TEA6820T-T [NXP]

IC AM/FM, AUDIO SINGLE CHIP RECEIVER, PDSO56, PLASTIC, SOT-190-2, VSOP-56, Receiver IC;
TEA6820T-T
型号: TEA6820T-T
厂家: NXP    NXP
描述:

IC AM/FM, AUDIO SINGLE CHIP RECEIVER, PDSO56, PLASTIC, SOT-190-2, VSOP-56, Receiver IC

光电二极管 商用集成电路
文件: 总48页 (文件大小:351K)
中文:  中文翻译
下载:  下载PDF数据表文档文件
INTEGRATED CIRCUITS  
DATA SHEET  
TEA6820T; TEA6822T  
In Car Entertainment (ICE) car  
radio  
1997 Feb 12  
Preliminary specification  
Supersedes data of 1996 Oct 18  
File under Integrated Circuits, IC01  
Philips Semiconductors  
Preliminary specification  
In Car Entertainment (ICE) car radio  
TEA6820T; TEA6822T  
FEATURES  
General  
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  
Stereo decoder  
FM-IF gain stage  
Adjustment-free PLL VCO  
Crystal oscillator providing mixer frequencies and  
references for IF-count and stereo decoder  
Pilot depending mono/stereo switching  
Analog control of mono/stereo blend  
Adjacent channel noise suppression (114 kHz)  
Pilot cancelled  
FM quadrature demodulator with automatic centre  
frequency adjustment and THD compensation  
Level, multi-path and noise detectors  
Soft mute  
Analog control of de-emphasis  
Stereo noise cancelling and variable de-emphasis  
PLL stereo decoder  
Integrated low-pass filters for 190 kHz adjacent channel  
interferences and signal delay for interference  
absorption circuit.  
Noise blanker  
AM IF-amplifier and demodulator  
GENERAL DESCRIPTION  
I2C-bus transceiver with interface to enable direct data  
transfer to radio front-end  
The TEA6820T together with the TEA6810T and the  
TEA6822T together with the TEA6811T forms an AM/FM  
electronic tuned car radio in a double conversion receiver  
concept.  
IF-count for AM and FM  
Reference frequency generation for PLL synthesizer.  
ORDERING INFORMATION  
PACKAGE  
TYPE NUMBER  
NAME  
VSO56  
VSO56  
DESCRIPTION  
VERSION  
SOT190-2  
SOT190-1  
TEA6820T  
TEA6822T  
plastic very small outline package; 56 leads; face down  
plastic very small outline package; 56 leads  
1997 Feb 12  
2
Philips Semiconductors  
Preliminary specification  
In Car Entertainment (ICE) car radio  
TEA6820T; TEA6822T  
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  
mA  
V
AM mode  
14  
17  
21  
I19 + I20  
I22 + I23  
VDDA2  
total FM mixer output current  
total AM mixer output current  
analog supply voltage 2 (pin 28)  
4.8  
10  
6.0  
12  
7.2  
14  
note 1  
7.0  
8.1  
2.4  
7.0  
8.1  
19  
8.5  
8.5  
3.0  
8.5  
8.5  
24  
10  
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  
28  
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  
pins 43 and 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
%
αcs  
channel separation (adjusted)  
operating ambient temperature  
40  
40  
dB  
°C  
Tamb  
+85  
Note  
1. IC is operating; specified parameters may deviate from limits which are valid for operating range.  
1997 Feb 12  
3
Philips Semiconductors  
Preliminary specification  
In Car Entertainment (ICE) car radio  
TEA6820T; TEA6822T  
BLOCK DIAGRAM  
HM2A53  
,
1997 Feb 12  
4
Philips Semiconductors  
Preliminary specification  
In Car Entertainment (ICE) car radio  
TEA6820T; TEA6822T  
PINNING  
SYMBOL  
QDET1  
PIN  
DESCRIPTION  
demodulator tank 1  
SYMBOL  
PIN  
DESCRIPTION  
1
2
3
4
5
6
FMIFAMPOUT  
AFGND  
29 FM-IF amplifier output  
30 AF ground  
QDET2  
TSWITCH  
AGND  
demodulator tank 2  
time switch input  
DEEMPHR  
DEEMPHL  
AMIF2IN1  
AMIF2IN2  
FMIN2  
31 de-emphasis capacitor right  
32 de-emphasis capacitor left  
33 AM-IF2 input 1  
analog ground  
VDDA1  
analog supply voltage 1 (+5 V)  
HFBUS1  
HF bus 1 output;  
pull-up to +5 V  
34 AM-IF2 input 2  
35 FM limiter input  
HFBUS2  
7
HF bus 2 output;  
pull-up to +5 V  
DCFEED  
FMIN1  
36 DC feed FM limiter  
37 FM limiter input  
XTAL1  
XTAL2  
fref(p)  
8
9
crystal oscillator 1  
crystal oscillator 2  
LEVELADJ  
CAFC  
38 level adjustment input  
39 AFC capacitor  
10 PLL reference frequency  
output (p)  
MPBUF  
40 multi-path buffer time constant  
41 AF output left  
OUTLEFT  
FMSTOP  
RDS/AMSTOP  
fref(n)  
11 PLL reference frequency  
output (n)  
42 FMSTOP adjustment input  
43 MPX for RDS/AMSTOP  
adjustment input  
Iref  
12 reference current  
FMIF1IN1  
FMIF1IN2  
TSDR  
13 72 MHz FM-IF input 1  
14 72 MHz FM-IF input 2  
15 time constant for SDR  
16 time constant for SDS  
17 SDS control voltage input  
18 SDR control voltage input  
19 FM mixer output 1  
OUTRIGHT  
MPXIN  
44 AF output right  
45 stereo decoder MPX input  
46 internally connected  
i.c.  
TSDS  
MPXOUT  
AMAFOUT  
Vmute/AML  
47 FM demodulator MPX output  
48 AM demodulator AF output  
49 mute voltage/AM level  
VSDS  
VSDR  
FMIF2OUT1  
FMIF2OUT2  
Vref  
LEVELUNWEIG 50 unweighted level output  
20 FM mixer output 2  
IACCONTR  
VDDD  
51 IAC control voltage  
52 digital supply voltage  
21 reference voltage output  
22 AM mixer output 1  
AMIF2OUT1  
AMIF2OUT2  
FMAMDEC  
PHASEDET  
PILDET  
FMAM10.7  
VDDA2  
SDA  
53 serial data input/output;  
pull-up to +5 V  
23 AM mixer output 2  
24 FM/AM 10.7 MHz decoupling  
25 phase detector output  
26 pilot detector output  
27 FM/AM 10.7 MHz input  
28 analog supply voltage 2  
SCL  
54 serial clock input;  
pull-up to +5 V  
DGND  
VDDA3  
55 digital ground  
56 analog supply voltage 3  
(+8.5 V)  
1997 Feb 12  
5
Philips Semiconductors  
Preliminary specification  
In Car Entertainment (ICE) car radio  
TEA6820T; TEA6822T  
handbook, halfpage  
handbook, halfpage  
V
56  
1
2
3
4
5
6
7
8
9
QDET1  
QDET2  
TSWITCH  
AGND  
1
2
56  
V
DDA3  
QDET1  
DDA3  
DGND 55  
SCL 54  
SDA 53  
55 DGND  
54 SCL  
53 SDA  
QDET2  
3
TSWITCH  
AGND  
4
V
52  
51  
V
5
52  
V
DDD  
V
DDD  
DDA1  
DDA1  
IAC  
CONTR  
HFBUS1  
HFBUS2  
XTAL1  
6
51 IAC  
HFBUS1  
HFBUS2  
XTAL1  
CONTR  
50 LEVELUNWEIG  
LEVELUNWEIG 50  
49  
7
V
8
49  
V
mute/AML  
mute/AML  
AMAFOUT 48  
MPXOUT 47  
i.c. 46  
XTAL2  
XTAL2  
9
48 AMAFOUT  
47 MPXOUT  
46 i.c.  
