins 29 and 4
300
−
330
−
360
5
output capacitance between
pins 29 and 4
pF
FM-IF2 limiter
Vo1-2(p-p)
limiter output voltage between
pins 1 and 2 (peak-to-peak value)
500
−
700
80
−
−
mV
dB
pF
kΩ
pF
V1-2/V37-35
limiter gain between pins 1 and 2 see Fig.5
and between pins 37 and 35
−
Ci(37-4)
Ro(1-2)
Co(1-2)
input capacitance between
pins 37 and 4
−
5
output resistance between
pins 1 and 2
−
−
1.0
20
output capacitance between
pins 1 and 2
10
15
1997 May 05
8
Philips Semiconductors
Preliminary specification
In Car Entertainment (ICE) car radio
TEA6824T
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX. UNIT
FM demodulator
V43-4(rms)
MPX output voltage between
pins 43 and 4 (RMS value)
160
200
240
40
mV
V37-35(rms)
V37-35(rms)
start of limiting voltage between
pins 37 and 35 (RMS value)
αAF = −3 dB
−
25
µV
input voltage for signal plus
see Fig.6;
noise-to-noise ratio (RMS value)
−
−
30
70
45
µV
µV
S + N
= 26 dB
--------------
N
100
S + N
--------------
N
= 46 dB
∆V43DC
residual DC-offset voltage pin 43 ∆Ldemod = typical value;
10 µV < V37-35 < 80 µV
−
100
10
1000 mV
80 µV < V37-35 < 800 mV −
30
mV
dB
V43FM/V43AM
AM suppression pin 43
∆f = 22.5 kHz;
fmodAM = 1 kHz;
mAM = 30%;
50
60
−
V
37-35 = 3 to 300 mV
∆V43-44AFCdis
demodulator frequency control
28
32
−
dB
/∆V43-44AFCactive voltage (AFC) efficiency between
pins 43 and 44 at 100 kHz detune
from exact tuning
Ro43
B43
output resistance pin 43
AF bandwidth pin 43
−
−
1.5
−
kΩ
200
66
−
kHz
dB
signal plus noise-to-noise ratio
75
−
S + N
--------------
N
THD
total harmonic distortion at pin 43 detuning ≤50 kHz;
∆f = 75 kHz; fmod = 1 kHz
−
0.1
0.35
%
without de-emphasis;
Ldemod = typical value;
V37-35 = 300 µV to 800 mV
1997 May 05
9
Philips Semiconductors
Preliminary specification
In Car Entertainment (ICE) car radio
TEA6824T
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX. UNIT
Unweighted voltage level
V50-4
unweighted voltage level
see Fig.7; V38 = 2.52 V;
V
V
37-35 ≤ 2.5 µV
1.6
2.7
2.2
3.4
3.0
4.7
V
V
37-35 = 1.0 mV
∆V50-4/∆V37-35
slope of unweighted voltage level 100 µV ≤ V37-35(rms)
< 300 mV;
temperature
0.75 0.9
1.05 V/20 dB
compensation off
temperature
0.6
0.75
0.9
V/20 dB
compensation on
∆V50-4/(V50-4∆T) temperature dependence
V37-35 = 1 mV;
temperature
compensation off
−
5.0
2.0
−
−
mV/VK
mV/VK
mA
temperature
compensation on
−
−
Isource(max)
Isink(max)
Ro50
maximum output source current
pin 50
0.3
−50
−
−
maximum output sink current
pin 50
−
−
µA
output resistance pin 50
−
300
Ω
ADJUSTMENT OF UNWEIGHTED VOLTAGE LEVEL AND Vmutaml; note 1
∆V50
adjusting range voltage pin 50
internal bias voltage
adjusting gain
V37-35(rms) = 10 mV
−1.8
−
+1.8
V
V
V38-4
−
−
−
2.6
−0.9
80
−
−
−
∆V50-4/∆V38-4
Ri38
input resistance pin 38
kΩ
Multi-path detector
fMP
multi-path detector band-pass
centre frequency
−
20
−
−
kHz
kHz
BMP
band-pass bandwidth
7
−
Reference voltage
Vo(21-4)
output voltage
I21 = −1 mA
4.5
−
5.1
3.3
−
5.7
−
V
∆V21-4/(V21-4∆T) temperature dependence
mV/VK
mA
Io21
AM-IF path; see Fig.9 and notes 2 and 3
V22-23max(p-p) maximum output voltage between
output current pin 21
−
1
12
15
−
V
pins 22 and 23
(peak-to-peak value)
1997 May 05
10
Philips Semiconductors
Preliminary specification
In Car Entertainment (ICE) car radio
TEA6824T
SYMBOL
Ibias(22-23)
ILI(22-23)
PARAMETER
CONDITIONS
MIN.