10 f  
11 f  
12 I  
f
10  
11  
12  
ref(p)  
ref(n)  
ref  
ref(p)  
f
ref(n)  
MPXIN 45  
I
45 MPXIN  
ref  
OUTRIGHT 44  
RDS/AMSTOP 43  
FMSTOP 42  
OUTLEFT 41  
MPBUF 40  
13 FMIF1IN1  
14 FMIF1IN2  
15 TSDR  
FMIF1IN1 13  
FMIF1IN2 14  
TSDR 15  
44 OUTRIGHT  
43 RDS/AMSTOP  
42 FMSTOP  
41 OUTLEFT  
40 MPBUF  
TEA6820T  
TEA6822T  
16 TSDS  
TSDS 16  
17 V  
SDS  
V
V
17  
18  
SDS  
C
39  
18 V  
SDR  
39  
38  
37  
C
AFC  
AFC  
SDR  
LEVELADJ 38  
FMIN1 37  
19 FMIF2OUT1  
20 FMIF2OUT2  
FMIF2OUT1 19  
FMIF2OUT2 20  
LEVELADJ  
FMIN1  
DCFEED 36  
FMIN2 35  
21 V  
ref  
V
21  
36 DCFEED  
ref  
22 AMIF2OUT1  
23 AMIF2OUT2  
24 FMAMDEC  
25 PHASEDET  
26 PILDET  
AMIF2OUT1 22  
AMIF2OUT2 23  
FMAMDEC 24  
PHASEDET 25  
PILDET 26  
35  
34  
33  
32  
31  
30  
FMIN2  
AMIF2IN2 34  
AMIF2IN1 33  
DEEMPHL 32  
DEEMPHR 31  
AFGND 30  
AMIF2IN2  
AMIF2IN1  
DEEMPHL  
DEEMPHR  
AFGND  
FMAM10.7 27  
27 FMAM10.7  
V
28  
29 FMIFAMPOUT  
FMIFAMPOUT 29  
28 V  
DDA2  
DDA2  
MHA419  
MHA204  
Fig.2 Pin configuration for TEA6822T.  
Fig.3 Pin configuration for TEA6820T (top view).  
A 3rd order low-pass filter (fg = 90 kHz) at the MPX input  
provides an extra 190 kHz ACI suppression.  
FUNCTIONAL DESCRIPTION  
Stereo decoder  
An interference gate is connected at the MPX demodulator  
outputs. For AM the VCO is switched off.  
By changing the value of the input resistor at pin 12 the  
MPX input can be adapted to the level of the FM  
demodulator output (see Fig.16).  
1997 Feb 12  
6
Philips Semiconductors  
Preliminary specification  
In Car Entertainment (ICE) car radio  
TEA6820T; TEA6822T  
LIMITING VALUES  
In accordance with the Absolute Maximum Rating System (IEC 134).  
SYMBOL  
VDDA1  
PARAMETER  
CONDITIONS  
MIN.  
0.3  
MAX.  
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  
+6.5  
+12  
V
VDDA2  
VDDA3  
VDDD  
Tstg  
0.3  
0.3  
0.3  
55  
V
+12  
V
+6.5  
+150  
+85  
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 series resistor.  
CHARACTERISTICS  
V56-4 = V28-4 = 8.5 V; V5-4 = V52-55 = 5 V; Tamb = 25 °C; fmod = 1 kHz; deviation = 22.5 kHz; Rg = 50 ; V37-35 = 10 mV;  
with de-emphasis = 50 µs; coil quality = 15; 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  
28  
15  
12  
7.2  
14  
mA  
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  
24  
12  
10  
6.0  
12  
IDDD  
digital supply current (pin 52)  
total FM mixer output current  
total AM mixer output current  
I19 + I20  
I22 + I23  
4.8  
10  
AM mode  
FM-IF path; see Fig.4  
V19-20 max(p-p) maximum output voltage  
12.0 14.0  
V
(peak-to-peak value)  
I19; I20  
mixer bias current  
2.4  
3.0  
3.6  
2
mA  
µA  
mS  
kΩ  
pF  
mixer leakage current  
in AM position  
I19IF2/V13-14IF1  
conversion gain  
1.65 1.9  
2.2  
Ri  
input resistance (pins 13 to 14)  
input capacitance (pins 13 to 14)  
optimum generator resistance  
output resistance (pins 19 to 20)  
5
7
Ci  
3
4.5  
Ropt  
Ro  
Co  
1.2  
20  
12  
kΩ  
kΩ  
pF  
15  
output capacitance (pins 19 to 4  
and pins 20 to 4)  
14  
IP3  
third order intermodulation  
114  
124  
dBµV  
1997 Feb 12  
7
Philips Semiconductors  
Preliminary specification  
In Car Entertainment (ICE) car radio  
TEA6820T; TEA6822T  
SYMBOL  
Oscillator  
PARAMETER  
CONDITIONS  
MIN.  
TYP.  
MAX. UNIT  
fosc  
oscillator frequency  
61.5  
MHz  
Hz  
K1  
fosc  
oscillator frequency spread  
250  
fosc/T  
temperature dependence of  
oscillator frequency  
crystal type PHILIPS  
9922 521 00098  
30 × 106  
R1  
C0  
crystal motional resistance  
crystal shunt capacitance  
70  
5
pF  
FM-IF2 amplifier  
V27-24 max(rms)  
maximum input voltage for 1 dB  
compression point (RMS value)  
80  
220  
9
110  
320  
12  
mV  
mV  
dB  
V29-4 max(rms)  
V29-4/V27-24  
V29-4/V27-24  
maximum output voltage  
(RMS value)  
amplifier gain  
loaded with 330 ;  
see Fig.5  
15  
gain temperature dependence  
25 °C < Tamb < +50 °C  
+50 °C < Tamb < +75 °C  
0.1  
dB/K  
dB/K  
0
Ri  
input resistance (pins 27 to 24)  
input capacitance (pins 27 to 4)  
output resistance (pin 29)  
300  
330  
360  
5
Ci  
pF  
Ro  
Co  
300  
330  
360  
5
output capacitance (pins 29 to 4)  
pF  
FM-IF2 limiter  
Vo 1-2(p-p)  
limiter output voltage  
(peak-to-peak value)  
500  
700  
mV  
V1-2/V37-35  
limiter gain  
see Fig.6  
80  
dB  
pF  
kΩ  
pF  
Ci  
input capacitance (pins 37 to 4)  
output resistance (pins 1 to 2)  
output capacitance (pins 1 to 2)  
5
Ro  
Co  
1.0  
20  
10  
15  
1997 Feb 12  
8
Philips Semiconductors  
Preliminary specification  
In Car Entertainment (ICE) car radio  
TEA6820T; TEA6822T  
SYMBOL  
PARAMETER  
CONDITIONS  
MIN.  
TYP.  
MAX. UNIT  
FM demodulator  
V47-4(rms)  
V43-4(rms)  
MPX output voltage (RMS value)  
160  
160  
200  
240  
240  
mV  
mV  
MPX output voltage for RDS  
(RMS value)  
200  
V37-35(rms)  
V37-35(rms)  
start of limiting voltage  
(RMS value)  
αAF = 3 dB  
25  
40  
µV  
input voltage for signal plus  
see Fig.7 for pin 47  
noise-to-noise ratio (RMS value)  
(MPXOUT) and Fig.8 for  
pin 43 (RDS/AMSTOP)  
30  
70  
45  
µV  
µV  
S + N  
= 26 dB  
= 46 dB  
--------------  
N
100  
S + N  
--------------  
N
V43DC  
residual DC-offset voltage  
AM suppression  
Ldemod = typical value  
10 µV < V37-35 < 80 µV  
100  
10  
1000 mV  
80 µV < V37-35 < 800 mV −  
f = 22.5 kHz; 50  
modAM = 1 kHz;  
30  
mV  
dB  
V43FM/V43AM  
60  
f
mAM = 30%;  
V37-35 = 3 to 300 mV  
V47FM/V47AM  
AM suppression  
V37-35 = 1 to 300 mV  
50  
28  
60  
32  
dB  
dB  
V43-44AFCdis  
demodulator frequency control  
/V43-44AFCactive voltage (AFC) efficiency at  
100 kHz detune from exact tuning  
Ro  
output resistance (pin 47)  
output resistance (pin 43)  
AF bandwidth (pin 43)  
3
kΩ  
kΩ  
kHz  
dB  
1.5  
200  
66  
signal plus noise-to-noise ratio  
75  
S + N  
--------------  
N
THD  
total harmonic distortion  
detuning 50 kHz;  
f = 75 kHz; fmod = 1 kHz  
without de-emphasis;  
Ldemod = typical value  
pin 43;  
V37-35 = 300 µV  
to 800 mV  
0.1  
0.1  
0.35  
0.35  
%
%
pin 47;  
V37-35 = 1 to 800 mV  
1997 Feb 12  
9
Philips Semiconductors  
Preliminary specification  
In Car Entertainment (ICE) car radio  
TEA6820T; TEA6822T  
SYMBOL  
PARAMETER  
CONDITIONS  
MIN.  