TYP.
MAX. UNIT
mixer bias current pins 22 and 23
5
6
7
2
mA
mixer leakage current
pins 22 and 23
in FM position
−
−
µA
I
22IF2/V27-24IF1
conversion gain
2.2
2.7
3.4
mS
Ri(27-24)
Ci(27-24)
Ro(22-23)
Co(22-23)
IP3
input resistance between
pins 27 and 24
300
330
360
Ω
input capacitance between
pins 27 and 24
−
5
8
pF
output resistance between
pins 22 and 23
10
−
20
5
−
kΩ
output capacitance between
pins 22 and 23
10
−
pF
third order intermodulation
−
137
dBµV
AM DETECTOR; see notes 4 and 5
V48-4(rms)
AF output level (RMS value)
RL48 > 500 kΩ;
100 µV ≤ V33-34 ≤ 300 mV
190
240
50
290
75
mV
V33-34(rms)
sensitivity voltage (RMS value)
−
µV
S + N
= 26 dB
= 46 dB
--------------
N
−
200
400
µV
S + N
--------------
N
AM-IF2 minimum input voltage
(RMS value)
THD ≤ 5%; m = 0.8
THD ≤ 5%; m = 0.8
−
−
100
−
µV
mV
kΩ
pF
AM-IF2 maximum input voltage
(RMS value)
800
1.8
−
−
Ri(33-34)
Ci(33-34)
IF2 input resistance between
pins 33 and 34
2.0
10
2.2
15
IF2 input capacitance between
pins 33 and 34
Ro48
Co48
output resistance pin 48
27
−
33
−
39
10
−
kΩ
pF
dB
output capacitance pin 48
signal-plus-noise-to-noise ratio
54
60
S + N
--------------
N
THD
total harmonic distortion
m = 0.8;
−
1.5
3.0
%
300 µV ≤ V33-34 ≤ 200 mV
Notes to the Characteristics
1. For typical adjusting range see Fig.8.
2. fIF1 = 10.7 MHz; fIF2 = 450 kHz for AM mixer.
3. The AM oscillator signal is generated by division of the 61.5 MHz crystal oscillator. Two divider ratios programmable
by the I2C-bus: division by 6 (AM-IF1 = 10.7 MHz); division by 2 (AM-IF1 = 30 MHz).
4. For typical AM level curve see Fig.10.
5. For AM detector; fAMIF2 = 450 kHz; fmod = 400 Hz; m = 30%.
1997 May 05
11
Philips Semiconductors
Preliminary specification
In Car Entertainment (ICE) car radio
TEA6824T
ADCs CHARACTERISTICS FOR LEVEL AND MULTI-PATH VOLTAGES
SYMBOL
PARAMETER
CONDITIONS MIN.
TYP. MAX.
UNIT
ADC for FM level information; note 1
∆V37-35
∆V37-35
analog-to-digital conversion step size for V37-35
2
4
8
dB/step
dB
analog-to-digital conversion level range for V37-35
43
56
69
FM STOP
∆Vstop
variation of stop level as function of V42-4
−
16
−
dB/V
ADC for AM level information; note 2
∆V33-34
∆V33-34
analog-to-digital conversion step size for V33-34
2
4
8
dB/step
dB
analog-to-digital conversion level range for V33-34
43
56
69
AM STOP
∆Vstop
variation of stop level as a function of V43-4
−
16
−
dB/V
ADC for multi-path information; note 3
m
multi-path conversion
step 0
step 1
step 2
step 3
step 4
step 5
step 6
step 7
−
−
−
−
−
−
−
−
−
5
−
−
−
−
−
−
−
%
%
%
%
%
%
%
%
15
22
28
34
40
46
52
Notes
1. The FM level information V50-3 is analog-to-digital converted with 4 bits.
2. The AM level information V49-4 is analog-to-digital converted with 4 bits.
3. The multi-path information V40-4 is analog-to-digital converted with 3 bits covering an IF2 amplitude modulation range
m ≤ 0.6; fmod = 20 kHz.
1997 May 05
12
Philips Semiconductors
Preliminary specification
In Car Entertainment (ICE) car radio
TEA6824T
1 : 1
+8.5 V
13
14
19
20
LOW NOISE
AMPLIFIER
AVD 704201
(S/N = 103 dB)
GENERATOR
SPECTRUM
ANALYZER
HP8568A
3.5
3.5
330
Ω
TEA6824T
2
R&S SMPC
R
= 50 Ω
g
f
= 10.7 MHz
f
= 72.2 MHz
IF2
IF1
MHA533
Fig.3 Test circuit FM mixer.
10 nF
27
10 nF
29
PASSIVE
ATTENUATOR
–6 dB
GENERATOR
R&S SMPC
OSCILLOSCOPE
PM3295A
330
Ω
TEA6824T
R
= 50 Ω
= 330 Ω
R
= 50 Ω
IN
g
24
10 nF
4
R
OUT
MHA534
Fig.4 Test circuit IF-amplifier.
10 nF
10 nF
10 nF
37
35
1
2
GENERATOR
R&S SMPC
OSCILLOSCOPE
PM3295A
TEA6824T
50 Ω
R
= 50 Ω
g
MHA535
100 nF
Fig.5 Test circuit limiter gain.
13
1997 May 05
Philips Semiconductors
Preliminary specification
In Car Entertainment (ICE) car radio
TEA6824T
MHA248
20
V
43-4
(dB)
(1)
0
–20
–40
–60
–80
(2)
–3
–2
–1
2
3
10
10
10
1
10
10
10
V
(mV)
37-35
(1) AF: f = 10.7 MHz; deviation = 22.5 kHz; f
= 1 kHz.
(2) Noise: unweighted B = 250 Hz to 15 kHz with de-emphasis 50 µs.
IF mod
Fig.6 Signal and noise of unmuted MPX voltage.
MHA249
10
V
50-4
(V)
8
6
4
2
0
(1)
(2)
–3
–2
–1
2
3
10
10
10
1
10
10
10
V
(mV)
37-35
(1) Temperature compensation off.
(2) Temperature compensation on.
Fig.7 Unweighted voltage level (typical curve).
14
1997 May 05
Philips Semiconductors
Preliminary specification
In Car Entertainment (ICE) car radio
TEA6824T
MHA250
10
V
50-4
(V)
8
6
4
2
0
–3
–2
–1
2
3
10
10
10
1
10
10
10
V
(mV)
37-35
Fig.8 Adjustment range of unweighted voltage level.
+8.5 V
10 nF
270 Ω
27
24
22
23
GENERATOR
R&S SMPC
LOW NOISE
AMPLIFIER
AVD 704201
(S/N = 103 dB)
SPECTRUM
ANALYZER
HP8568A
7
7
TEA6824T
20
2.2
kΩ
R
= 50 Ω
= 10.7 MHz
g
f
IF1
22
nF
10 nF
MHA536
Fig.9 Test circuit AM mixer.
15
1997 May 05
Philips Semiconductors
Preliminary specification
In Car Entertainment (ICE) car radio
TEA6824T
MHA214
20
V
48-4
8
(dB)
(1)
THD
(%)
0
6
4
2
0
(4)
–20
–40
(2)
–60
(3)
–80
–3
–2
–1
2
3
10
10
10
1
10
10
10
V
(mV)
33-34
(1) AF: f = 450 kHz; m = 30%; f
= 400 Hz. (2) Noise: unweighted B = 250 Hz to 15 kHz.
mod
(3) THD m = 80%. (4) AM level voltage.
Fig.10 Signal, noise and distortion of AM AF output voltage and AM voltage level (typical curve).
I2C-BUS AND I2C-BUS CONTROLLED FUNCTIONS
I2C- bus specification
When writing to the transceiver by using the STOP
condition before completion of the whole transfer:
• The remaining bytes will contain the old information
The standard I2C-bus specification is expanded by the
following definitions.
• If the transfer of a byte was not completed, this byte is
lost and the previous information is available.
Structure of the I2C-bus logic: slave transceiver with auto
increment and expansion to switch a direct transfer of all
transmissions to an output for the radio front-end IC
TEA6810T.
DATA TRANSFER TO AN OUTPUT OF THE FRONT-END IC
A data bit in the transceiver of the TEA6824T enables or
disables a direct transfer of all transmissions to an
interface stage for the front-end IC.
Sub-addresses are not used.
For a transmission to the front-end IC the address and the
data format of the front-end IC has to be used.
DATA TRANSFER FOR THE TEA6824T
Data sequence:
• Address
• Byte 1
Remark: The pull-up resistors for the front-end interface
(pins 6 and 7) should not be connected to the +5 V supply
voltage of the front-end IC, otherwise a bus pull-down
(pin 53) can occur during switching off the front-end supply
when the interface stage is enabled.
• Byte 2.
The data transfer may only be in this order. The transfer
direction of the data bytes is defined by the LSB of the
address.
DATA TRANSFER TO THE IF IC
Data transfer to the IF IC (TEA6824T) is independent of
the state of interface stage for the front-end IC.
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.