TYP.  
MAX. UNIT  
Unweighted voltage level  
V50-4  
unweighted voltage level  
see Fig.9; V38 = 2.52 V  
V
37-35 2.5 µV  
1.6  
2.7  
2.2  
3.4  
3.0  
4.7  
V
V
V37-35 = 1.0 mV  
V50-4/V37-35  
slope of unweighted voltage level 100 µV (RMS) V37-35  
< 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/VK  
temperature dependence  
V37-35 = 1 mV  
temperature  
compensation off  
5.0  
2.0  
mV/VK  
mV/VK  
temperature  
compensation on  
I50(max)source  
I50(max)sink  
Ro50  
maximum output source current  
maximum output sink current  
output resistance  
0.3  
50  
mA  
µA  
300  
ADJUSTMENT OF UNWEIGHTED VOLTAGE LEVEL AND Vmute/AML; note 1  
V50  
adjusting range voltage  
internal bias voltage  
adjusting gain  
V37-35 = 10 mV (RMS)  
1.8  
+1.8  
V
V38-4  
2.6  
0.9  
80  
V
V50-4/V38-4  
Ri38  
input resistance  
kΩ  
MUTING DEPENDENCE ON ADJUST OF LEVEL UNWEIGHTED VOLTAGE; note 2  
α = V43/V47  
α/V49  
start of mute  
mute slope  
V49/V21 = 0.625  
1
3
7
dB  
α = 6 dB  
25  
dB/V  
Soft mute, time constant control, mono/stereo blend and high-cut control; see Fig.22  
MUTE VOLTAGE; note 3  
V49-4  
mute voltage  
V38 = 2.52 V  
V37-35 < 2.5 µV  
1.8  
2.7  
2.2  
3.4  
3.2  
4.7  
V
V
V
37-35 = 1.0 mV  
V49-4/V37-35  
V49-4/VK  
slope of mute voltage  
100 µV (RMS) V37-35  
< 300 mV  
0.75 0.9  
1.05 V/20 dB  
temperature dependence  
V37-35 = 1 mV  
5.0  
mV/VK  
1997 Feb 12  
10  
Philips Semiconductors  
Preliminary specification  
In Car Entertainment (ICE) car radio  
TEA6820T; TEA6822T  
SYMBOL  
PARAMETER  
CONDITIONS  
MIN.  
TYP.  
MAX. UNIT  
ATTACK AND DECAY TIME FOR MUTE VOLTAGE  
I49  
charge current  
discharge current  
charge current  
discharge current  
pin 3 connected to GND  
pin 3 connected to GND  
pin 3 connected to pin 5  
pin 3 connected to pin 5  
3.5  
µA  
µA  
µA  
µA  
4.0  
150  
170  
f  
muting activated by 60 kHz FM  
interference  
V49 < 3 V; V37-35 = 3 mV;  
fmod = 60 kHz  
pin 3 connected to GND;  
V43/V47 = 9 dB  
40  
40  
kHz  
kHz  
pin 3 connected to pin 5;  
V43/V47 = 6 dB  
V43/V47  
maximum mute depth by 60 kHz  
FM interference  
pin 3 connected to GND  
pin 3 connected to pin 5  
15  
10  
dB  
dB  
TIME CONSTANT FOR MONO/STEREO BLEND VOLTAGE; note 4  
I16  
charge current  
discharge current  
charge current  
discharge current  
V37-35 = 3 mV;  
pin 3 connected to GND  
0.6  
µA  
µA  
µA  
µA  
V37-35 = 3 mV;  
pin 3 connected to GND  
17  
23  
V37-35 = 3 mV;  
pin 3 connected to pin 5  
V37-35 = 3 mV;  
750  
pin 3 connected to pin 5  
m
mono/stereo blend activated by  
20 kHz AM interference  
V16 < 2 V; V37-35 = 3 mV;  
RL16 > 50 M;  
fmod = 20 kHz;  
data byte 2 bit 5 = 0  
pin 3 connected to GND  
pin 3 connected to pin 5  
data byte 2 bit 5 = 1  
45  
45  
%
%
pin 3 connected to GND  
pin 3 connected to pin 5  
55  
55  
%
%
f  
mono/stereo blend activated by  
60 kHz FM interference  
V16 < 2 V; V37-35 = 3 mV;  
RL16 > 50 M;  
fmod = 60 kHz  
pin 3 connected to GND  
pin 3 connected to pin 5  
50  
50  
kHz  
kHz  
1997 Feb 12  
11  
Philips Semiconductors  
Preliminary specification  
In Car Entertainment (ICE) car radio  
TEA6820T; TEA6822T  
SYMBOL  
PARAMETER  
CONDITIONS  
MIN.  
TYP.  
MAX. UNIT  
TIME CONSTANT FOR HIGH-CUT CONTROL VOLTAGE SDR; note 5  
I15  
charge current  
discharge current  
charge current  
discharge current  
V37-35 = 3 mV;  
pin 3 connected to GND  
0.6  
µA  
µA  
µA  
µA  
V37-35 = 3 mV;  
pin 3 connected to GND  
0.7  
41  
V37-35 = 3 mV;  
pin 3 connected to pin 5  
V37-35 = 3 mV;  
44  
pin 3 connected to pin 5  
m
high-cut control activated by  
20 kHz AM interference  
V15 < 2 V; V37-35 = 3 mV;  
R
L15 > 50 M;  
fmod = 20 kHz  
pin 3 connected to GND  
pin 3 connected to pin 5  
45  
45  
%
%
f  
high-cut control activated by  
60 kHz FM interference  
V15 < 2 V; V37-35 = 3 mV;  
RL15 > 50 M;  
fmod = 60 kHz  
pin 3 connected to GND  
pin 3 connected to pin 5  
50  
50  
kHz  
kHz  
MULTI-PATH DETECTOR  
fMP  
multi-path detector band-pass  
centre frequency  
20  
kHz  
kHz  
BMP  
band-pass bandwidth  
7.0  
Reference voltage  
V21-4  
V21-4  
I21  
output voltage  
I21 = 1 mA  
4.5  
5.1  
3.3  
5.7  
V
temperature dependence  
output current  
mV/VK  
mA  
1
AM-IF path; see Fig.14 and notes 6 and 7  
V22-23 max(p-p)  
maximum output voltage  
(peak-to-peak value)  
12  
15  
V
I22, I23  
mixer bias current  
mixer leakage current  
conversion gain  
5.0  
6.0  
7.0  
2
mA  
µA  
in FM position  
I22IF2/V27-24IF1  
R27-24  
2.2  
300  
2.7  
330  
5
3.4  
360  
8
mS  
input resistance  
C27-24  
input capacitance  
output resistance  
pF  
R22-23  
10.0 20.0  
kΩ  
pF  
C22-23  
output capacitance  
third order intermodulation  
5
10  
IP3  
137  
dBµV  
1997 Feb 12  
12  
Philips Semiconductors  
Preliminary specification  
In Car Entertainment (ICE) car radio  
TEA6820T; TEA6822T  
SYMBOL  
PARAMETER  
CONDITIONS  
MIN.  
TYP.  
MAX. UNIT  
AM DETECTOR; notes 8 and 9  
V48-4(rms)  
AF output level (RMS value)  
RL48 > 500 k;  
100 µV V33-34 300 mV  
190  
240  
290  
75  
mV  
V33-34(rms)  
sensitivity voltage (RMS value)  
50  
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  
AM-IF2 maximum input voltage  
(RMS value)  
800  
mV  
R33-34  
C24-23  
Ro48  
IF2 input resistance  
1.8  
2.0  
10  
33  
2.2  
15  
39  
10  
kΩ  
pF  
kΩ  
pF  
dB  
IF2 input capacitance  
output resistance  
27  
Co48  
output capacitance  
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 Figs 10 and 13.  