1997 May 05
16
Philips Semiconductors
Preliminary specification
In Car Entertainment (ICE) car radio
TEA6824T
Table 1 Structure of the I2C-bus
Table 4 Data to be received by the IC for data byte 2
BIT
DESCRIPTION
AM/FM; AM mode
RESULT
DESCRIPTION
SPECIFICATION
1100001X
0
bit 0 = 0
bit 0 = 1
bit 1 = 0
bit 1 = 1
bit 2 = 0
bit 2 = 1
Bus address of
the TEA6824T
AM/FM; FM mode
Subaddress
not used
1
2
divider for AM mixer; divide-by-2
divider for AM mixer; divide-by-6
measure time IF-count; 40 ms
measure time IF-count; 4 ms
not used
Hardware (pin)
programmable
address bits
not available
Default settings by data byte 1 bits 4 to 7 are set to
power-on reset logic 0; all other bits are random
3
4
IF-prescaler division rate;
divide-by-200
bit 4 = 0
bit 4 = 1
Table 2 Data to be received by the IC for data byte 1
IF-prescaler division rate;
divide-by-25
BIT
DESCRIPTION
RESULT
0
1
not used
−
−
5
6
not used
LSB reference frequency for
synthesizer
temperature compensation of
unweighted voltage level;
2
3
reference frequency for
synthesizer
−
−
temperature coefficient as specified
in Chapter “Characteristics”
MSB reference frequency for
synthesizer
temperature compensation off
temperature compensation on
not used
bit 6 = 0
bit 6 = 1
4
5
6
7
not used
−
7
not used
−
Table 5 Data to be transmitted by the IC for data byte 1;
not used
−
note 1
I2C-bus to front-end ENABLED
I2C-bus to front-end DISABLED
bit 7 = 1
bit 7 = 0
BIT
DESCRIPTION
bit 1 level information
0
1
2
3
4
5
6
7
Table 3 Reference frequency setting in byte 1;
bit 2 level information
MSB (bit 3) level information
LSB multi-path information
multi-path information
MSB multi-path information
not used
see Table 1
BIT 3 BIT 2 BIT 1
FREQUENCY SETTING
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
3 kHz
5 kHz
10 kHz
15 kHz
LSB (bit 0) level information
25 kHz
Note
50 kHz
1. The analog-to-digital conversion for multi-path and
level will be performed during a transmission of any
address to the I2C-bus.
not defined
not defined
1997 May 05
17
Philips Semiconductors
Preliminary specification
In Car Entertainment (ICE) car radio
TEA6824T
Table 6 Data to be transmitted by the IC for data byte 2
REFERENCED FREQUENCY GENERATION
Table 7 Division ratios
BIT
DESCRIPTION
LSB of the IF-counter
0
1
2
3
4
5
6
7
REFERENCE
FREQUENCY (kHz)(1)
DIVISION RATIO
IF-counter
IF-counter
20500
12300
6150
4100
2460
1230
3
IF-counter
5
IF-counter
10
15
25
50
IF-counter
IF-counter
MSB of the IF-counter
Note
1. All specified frequencies are valid for a crystal
oscillator frequency of 61.5 MHz.
Table 8 Output signal of reference frequency divider
SYMBOL PARAMETER
V10-11(p-p)
MIN.
TYP.
0.4
MAX.
0.5
UNIT
differential output voltage between pins 10 and 11 0.3
(peak-to-peak value)
V
V
V10-4(p-p); V11-4(p-p) single-ended output voltage between pins 10 and 4 0.15
0.2
−
0.3
4
and between pins 11 and 4 (peak-to-peak value)
C10-4; C11-4
output capacitance between pins 10 and 4 and
between pins 11 and 4
−
pF
R10-52; R11-52
output resistance between pins 10 and 52 and
between pins 11 and 52
800
1000
1200
Ω
IF-COUNTER
Table 9 IF-counter sensitivity
SYMBOL
PARAMETER
IF-counter sensitivity
IF-counter sensitivity
CONDITIONS
MIN.
UNIT
V33-34
V37-35
AM mode; m = 0
FM mode
200
200
µV
µV
AM and FM counting windows are 4 or 40 ms. AM counting resolution is 250 or 25 Hz. FM counting resolution is 5 kHz,
625 Hz, 50 kHz or 6.25 kHz. AM-IF-prescaler is divisible by 1. FM-IF-prescaler is divisible by 25 or 200.
1997 May 05
18
Philips Semiconductors
Preliminary specification
In Car Entertainment (ICE) car radio
TEA6824T
B0 B1 B2 B3 B4 B5 B6 B7
8-BIT BINARY COUNTER
FM IF2
FM IF-PRESCALER
÷ 25 /÷ 200
prescaler setting
MHA205
4 ms/40 ms
counter window
AM IF2
Fig.11 IF-counter structure.