2. For typical curve see Fig.11.  
3. The static mute voltage follows the unweighted voltage level as function of FM-IF2 voltage and level adjustment  
voltage V38-4. It additionally depends on multi-path level, noise (adjacent channel interferences) and the position of  
TSWITCH (pin 3). For typical curve for mute voltage dependence see Fig.12.  
4. The mono/stereo blend voltage is generated as a function of FM-IF2 voltage, multi-path level, noise and position of  
TSWITCH.  
5. The high-cut control voltage is generated as a function of FM-IF2 voltage, multi-path level, noise and position of  
TSWITCH.  
6. fIF1 = 10.7 MHz; fIF2 = 450 kHz for AM mixer.  
7. The AM oscillator signal is generated by division of the 61.5 MHz crystal oscillator. Two divider ratios programmable  
by the I2C-bus: divide by 6 (AM-IF1 = 10.7 MHz); divide by 2 (AM-IF1 = 30 MHz).  
8. For typical AM level curve see Fig.15.  
9. For AM detector; fAMIF2 = 450 kHz; fmod = 400 Hz; m = 30%.  
1997 Feb 12  
13  
Philips Semiconductors  
Preliminary specification  
In Car Entertainment (ICE) car radio  
TEA6820T; TEA6822T  
STEREO DECODER CHARACTERISTICS  
Input signal (f = 75 kHz) VMPX(p-p) = 1.7 V; modulation frequency fmod = 1 kHz; de-emphasis time constant t = 50 µs;  
nominal input resistor (pin 45) Ri = 168 k; Tamb = 25 °C; unless otherwise specified.  
SYMBOL  
V44-4(rms)  
V41-4(rms)  
V44-4; V41-4  
PARAMETER  
CONDITIONS  
MIN.  
800  
TYP. MAX. UNIT  
900 1000 mV  
;
AF output voltage (RMS value)  
DC output voltage  
3.1  
150  
1  
3.6  
4.1  
V
I44(max); I41(max) maximum output current  
µA  
dB  
V44-4/V41-4  
Ro44; Ro41  
RLmin  
difference of output voltage  
output resistor  
+1  
600  
minimum load resistor  
12  
40  
74  
kΩ  
dB  
dB  
αcs  
channel separation (adjusted)  
signal plus noise-to-noise ratio  
f = 20 Hz to 15 kHz  
THD = 1%  
80  
S + N  
--------------  
N
THD  
total harmonic distortion  
0.1  
0.3  
%
MPX input overdrive margin  
4
dB  
Carrier and harmonic suppression at the output; note 1  
α19  
α38  
α57  
α76  
α2  
pilot signal  
subcarrier  
f = 19 kHz  
50  
50  
50  
60  
60  
58  
70  
dB  
dB  
dB  
dB  
dB  
dB  
dB  
dB  
f = 38 kHz  
f = 57 kHz  
f = 76 kHz  
intermodulation  
fmod = 10 kHz; fspur = 1 kHz  
fmod = 13 kHz; fspur = 1 kHz  
f = 57 kHz  
α3  
α57  
α67  
traffic radio (ARI)  
subsidiary communications  
authorization  
f = 67 kHz  
70  
α114  
α190  
RR  
adjacent channel frequency  
f = 114 kHz  
80  
70  
30  
dB  
dB  
dB  
f = 190 kHz  
ripple rejection at output  
fr = 100 Hz; Vr = 100 mVeff  
Mono/stereo control  
Vi(pil)  
pilot threshold voltage  
stereo on  
mono on  
8
24  
20  
2
30  
mV  
mV  
dB  
Vi(pil)  
switch hysteresis Vi on/Vi off  
External mono/stereo control; note 2  
V
17 0.765V21 control voltage channel separation see Fig.17  
α = 6 dB  
110  
40  
mV  
mV  
α = 16 dB  
1997 Feb 12  
14  
Philips Semiconductors  
Preliminary specification  
In Car Entertainment (ICE) car radio  
TEA6820T; TEA6822T  
SYMBOL  
PARAMETER  
CONDITIONS  
MIN.  
TYP. MAX. UNIT  
Muting functions (mute via I2C-bus)  
V44, V41  
DC offset voltage  
tune mute  
50  
+50  
mV  
radio mute (in combination  
with tune mute)  
400  
+400 mV  
αmute  
tune mute  
60  
80  
dB  
dB  
radio mute (in combination with  
tune mute)  
High-cut control; see Fig.18  
18 0.765V21 control voltage  
V
note 3  
tde-emph = 50 µs  
tde-emph = 80 µs  
0
mV  
mV  
µs  
300  
50  
tde-emph  
control range of de-emphasis  
80  
Voltage controlled oscillator; note 4  
fosc  
oscillator frequency range  
225  
40  
228  
50  
231  
kHz  
Noise blanker  
INTERFERENCE DETECTION FULLY INTERNAL FROM LEVEL DETECTOR  
tsup  
interference suppression time  
µs  
TRIGGER THRESHOLD CONTROL  
I51 charge  
charge current (into +4 V)  
discharge current (from +8.5 V)  
45  
µA  
µA  
I51 discharge  
900  
TRIGGER SENSITIVITY MEASUREMENT WITH PULSED MODULATION OF FM-IF2; see Figs 19 and 20  
V37-35(p)  
trigger sensitivity for test signal 1  
(peak value)  
V38 = 2.52 V; note 5  
0.8  
mV  
mV  
mV  
mV  
V
V38 = 2.52 V; note 6  
100  
5.0  
100  
trigger sensitivity for test signal 2  
(peak value)  
V38 = 2.52 V; note 6  
V38 = 2.52 V; note 6  
V51  
trigger threshold variation with  
frequency modulation of FM-IF2  
and fmod = 15 kHz (pin 51)  
V37-35 = 100 mV; f = 0 kHz  
V37-35 = 100 mV; f = 75 kHz  
6.4  
520  
V51  
mV  
Ioffset  
gate input offset current at pins 31  
and 32 during suppression pulse  
duration  
20  
50  
nA  
1997 Feb 12  
15  
Philips Semiconductors  
Preliminary specification  
In Car Entertainment (ICE) car radio  
TEA6820T; TEA6822T  
Notes to the stereo decoder characteristics  
1. The following equations give the values for the carrier and harmonic suppression at the output:  
V0 (signal) (at 1 kHz)  
α2=  
f
= (2 × 10 kHz) 19 kHz  
f = (3 × 13 kHz) 38 kHz  
-----------------------------------------------------------------  
s
-----------------------------------------------------------------  
s
V0 (spurious) (at 1 kHz)  
V0 (signal) (at 1 kHz)  
α3  
=
V0 (spurious) (at 1 kHz)  
V0 (signal) (at 1 kHz)  
α57 (ARI) =  
----------------------------------------------------------------------------------------------  
V0 (spurious) (at 1 kHz ± 23 Hz)  
V0 (signal) (at 1 kHz)  
α 67  
=
f s = (2 × 38 kHz) 67 kHz  
-----------------------------------------------------------------  
V0 (spurious) (at 9 kHz)  
V0 (signal) (at 1 kHz)  
α114  
=
f
= 110 kHz (3 × 38 kHz)  
-----------------------------------------------------------------  
s
V0 (spurious) (at 4 kHz)  
V0 (signal) (at 1 kHz)  
α190  
=
f
= 186 kHz (5 × 38 kHz)  
-----------------------------------------------------------------  
s
V0 (spurious) (at 4 kHz)  