IF-counter read out
IF-counter read out as a function of FM or AM position, counter window and prescaler setting
RANGE (kHz)
PRESCALER
RATIO
WINDOW
(ms)
fIF
(kHz)
RESOLUTION
(Hz/count)
FM/AM
READ OUT
MIN.
MAX.
FM
200
200
25
25
1
4
40
4
10700
10700
10700
10700
450
D6H
5CH
B0H
E0H
08H
50H
50000
5000
6250
625
4300
10065
17050
11335
FM
FM
FM(1)
9906.25
10620.63
418.25
11493.75
10779.38
481.75
40
4
AM
AM(1)
250
1
40
450
25
446.83
453.18
Note
1. In position FM with a prescaler ratio of 25, counter window of 40 ms and in position AM with 40 ms counter window
ambiguous counting results within the IF filter bandwidth are obtained. The counting range is 127 counts above and
127 counts below the nominal IF of 10.7 MHz for FM and 450 kHz for AM.
The IF-count windows are valid for a crystal oscillator frequency of 61.5 MHz.
The FM/AM switching is carried out by bit 0 of byte 2 of the received data of the IC.
The IF-counter operates continuously.
The IF-counter and window counter will be reset when the I2C-bus logic detects the address of the IC. This disables
changes in the latches for the IF-counter, while reading this value. If the transmission to the front-end IC is disabled after
the synthesizer loop of the TEA6810T front-end IC has locked to a new frequency, the IF-counter will be available after
the set measuring time.
The IF-counter starts at 0. The IF-counter output are the 8 least significant bits of the counting result.
1997 May 05
19
Philips Semiconductors
Preliminary specification
In Car Entertainment (ICE) car radio
TEA6824T
INTERNAL CIRCUITRY
Table 10 Equivalent pin circuits and pin voltages
DC VOLTAGE (V)
PIN
SYMBOL
EQUIVALENT CIRCUIT
AM
FM
1
2
QDET1
QDET2
4.0
4.0
4.0
4.0
1
39
2
MHA164
3
REFIN1
0
0
3
MHA165
4
5
6
AGND
VDDA1
−
−
5.0
5.0
5.0
5.0
HFBUS1
6
MHA166
7
HFBUS2
5.0
5.0
7
MHA167
1997 May 05
20
Philips Semiconductors
Preliminary specification
In Car Entertainment (ICE) car radio
TEA6824T
DC VOLTAGE (V)
PIN
SYMBOL
XTAL1
EQUIVALENT CIRCUIT
AM
FM
8
9
4.1
4.1
4.1
4.1
XTAL2
8
9
MHA168
10
11
fref(p)
fref(n)
4.9
4.9
4.9
4.9
10
11
MHA169
12
Iref
4.3
4.3
12
MHA170
13
14
FMIF1IN1
FMIF1IN2
2.3
2.3
2.3
2.3
19
20
14
13
MHA171
1997 May 05
21
Philips Semiconductors
Preliminary specification
In Car Entertainment (ICE) car radio
TEA6824T
DC VOLTAGE (V)
PIN
SYMBOL
REFIN2
EQUIVALENT CIRCUIT
AM
FM
15
4.9
4.9
15
MHA172
16
REFIN3
4.9
4.9
16
MHA173
17
18
REFIN4
REFIN5
4.9
4.9
4.9
4.9
17
MHA174
18
MHA175
19
20
FMIF2OUT1
FMIF2OUT2
8.5
8.5
8.5
8.5
19
20
14
13
MHA171
1997 May 05
22
Philips Semiconductors
Preliminary specification
In Car Entertainment (ICE) car radio
TEA6824T
DC VOLTAGE (V)
PIN
SYMBOL
EQUIVALENT CIRCUIT
AM
FM
21
Vref
5.1
5.1
21
MHA176
22
23
AMIF2OUT1
AMIF2OUT2
8.5
8.5
8.5
8.5
22
23
MHA177
24
FMAMDEC
3.0
2.5
24
MHA178
25
26
DEC1
DEC2
2.8 to 7.0
2.8 to 7.2
25
MHA179
0.4
0.4 to 7.0
26
MHA180
1997 May 05
23
Philips Semiconductors
Preliminary specification
In Car Entertainment (ICE) car radio
TEA6824T
DC VOLTAGE (V)
PIN
SYMBOL
EQUIVALENT CIRCUIT
AM
FM
27
FMAM10.7
3.0
2.5
27
MHA181
28
29
VDDA2
8.5
6.0
8.5
6.0
FMIFAMPOUT
29
MHA182
30
31
32
33
34
n.c.
n.c.
n.c.
AMIF2IN1
AMIF2IN2
2.7
2.7
0.7
0.7
33
34
MHA186
35
FMIN2
0.7
2.7
35
MHA187
36
37
DCFEED
FMIN1
2.7
0.7
2.7
2.7
36
37
MHA188
1997 May 05
24
Philips Semiconductors
Preliminary specification
In Car Entertainment (ICE) car radio
TEA6824T
DC VOLTAGE (V)
PIN
SYMBOL
EQUIVALENT CIRCUIT
AM
FM
38
LEVELADJ
2.6
2.6
38
MHA189
39
CAFC
1.0 to 2.2
1.0 to 7.0
1
39
2
MHA164
40
MPBUF
0.7 to 6.0
0.7 to 6.0
40
MHA190
41
42
n.c.
FMSTOP
0 to 5.2
0 to 5.2
42
MHA192
43
MPXOUT
0 to 5.2
3.0
43
MHA193
44
45
46
47
n.c.
n.c.
n.c.
n.c.
1997 May 05
25
Philips Semiconductors
Preliminary specification
In Car Entertainment (ICE) car radio
TEA6824T
DC VOLTAGE (V)
PIN
SYMBOL
EQUIVALENT CIRCUIT
AM
FM
48
AMAFOUT
3.7
4.8
48
MHA198
49
50
DEC3
1.0 to 5.5
1.0 to 5.5
1.0 to 7.0
49
MHA721
LEVELUNWEIG 1.0 to 7.0
50
MHA200
51
52
53
n.c.
VDDD
SDA
5.0
5.0
5.0
5.0
53
MHA202
54
SCL
5.0
5.0
54
MHA203
55
56
DGND
VDDA3
0
0
8.5
8.5
1997 May 05
26
Philips Semiconductors
Preliminary specification
In Car Entertainment (ICE) car radio
TEA6824T
APPLICATION INFORMATION
220 nF
47 Ω
VCC
+8.5 V
o
2.2 MΩ
220
µH
1 mH
33 µH
10 nF
68 µH
10 pF
6.8 µH
100 nF
47 µF
270 pF 270 pF
470 Ω
100 nF
220 Ω
8.2 pF
19
18
3.3
µH
100
Ω
22
26
AM/FM
21
BAND-
GAP
100 nF
BF861
330 pF
AM -
RF
16
15
26
A
AM/FM
BAV
99
AM
22 pF
TR4
330
25
27
100 pF
470 Ω
1 µF
pF
P392BE-2049AJ = S
388BN-1211Z
47 mH
100 pF
28
29
LIMITER
:N2
AGC
33 µF
220 kΩ
22 Ω
TEA6810T
33
330 nH
5.6 pF
B
C
1 µF
6.8
pF
10 pF
AGC
FM
L1
ZS369SCS-2144AJ
TR2
BB804
11
12
30
31
D
1 nF
AM/FM
56
pF
E543SNAS
-04011
10 pF
47 kΩ
10 µF
1 nF
22 Ω
22 nF
BUFFER
32
34
PIN
DIODE
DRIVE
22 Ω
PROGRAMABLE
DIVIDER
1SV
172
1 µF
1
6
BUFFER
38
47 kΩ
100 nF
E
F
PHASE
DETECTOR
7
2
VCC
+8.5 V
100 µF
E543SNAS
1.8 pF
-02010
37
SDA
SCL
4
5
AM/FM
I2C-BUS
CONTROL
G
H
1.8
pF
2.7 pF
35
36
OSCILLATOR
L7
10 kΩ 10 kΩ
9
8
BB135
2.2 kΩ
4 to 10 pF
AM/FM
100
nF
39
40
LOCK
DETECTOR
CHARGE
PUMP
100
nF
10 kΩ
AM/FM
47 pF
3.3
nF
3.6 kΩ
13
100 nF
14
10 17 20
3
12 nF
VCC
+8.5 V
I
47 µF
MHA538
VCCD
+5 V
µH
3.3
VCCA
+5 V
IN-LOCK
+8.5 V
Fig.12 Application diagram (continued in Fig.13).