2. The stereo decoder can be set to mono via the I2C-bus. Pilot presence indication via the I2C-bus.  
3. The nominal de-emphasis value can be changed to 75 µs with C31; C32 = 10 nF.  
4. The VCO is adjusted by means of a digital auxiliary PLL.  
5. Noise blanker does not trigger.  
6. Noise blanker triggers.  
1997 Feb 12  
16  
Philips Semiconductors  
Preliminary specification  
In Car Entertainment (ICE) car radio  
TEA6820T; TEA6822T  
CHARACTERISTICS FOR ANALOG-TO-DIGITAL CONVERTERS (ADCs) 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  
2
4
8
dB/step  
dB  
analog-to-digital conversion level range  
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  
2
4
8
dB/step  
dB  
analog-to-digital conversion level range  
43  
56  
69  
AM STOP  
Vstop  
variation of stop level as function of V43-4  
16  
dB/V  
ADC for multi-path information; note 3  
m
multi-path conversion  
step 0  
5
%
%
%
%
%
%
%
%
step 1  
step 2  
step 3  
step 4  
step 5  
step 6  
step 7  
15  
22  
28  
34  
40  
46  
52  
60  
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 Feb 12  
17  
Philips Semiconductors  
Preliminary specification  
In Car Entertainment (ICE) car radio  
TEA6820T; TEA6822T  
1 : 1  
+8.5 V  
13  
14  
19  
20  
LOW NOISE  
SPECTRUM  
AMPLIFIER  
ANALYZER  
AVD 704201  
HP8568A  
GENERATOR  
3.5  
3.5  
TEA6820T  
TEA6822T  
330  
2
R&S SMPC  
R
= 50 Ω  
g
(S/N = 103 dB)  
f
= 10.7 MHz  
f
= 72.2 MHz  
IF2  
IF1  
MHA206  
Fig.4 Test circuit FM mixer.  
10 nF  
27  
10 nF  
29  
PASSIVE  
ATTENUATOR  
–6 dB  
GENERATOR  
R&S SMPC  
TEA6820T  
TEA6822T  
OSCILLOSCOPE  
PM3295A  
330  
R
= 50 Ω  
= 330 Ω  
R
= 50 Ω  
IN  
g
24  
10 nF  
4
R
OUT  
MHA207  
Fig.5 Test circuit IF-amplifier.  
10 nF  
10 nF  
10 nF  
37  
35  
1
2
GENERATOR  
R&S SMPC  
TEA6820T  
TEA6822T  
OSCILLOSCOPE  
PM3295A  
50 Ω  
R
= 50 Ω  
g
MHA208  
100 nF  
Fig.6 Test circuit limiter gain.  
18  
1997 Feb 12  
Philips Semiconductors  
Preliminary specification  
In Car Entertainment (ICE) car radio  
TEA6820T; TEA6822T  
MHA247  
20  
V
47-4  
(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.7 Signal and noise of muted MPX voltage.  
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.8 Signal and noise of unmuted MPX voltage.  
19  
1997 Feb 12  
Philips Semiconductors  
Preliminary specification  
In Car Entertainment (ICE) car radio  
TEA6820T; TEA6822T  
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.9 Unweighted voltage level (typical curve).  
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.10 Adjustment range of unweighted voltage level.  
20  
1997 Feb 12  
Philips Semiconductors  
Preliminary specification  
In Car Entertainment (ICE) car radio  
TEA6820T; TEA6822T  
MHA251  
20  
V
47-4  
(dB)  
(1)  
0
(4)  
(3)  
(5)  
–20  
–40  
–60  
–80  
(4)  
–1  
(2)  
(3)  
(5)  
–3  
–2  
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  
(3) Level adjustment set to α  
(4) Level adjustment set to α  
(5) Level adjustment set to α  
at 0.6 mV.  
at 0.4 mV.  
at 1 mV.  
3 dB  
3 dB  
3 dB  
Fig.11 Muting dependence of unweighted voltage level (typical curve).  
1997 Feb 12  
21  
Philips Semiconductors  
Preliminary specification  
In Car Entertainment (ICE) car radio  
TEA6820T; TEA6822T  
MHA252  
10  
V
49-4  
(V)  
8
6
4
2
0
–3  
–2  
–1  
2
3
10  
10  
10  
1
10  
10  
10  
V
(mV)  
37-35  
Fig.12 Typical mute voltage as function of FM-IF2 voltage.  
MHA213  
10  
V
49-4  
(V)  
8
6
4
2
0
–3  
–2  
–1  
2
3
10  
10  
10  
1
10  
10  
10  
V
(mV)  
37-35  
Fig.13 Adjustment range mute voltage.  
22  
1997 Feb 12  
Philips Semiconductors  
Preliminary specification  
In Car Entertainment (ICE) car radio  
TEA6820T; TEA6822T  
+8.5 V  
10 nF  
270 Ω  
27  
24  
22  
23  
GENERATOR  
R&S SMPC  
LOW NOISE  
SPECTRUM  
ANALYZER  
HP8568A  
TEA6820T  
TEA6822T  
7
7
AMPLIFIER  
AVD 704201  
(S/N = 103 dB)  
20  
2.2  
kΩ  
R
= 50 Ω  
= 10.7 MHz  
g
f
IF1  
22  
nF  
10 nF  
MHA209  
Fig.14 Test circuit AM mixer.  
MHA214  
20  
V
48-4  
8
(dB)  
(1)  
THD  
(%)  
0
6
4
2
0
(4)  
–20  
–40  
–60  
–80  
(2)  
(3)  
–3  
–2  
–1  
2
3
10  
10  
10  
1
10  
10  
10  
V
(mV)  
33-34  
(1) AF: f = 450 kHz; m = 30%; f  
mod  
= 400 Hz.  
(2) Noise: unweighted B = 250 Hz to 15 kHz.  
(3) THD m = 80%.  
(4) AM level voltage.  
Fig.15 Signal, noise and distortion of AM AF output voltage and AM voltage level (typical curve).  
1997 Feb 12  
23  
Philips Semiconductors  
Preliminary specification  
In Car Entertainment (ICE) car radio  
TEA6820T; TEA6822T  
MHA215  
4
V
I,MPX(p-p)  
(V)  
3
2
1
0
0
100  
200  
300  
R
(k)  
IN(pin20)  
Fig.16 Adaption of MPX input to FM-demodulator output level by variation of the input resistor.  
MHA216  
40  
α
cs  
(dB)  
30  
20  
10  
0
–300  
–200  
–100  
0
control voltage V – 0.765V (mV)  
17 21  
Fig.17 Channel separation as function of control voltage.  
24  
1997 Feb 12  
Philips Semiconductors  
Preliminary specification  
In Car Entertainment (ICE) car radio  
TEA6820T; TEA6822T  
MHA217  
0
(dB)  
–1  
–2  
–3  
–4  
–300  
–200  
–100  
0
control voltage V – 0.765V (mV)  
18  
21  
Fig.18 High-cut with fmod = 10 kHz as function of control voltage.  
1997 Feb 12  
25  
Philips Semiconductors  
Preliminary specification  
In Car Entertainment (ICE) car radio  
TEA6820T; TEA6822T  
t
= 1 ms  
MHA210  
V
rep  
37-35  
t = 5 µs  
t = t = 0.5 µs  
r
f
A
0.6 A  
f
= 10.7 MHz  
IF  
t
Fig.19 Test signal 1 for interference detection from level detector.  
MHA211  
t
= 1 ms  
V
rep  
37-35  
t = 5 µs  
t = t = 0.5 µs  
r
f
A
0.2 A  
f
= 10.7 MHz  
IF  
t
Fig.20 Test signal 2 for interference detection from level detector.  
1997 Feb 12  
26  
Philips Semiconductors  
Preliminary specification  
In Car Entertainment (ICE) car radio  
TEA6820T; TEA6822T  
I2C-BUS AND I2C-BUS CONTROLLED FUNCTIONS  
I2C-bus specification  
Table 1 Structure of the I2C-bus  
DESCRIPTION  
SPECIFICATION  
1100001X  
The standard I2C-bus specification is expanded by the  
following definitions.  
Bus address of the  
TEA6820T and the  
TEA6822T  
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 respectively TEA6811T).  
Subaddress  
not used  
Hardware (pin)  
programmable  
address bits  
not available  
Subaddresses are not used.  
Default settings by  
power-on reset  
data byte 1 bits 4 to 7 are set to  
logic ‘0’; all other bits are random  
DATA TRANSFER FOR THE TEA6820T AND THE TEA6822T  
Data sequence:  
Address  
Byte 1  
Table 2 Data to be received by the IC for data byte 1  
BIT  
DESCRIPTION  
switch for mono  
RESULT  
bit 0 = 1  
bit 0 = 0  
0
Byte 2.  
switch for stereo  
The data transfer maybe in this order only. The transfer  
direction of the data bytes is defined by the LSB of the  
address.  