27
1997 May 05
Philips Semiconductors
Preliminary specification
In Car Entertainment (ICE) car radio
TEA6824T
bnok,lfuapgedwith
1 kΩ
V
V
TOKO
P392BC-1977Z
MPX
ref
ref
+8.5 V
7PSAG-
1946D = S
SFP450
1.5 nF
AMAF
33 kΩ
FMSTOP
LEVELADJ
68 Ω
AMSTOP
100 kΩ
10
nF
L13
62 pF
100 kΩ
R40
100 kΩ
2.7
kΩ
330 Ω
SFE10.7
TR5
10 nF
R51
R39
100
nF
2.2 nF
47 µF
39
33 kΩ
22 kΩ
100 nF
SFE10.7
4.3 kΩ
BF840
1
2
22
23
33
34
42
36
38
43
48
220 nF
25
37
27 Ω
330
Ω
390
AM/FM
SWITCH
FM LIMITER
AM AMPLIFIER
MPX
BUFFER
Ω
AFC
820 kΩ
35
27
24
26
LEVEL
DETECTOR
100 nF
AM
A
10 nF
3
AM
DELOG
AMPLIFIER
SFE10.7
22 nF
÷ 2 /÷ 6
15
16
LEVEL
IF
:N5
28
AMPLIFIER
AMPLIFIER
100 nF
47 kΩ
29
19
V
ref
21
B
C
17
18
20
13
20 kHz
ZS369SCS-2144AJ TR3
56 pF
FM
30
D
n.c.
31
n.c.
14
BUFFER
TEA6824T
32
n.c.
10 nF
41
n.c.
44
8
9
n.c.
9922 521 00098
PHILIPS
ADC
MULTI-
PATH
ADC
LEVEL
45
n.c.
OSCILLATOR
or Daiwa AT - 49
46
n.c.
61.5 MHz
47
n.c.
51
10
11
n.c.
E
F
REFERENCE
FREQUENCY
IF
COUNTER
22 µH
+8.5 V
56
100
47 µF
nF
SDA
SCL
6
7
V
V
INT1
G
H
I2C-BUS
SUPPLY
4
INT2
470 nF
120 kΩ
TK
COMPEN-
SATION
12
5
10 Ω
V
CCA
+5 V
54
53
330
55
40
50
49
52
33 µF
330
100
nF
47 µF
Ω
Ω
10 kΩ
10 kΩ
I
220 nF
100 nF
10 Ω
LEVEL
SCL
SDA
V
CCD
+5 V
MHA539
Fig.13 Application diagram (continued from Fig.12).
28
1997 May 05
VCCA
+5 V
VCCD
+5 V
VCC
+8.5 V
lock
detector
P392BC-1977Z
22 µH
VCC
+8.5 V
56
1
100 µF
22 Ω
100 nF
4.3 kΩ
62 pF
L13
10 Ω
47 µF
33 µH
3.3 nF
10 kΩ
100 nF
10 nF
40
1
SCL
SDA
330 Ω
330 Ω
3.9 kΩ
22 nF
1.8 pF
100 nF
2.2 kΩ
BB135
10 kΩ 10 kΩ
10 Ω
33 µF
33 µF
100 nF
VCCD
+5 V
5
47 pF
SDA
SCL
E543SNAS-02010
L7
5
50
LEVEL
AMAF
2.7 pF
100 nF
10 nF
2.2 nF
35
1.4 to 10 pF
1.8 pF
10 kΩ
10 kΩ
1 µF
61.5 MHz
1SV172
47 kΩ
220 kΩ
10
F
ref
1 µF
100 pF
6.8 pF
100 nF
330 nH
L1
470 nF
BB
804
10 pF
10 pF
S369SCS-2144AJ (2x)
TR3
10
15
20
45
TEA6810T
5.6 pF
120 kΩ
TR2
30
E543SNAS
-4011
56 pF
33 kΩ
56 pF
TEA6824T
MPX
AMSTOP
100 kΩ
R51
100 kΩ
33 µF
1 µF
47 kΩ
10 nF
1 nF
47 µF
15
220 µH
FMSTOP
100
nF
R39
22 nF
TR4
10 pF
220 nF
3.3 µH
220 nF
47 µF
22 kΩ
33 kΩ
220 Ω
100 nF
330 pF
40
PS392BE-
2049AJ = S
Vref
3.3 µH
BF861A
25
R40
100 kΩ
100 nF
100 pF
100 Ω
330 pF
LEVELADJ
SFE10.7
47 kΩ
22 pF
20
47 mH
8.2 pF
BAV
99
100 nF
100 nF
388BN-1211Z
V
330
Ω
ref
7PSAG-1946D = S
100
nF
2.2 MΩ
470 Ω
35
1.5 nF
TR5
100 nF
21
68
Ω
470 Ω
22 nF
220 nF
10 nF
330
2.7 kΩ
Ω
68 µH
10 nF
33 µH
1 mH
BF840
25
28
270 pF
270 pF
47 µF
390 Ω
27 Ω
820 kΩ
SFE10.7
30
29
100 nF
SFP450
SFE10.7
MHA540
Fig.14 AM/FM car radio receiver with TEA6810T and TEA6824T.
ahdnbok,uflapegwidt
Philips Semiconductors
Preliminary specification
In Car Entertainment (ICE) car radio
TEA6824T
PACKAGE OUTLINE
VSO56: plastic very small outline package; 56 leads; face down
SOT190-2
H
v
M
A
E
y
X
c
D
A
E
Z
56
29
L
L
p
θ
A
1
(A )
3
A
A
2
Q
pin 1 index
detail X
1
28
w
M
b
p
e
0
5
10 mm
scale
DIMENSIONS (inch dimensions are derived from the original mm dimensions)
A
max.
(1)
(2)
(1)
UNIT
mm
A
A
A
b
c
D
E
e
H
L
L
Q
v
w
y
Z
θ
1
2
3
p
E
p
0.3
0.1
3.0
2.8
0.42
0.30
0.22 21.65 11.1
0.14 21.35 11.0
15.8
15.2
1.6
1.4
1.45
1.30
0.90
0.55
3.3
0.25
0.01
0.75
2.25
0.2
0.1
0.1
7o
0o
0.012 0.12
0.004 0.11
0.017 0.0087 0.85
0.012 0.0055 0.84
0.44
0.43
0.62
0.60
0.063 0.057
0.055 0.051
0.035
0.022
inches
0.008 0.004 0.004
0.0295
0.089
0.13
Note
1. Plastic or metal protrusions of 0.3 mm maximum per side are not included.
2. Plastic interlead protrusions of 0.25 mm maximum per side are not included.
REFERENCES
OUTLINE
EUROPEAN
PROJECTION
ISSUE DATE
VERSION
IEC
JEDEC
EIAJ
96-04-02
97-08-11
SOT190-2
1997 May 05
30
Philips Semiconductors
Preliminary specification
In Car Entertainment (ICE) car radio
TEA6824T
SOLDERING
Introduction
Wave soldering
Wave soldering techniques can be used for all VSO
packages if the following conditions are observed:
There is no soldering method that is ideal for all IC
packages. Wave soldering is often preferred when
through-hole and surface mounted components are mixed
on one printed-circuit board. However, wave soldering is
not always suitable for surface mounted ICs, or for
printed-circuits with high population densities. In these
situations reflow soldering is often used.
• A double-wave (a turbulent wave with high upward
pressure followed by a smooth laminar wave) soldering
technique should be used.
• The longitudinal axis of the package footprint must be
parallel to the solder flow.
• The package footprint must incorporate solder thieves at
the downstream end.
This text gives a very brief insight to a complex technology.
A more in-depth account of soldering ICs can be found in
our “IC Package Databook” (order code 9398 652 90011).
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.
Reflow soldering
Reflow soldering techniques are suitable for all VSO
packages.
Maximum permissible solder temperature is 260 °C, and
maximum duration of package immersion in solder is
10 seconds, if cooled to less than 150 °C within
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.
6 seconds. 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.
Several techniques exist for reflowing; for example,
thermal conduction by heated belt. Dwell times vary
between 50 and 300 seconds depending on heating
method. Typical reflow temperatures range from
215 to 250 °C.
Repairing soldered joints
Fix the component by first soldering two diagonally-
opposite end leads. Use only a low voltage soldering iron
(less than 24 V) applied to the flat part of the lead. Contact
time must be limited to 10 seconds at up to 300 °C. When
using a dedicated tool, all other leads can be soldered in
one operation within 2 to 5 seconds between
270 and 320 °C.
Preheating is necessary to dry the paste and evaporate
the binding agent. Preheating duration: 45 minutes at
45 °C.
1997 May 05
31
Philips Semiconductors
Preliminary specification
In Car Entertainment (ICE) car radio
TEA6824T
DEFINITIONS
Data sheet status
Objective specification
Preliminary specification
Product specification
This data sheet contains target or goal specifications for product development.
This data sheet contains preliminary data; supplementary data may be published later.
This data sheet contains final product specifications.
Limiting values
Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). 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.
Application information
Where application information is given, it is advisory and does not form part of the specification.
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 customers using or selling these products for
use in such applications do so at their own risk and agree to fully indemnify Philips for any damages resulting from such
improper use or sale
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.
1997 May 05
32
Philips Semiconductors
Preliminary specification
In Car Entertainment (ICE) car radio
TEA6824T
NOTES
1997 May 05
33
Philips Semiconductors
Preliminary specification
In Car Entertainment (ICE) car radio
TEA6824T
NOTES
1997 May 05
34
Philips Semiconductors
Preliminary specification
In Car Entertainment (ICE) car radio
TEA6824T
NOTES
1997 May 05
35
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Building BE-p, P.O. Box 218, 5600 MD EINDHOVEN, The Netherlands, Fax. +31 40 27 24825
© Philips Electronics N.V. 1997
SCA54
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
547027/1200/02/pp36
Date of release: 1997 May 05
Document order number: 9397 750 01772
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