1
2
3
4
LSB reference frequency for  
synthesizer  
reference frequency for  
synthesizer  
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.  
MSB reference frequency for  
synthesizer  
When writing to the transceiver by using the STOP  
condition before completion of the whole transfer:  
tuning mute off  
bit 4 = 1  
bit 4 = 0  
bit 5 = 1  
bit 5 = 0  
bit 6 = 1  
bit 6 = 0  
bit 7 = 1  
bit 7 = 0  
tuning mute on  
The remaining bytes will contain the old information  
5
6
7
SDS/SDR hold off  
SDS/SDR hold on  
radio mute off  
If the transfer of a byte was not completed, this byte is  
lost and the previous information is available.  
radio mute on  
DATA TRANSFER TO AN OUTPUT OF THE FRONT-END IC  
I2C-bus to front-end ENABLED  
I2C-bus to front-end DISABLED  
A data bit in the transceiver of the TEA6820T or TEA6822T  
enables or disables a direct transfer of all transmissions to  
an interface stage for the front-end IC.  
Table 3 Reference frequency setting in data byte 1;  
For a transmission to the front-end IC the address and the  
data format of the front-end IC has to be used.  
see Table 1  
BIT 3  
BIT 2  
BIT 1  
FREQUENCY SETTING  
3 kHz  
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.  
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
5 kHz  
10 kHz  
15 kHz  
25 kHz  
DATA TRANSFER TO THE IF IC  
50 kHz  
Data transfer to the IF IC (TEA6820T or TEA6822T) is  
independent of the state of interface stage for the front-end  
IC.  
not defined  
not defined  
1997 Feb 12  
27  
Philips Semiconductors  
Preliminary specification  
In Car Entertainment (ICE) car radio  
TEA6820T; TEA6822T  
Table 4 Data to be received by the IC for data byte 2  
Table 6 Data to be transmitted by the IC for data byte 2  
BIT  
DESCRIPTION  
AM/FM; AM mode  
RESULT  
BIT  
DESCRIPTION  
LSB of the IF-counter  
0
bit 0 = 0  
bit 0 = 1  
bit 1 = 0  
bit 1 = 1  
bit 2 = 0  
bit 2 = 1  
bit 3 = 0  
bit 3 = 1  
bit 4 = 0  
0
1
2
3
4
5
6
7
AM/FM; FM mode  
IF-counter  
1
2
3
4
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  
SDR off  
IF-counter  
IF-counter  
IF-counter  
IF-counter  
IF-counter  
SDR on  
MSB of the IF-counter  
IF-prescaler division rate;  
divide by 200  
REFERENCED FREQUENCY GENERATION  
IF-prescaler division rate;  
divide by 25  
bit 4 = 1  
Table 7 Division ratios  
REFERENCE  
FREQUENCY  
(kHz)(1)  
5
6
sensitivity unchanged  
bit 5 = 0  
bit 5 = 1  
DIVISION RATIO  
multi-path sensitivity switch; less  
sensitivity by an offset of m = 10%  
20500  
12300  
6150  
4100  
2460  
1230  
3
temperature compensation of  
unweighted voltage level;  
temperature coefficient as specified  
in Chapter “Characteristics”  
5
10  
15  
25  
50  
temperature compensation off  
temperature compensation on  
not used  
bit 6 = 0  
bit 6 = 1  
7
Note  
1. All specified frequencies are valid for a crystal  
oscillator frequency of 61.5 MHz.  
Table 5 Data to be transmitted by the IC for data byte 1;  
note 1  
BIT  
DESCRIPTION  
bit 1 level information  
0
1
2
3
4
5
6
7
bit 2 level information  
MSB (bit 3) level information  
LSB multi-path information  
multi-path information  
MSB multi-path information  
stereo pilot presence; bit 6 = 1  
LSB (bit 0) level information  
Note  
1. The analog-to-digital conversion for multi-path and  
level will be done during a transmission of any address  
to the I2C-bus.  
1997 Feb 12  
28  
Philips Semiconductors  
Preliminary specification  
In Car Entertainment (ICE) car radio  
TEA6820T; TEA6822T  
Table 8 Output signal of reference frequency divider  
SYMBOL  
V10-11(p-p)  
V10-4(p-p)  
V11-4(p-p)  
PARAMETER  
MIN.  
0.3  
TYP.  
0.4  
MAX.  
0.5  
UNIT  
differential output voltage (peak-to-peak value)  
single-ended output voltage (peak-to-peak value)  
V
V
;
0.15  
0.2  
0.3  
C10-4; C11-4  
output capacitance  
output resistance  
4
pF  
R10-52; R11-52  
800  
1000  
1200  
IF COUNTER  
Table 9 IF counter sensitivity  
SYMBOL PARAMETER  
V33-34  
V37-35  
CONDITIONS  
MIN.  
UNIT  
IF counter sensitivity  
IF counter sensitivity  
AM mode; m = 0  
FM mode  
200  
200  
µV  
µV  
AM counting windows are 4 or 40 ms. 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.  
B0 B1 B2 B3 B4 B5 B6 B7  
FM IF2  
FM IF-PRESCALER  
8-BIT BINARY COUNTER  
÷ 25 /÷ 200  
prescaler setting  
MHA205  
4 ms/40 ms  
counter window  
AM IF2  
Fig.21 IF counter structure.  
1997 Feb 12  
29  
Philips Semiconductors  
Preliminary specification  
In Car Entertainment (ICE) car radio  
TEA6820T; TEA6822T  
IF counter read out  
IF counter read out as a function of FM or AM position, counter window and prescaler setting  
RANGE (kHz)  
MIN. MAX.  
PRESCALER  
RATIO  
WINDOW  
(ms)  
fIF  
(kHz)  
RESOLUTION  
(Hz/count)  
FM/AM  
READ OUT  
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  
17050  
FM  
10065  
11335  
FM  
FM(1)  
9906.25  
10620.63  
418.25  
446.83  
11493.75  
10779.38  
481.75  
40  
4
AM  
AM(1)  
250  
1
40  
450  
25  
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 count, while reading this value. If the transmission to the front-end IC is disabled after  
the synthesizer loop of the TEA6810T/TEA6811T front-end IC has locked for a new frequency, the IF-count 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 Feb 12  
30  
Philips Semiconductors  
Preliminary specification  
In Car Entertainment (ICE) car radio  
TEA6820T; TEA6822T  
INTERNAL CIRCUITRY  
Table 10 Equivalent pin circuits and pin voltages  
DC VOLTAGE  
(V)  
PIN  
SYMBOL  
EQUIVALENT CIRCUIT  
AM  
FM  
1
2
QDET1  
4.0  
4.0  
4.0  
4.0  
QDET2  
1
39  
2
MHA164  
3
TSWITCH  
open  
0.4 to 0.6  
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 Feb 12  
31  
Philips Semiconductors  
Preliminary specification  
In Car Entertainment (ICE) car radio  
TEA6820T; TEA6822T  
DC VOLTAGE  
(V)  
PIN  
SYMBOL  
EQUIVALENT CIRCUIT  
AM  
FM  
8
9
XTAL1  
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 Feb 12  
32  
Philips Semiconductors  
Preliminary specification  
In Car Entertainment (ICE) car radio  
TEA6820T; TEA6822T  
DC VOLTAGE  
(V)  
PIN  
SYMBOL  
EQUIVALENT CIRCUIT  
AM  
FM  
15  
TSDR  
0.7 to 5.5  
0.7 to 5.5  
15  
MHA172  
16  
TSDS  
0.7 to 5.5  
0.7 to 5.5  
16  
MHA173  
17  
18  
VSDS  
3.0 to 5.5  
3.0 to 5.5  
17  
MHA174  
VSDR  
3.0 to 5.5  
3.0 to 5.5  
18  
MHA175  
19  
20  
FMIF2OUT1  
FMIF2OUT2  
8.5  
8.5  
8.5  
8.5  
19  
20  
14  
13  
MHA171  
1997 Feb 12  
33  
Philips Semiconductors  
Preliminary specification  
In Car Entertainment (ICE) car radio  
TEA6820T; TEA6822T  
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  
PHASEDET  
2.8 to 7.0  
2.8 to 7.2  
25  
MHA179  
PILDET  
0.4  
0.4 to 7.0  
26  
MHA180  
1997 Feb 12  
34  
Philips Semiconductors  
Preliminary specification  
In Car Entertainment (ICE) car radio  
TEA6820T; TEA6822T  
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  
AFGND  
3.6  
2.3  
3.6  
2.3  
30  
MHA183  
DEEMPHR  
31  
MHA184  
32  
DEEMPHL  
2.3  
2.3  
32  
MHA185  
1997 Feb 12  
35  
Philips Semiconductors  
Preliminary specification  
In Car Entertainment (ICE) car radio  
TEA6820T; TEA6822T  
DC VOLTAGE  
(V)  
PIN  
SYMBOL  
EQUIVALENT CIRCUIT  
AM  
FM  
33  
34  
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  
38  
LEVELADJ  
2.6  
2.6  
38  
MHA189  
1997 Feb 12  
36  
Philips Semiconductors  
Preliminary specification  
In Car Entertainment (ICE) car radio  
TEA6820T; TEA6822T  
DC VOLTAGE  
(V)  
PIN  
SYMBOL  
EQUIVALENT CIRCUIT  
AM  
FM  
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  
OUTLEFT  
FMSTOP  
3.6  
3.6  
41  
MHA191  
0 to 5.2  
0 to 5.2  
42  
MHA192  
43  
44  
RDS/AMSTOP  
0 to 5.2  
3.0  
3.6  
43  
MHA193  
OUTRIGHT  
3.6  
44  
MHA194  
1997 Feb 12  
37  
Philips Semiconductors  
Preliminary specification  
In Car Entertainment (ICE) car radio  
TEA6820T; TEA6822T  
DC VOLTAGE  
(V)  
PIN  
SYMBOL  
EQUIVALENT CIRCUIT  
AM  
FM  
45  
MPXIN  
2.8  
2.8  
45  
MHA195  
46  
47  
i.c.  
MPXOUT  
0
3.0  
47  
MHA197  
48  
AMAFOUT  
3.7  
4.8  
48  
MHA198  
49  
50  
Vmute/AML  
1.0 to 5.5  
1.0 to 5.5  
1.0 to 7.0  
49  
MHA199  
LEVELUNWEIG 1.0 to 7.0  
50  
MHA200  
51  
52  
IACCONTR  
0
6.0  
5.0  
51  
MHA201  
VDDD  
5.0  
1997 Feb 12  
38  
Philips Semiconductors  
Preliminary specification  
In Car Entertainment (ICE) car radio  
TEA6820T; TEA6822T  
DC VOLTAGE  
(V)  
PIN  
SYMBOL  
EQUIVALENT CIRCUIT  
AM  
FM  
53  
SDA  
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 Feb 12  
39  
Philips Semiconductors  
Preliminary specification  
In Car Entertainment (ICE) car radio  
TEA6820T; TEA6822T  
APPLICATION INFORMATION  
1 kΩ  
VCC1  
7PSAG-  
1946D = S  
Vref  
SFP450  
1.5 nF  
220 nF  
47 Ω  
VCC  
+8.5 V  
LEVELADJ  
68 Ω  
330 Ω  
FMSTOP  
2.2 MΩ  
220  
µH  
10  
nF  
100 nF  
2.7  
kΩ  
1 mH  
33 µH  
10 nF  
100 kΩ  
R40  
68 µH  
100 kΩ  
R39  
10 pF  
SFE10.7  
TR5  
6.8 µH  
100 nF  
100 Ω  
3.3 µH  
82 kΩ  
SFE10.7  
470 Ω  
270 pF  
270 pF  
18  
47 µF  
100  
nF  
34 42  
100 nF  
220 Ω  
8.2 pF  
BF840  
27 Ω  
19  
33  
36  
38  
22 23  
22  
26  
390 Ω  
37  
AM/FM  
21  
BAND-  
GAP  
A
B
100 nF  
BF861A  
AM/FM  
SWITCH  
FM-LIMITER  
AM-AMPLIFIER  
330 Ω  
330 pF  
TR4  
35  
27  
LEVEL  
DETECTOR  
AM -  
RF  
100 nF  
16  
15  
26  
AM  
AM/FM  
BAV  
99  
AM  
SFE  
10.7  
22  
22 pF  
25  
27  
C
D
24  
100 pF  
:2/:6  
330  
pF  
47 mH  
388BN-1211Z  
nF  
1 µF  
P392BE-  
2049AJ = S  
28  
29  
LEVEL  
IF-  
LIMITER  
:N2  
AGC  
100  
pF  
:N5  
470 Ω  
28  
29  
AMPLIFIER  
33 µF  
AMPLIFIER  
100 nF  
TEA6810T  
TEA6811T  
220 kΩ  
22 Ω  
E
F
330 nH  
5.6 pF  
33  
19  
20  
1 µF  
6.8  
pF  
2×ZS369SCS-  
20 kHz  
10 pF  
AGC  
FM  
L1  
TR2  
2144AJ  
TR3  
BB804  
11  
12  
13  
FM  
1 nF  
30  
31  
AM/FM  
56  
pF  
56  
pF  
BUFFER  
E543SNAS  
-04011  
14  
10 pF  
47 kΩ  
10 µF  
1 nF  
22 Ω  
22 nF  
10 nF  
BUFFER  
PIN  
DIODE  
DRIVE  
Philips 9922 521 00098  
or Daiwa AT - 49  
32  
34  
22 Ω  
ADC  
MULTI-  
PATH  
8
9
ADC  
LEVEL  
PROGRAMABLE  
DIVIDER  
OSCILLATOR  
61.5 MHz  
ISV  
172  
1 µF  
1
6
BUFFER  
38  
47 kΩ  
10  
100 nF  
REFERENCE  
FREQUENCY  
PHASE  
DETECTOR  
IF-  
7
COUNTER  
VCC  
+8.5 V  
11  
6
100 µF  
2
4
E543SNAS  
1.8 pF  
-02010  
SDA  
SCL  
BUS  
37  
AM/FM  
2
I
C-BUS  
1.8  
pF  
G
H
2.7 pF  
5
CONTROL  
OSCILLATOR  
L7  
35  
36  
7
10 k10 kΩ  
9
8
BB135  
2.2 kΩ  
47 pF  
4 to 10 pF  
AM/FM  
100  
nF  
LOCK  
DETECTOR  
39 CHARGE  
PUMP  
40  
TEA6820T  
TEA6822T  
10 kΩ  
100 nF  
AM/FM  
3.6 kΩ  
13  
14  
100 nF  
54  
53  
55  
40  
10 17 20  
3
3.3 nF  
12 nF  
330  
330  
10 kΩ  
10 kΩ  
VCC  
+8.5 V  
220 nF  
47 µF  
3.3  
MHA254  
VCCD  
+5 V  
VCCAN  
+5 V  
IN-LOCK  
µH  
SCL  
SDA  
+8.5 V  
Time constant control: slow or fast attack and decay time constants for soft mute, mono/stereo and high-cut control can be chosen by connecting  
pin 3 to GND or pin 21.  
Fig.22 ICE application diagram (continued in Fig.23).  
1997 Feb 12  
40  
Philips Semiconductors  
Preliminary specification  
In Car Entertainment (ICE) car radio  
TEA6820T; TEA6822T  
Vref  
33 kΩ  
RDS  
TOKO  
P392BC-1977Z  
10 nF  
220 kΩ  
AMSTOP  
3.3 nF  
220 nF  
27 kΩ  
22 nF  
68 pF  
L13  
62 pF  
100 kΩ  
R51  
220 nF  
47  
82 kΩ  
68 µF  
33 kΩ  
100 kΩ  
R41  
4.3 kΩ  
i.c.  
46  
1
43  
48  
25  
2
39  
45  
LOW  
PASS  
FILTER  
A
B
PHASE  
DETECTOR  
MPX  
BUFFER  
MUTE  
SOFT  
VCO  
AFC  
DIGITAL  
PHASE  
DETECTOR  
AM  
DELOG  
AMPLIFIER  
LOGIC  
BLOCK  
C
D
820 kΩ  
38 kHz  
19 kHz  
PASS  
HIGH  
60 kHz  
fref  
PILOT  
CANCELLER  
PILOT  
DETECTOR  
TEA6820T  
TEA6822T  
26  
100 nF  
6.8 nF  
31  
E
F
radio  
mute  
AVERAGE  
DETECTOR  
-
MPX-  
44  
30  
+
OUTRIGHT  
470 nF  
Vint1  
DECODER  
AND  
PEAK  
DETECTOR  
tuning  
mute  
+
-
41  
MATRIX  
OUTLEFT  
AVERAGE  
DETECTOR  
radio  
mute  
mono  
6.8 nF  
32  
HIGH  
PASS  
FILTER  
PEAK  
DETECTOR  
PULSE  
FORMER  
V
CC  
+8.5 V  
22 µH  
47 µF  
+8.5 V  
56  
4
100 nF  
Vint1  
Vint2  
INTERFERENCE  
DETECTOR  
CURRENT  
SWITCH  
G
H
SUPPLY  
AM  
470 nF  
-
+
12  
5
120 kΩ  
TEMPERATURE  
COMPENSATION  
NOISE  
DETECTOR  
V
+5 V  
Vint2  
CCAN  
3
17  
18  
51  
21 52  
50  
16  
49  
15  
100 nF  
33 µF  
47 µF  
12 kΩ  
3.3 MΩ  
1 MΩ  
2.2 MΩ  
1.2 MΩ  
10 Ω  
220 nF 100 nF  
100 nF  
100 nF  
33 kΩ  
MHA255  
100 nF  
level  
Vref  
V
CCDIG  
+5 V  
Fig.23 ICE application diagram (continued from Fig.22).  
41  
1997 Feb 12  
Philips Semiconductors  
Preliminary specification  
In Car Entertainment (ICE) car radio  
TEA6820T; TEA6822T  
HM2A56  
d b o o k , f u l l p a g e w i d t  
1997 Feb 12  
42  
Philips Semiconductors  
Preliminary specification  
In Car Entertainment (ICE) car radio  
TEA6820T; TEA6822T  
PACKAGE OUTLINES  
VSO56: plastic very small outline package; 56 leads  
SOT190-1  
D
E
A
X
c
y
H
v
M
A
E
Z
56  
29  
Q
p
A
2
A
(A )  
3
A
1
pin 1 index  
θ
L
L
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  
0.03  
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  
0.089  
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  
92-11-17  
96-04-02  
SOT190-1  
1997 Feb 12  
43  
Philips Semiconductors  
Preliminary specification  
In Car Entertainment (ICE) car radio  
TEA6820T; TEA6822T  
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  
0.03  
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  
0.089  
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  
95-04-26  
96-04-02  
SOT190-2  
1997 Feb 12  
44  
Philips Semiconductors  
Preliminary specification  
In Car Entertainment (ICE) car radio  
TEA6820T; TEA6822T  
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 Feb 12  
45  
Philips Semiconductors  
Preliminary specification  
In Car Entertainment (ICE) car radio  
TEA6820T; TEA6822T  
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 Feb 12  
46  
Philips Semiconductors  
Preliminary specification  
In Car Entertainment (ICE) car radio  
TEA6820T; TEA6822T  
NOTES  
1997 Feb 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  
Australia: 34 Waterloo Road, NORTH RYDE, NSW 2113,  
Tel. +61 2 9805 4455, Fax. +61 2 9805 4466  
New Zealand: 2 Wagener Place, C.P.O. Box 1041, AUCKLAND,  
Tel. +64 9 849 4160, Fax. +64 9 849 7811  
Austria: Computerstr. 6, A-1101 WIEN, P.O. Box 213,  
Tel. +43 1 60 101, Fax. +43 1 60 101 1210  
Norway: Box 1, Manglerud 0612, OSLO,  
Tel. +47 22 74 8000, Fax. +47 22 74 8341  
Belarus: Hotel Minsk Business Center, Bld. 3, r. 1211, Volodarski Str. 6,  
220050 MINSK, Tel. +375 172 200 733, Fax. +375 172 200 773  
Philippines: Philips Semiconductors Philippines Inc.,  
106 Valero St. Salcedo Village, P.O. Box 2108 MCC, MAKATI,  
Metro MANILA, Tel. +63 2 816 6380, Fax. +63 2 817 3474  
Belgium: see The Netherlands  
Brazil: see South America  
Poland: Ul. Lukiska 10, PL 04-123 WARSZAWA,  
Tel. +48 22 612 2831, Fax. +48 22 612 2327  
Bulgaria: Philips Bulgaria Ltd., Energoproject, 15th floor,  
51 James Bourchier Blvd., 1407 SOFIA,  
Tel. +359 2 689 211, Fax. +359 2 689 102  
Portugal: see Spain  
Romania: see Italy  
Canada: PHILIPS SEMICONDUCTORS/COMPONENTS,  
Tel. +1 800 234 7381  
Russia: Philips Russia, Ul. Usatcheva 35A, 119048 MOSCOW,  
Tel. +7 095 755 6918, Fax. +7 095 755 6919  
China/Hong Kong: 501 Hong Kong Industrial Technology Centre,  
72 Tat Chee Avenue, Kowloon Tong, HONG KONG,  
Tel. +852 2319 7888, Fax. +852 2319 7700  
Singapore: Lorong 1, Toa Payoh, SINGAPORE 1231,  
Tel. +65 350 2538, Fax. +65 251 6500  
Colombia: see South America  
Czech Republic: see Austria  
Slovakia: see Austria  
Slovenia: see Italy  
Denmark: Prags Boulevard 80, PB 1919, DK-2300 COPENHAGEN S,  
Tel. +45 32 88 2636, Fax. +45 31 57 1949  
South Africa: S.A. PHILIPS Pty Ltd., 195-215 Main Road Martindale,  
2092 JOHANNESBURG, P.O. Box 7430 Johannesburg 2000,  
Tel. +27 11 470 5911, Fax. +27 11 470 5494  
Finland: Sinikalliontie 3, FIN-02630 ESPOO,  
Tel. +358 9 615800, Fax. +358 9 61580/xxx  
South America: Rua do Rocio 220, 5th floor, Suite 51,  
04552-903 São Paulo, SÃO PAULO - SP, Brazil,  
Tel. +55 11 821 2333, Fax. +55 11 829 1849  
France: 4 Rue du Port-aux-Vins, BP317, 92156 SURESNES Cedex,  
Tel. +33 1 40 99 6161, Fax. +33 1 40 99 6427  
Spain: Balmes 22, 08007 BARCELONA,  
Tel. +34 3 301 6312, Fax. +34 3 301 4107  
Germany: Hammerbrookstraße 69, D-20097 HAMBURG,  
Tel. +49 40 23 53 60, Fax. +49 40 23 536 300  
Sweden: Kottbygatan 7, Akalla, S-16485 STOCKHOLM,  
Tel. +46 8 632 2000, Fax. +46 8 632 2745  
Greece: No. 15, 25th March Street, GR 17778 TAVROS/ATHENS,  
Tel. +30 1 4894 339/239, Fax. +30 1 4814 240  
Switzerland: Allmendstrasse 140, CH-8027 ZÜRICH,  
Tel. +41 1 488 2686, Fax. +41 1 481 7730  
Hungary: see Austria  
India: Philips INDIA Ltd, Shivsagar Estate, A Block, Dr. Annie Besant Rd.  
Worli, MUMBAI 400 018, Tel. +91 22 4938 541, Fax. +91 22 4938 722  
Taiwan: Philips Semiconductors, 6F, No. 96, Chien Kuo N. Rd., Sec. 1,  
TAIPEI, Taiwan Tel. +886 2 2134 2870, Fax. +886 2 2134 2874  
Indonesia: see Singapore  
Thailand: PHILIPS ELECTRONICS (THAILAND) Ltd.,  
209/2 Sanpavuth-Bangna Road Prakanong, BANGKOK 10260,  
Tel. +66 2 745 4090, Fax. +66 2 398 0793  
Ireland: Newstead, Clonskeagh, DUBLIN 14,  
Tel. +353 1 7640 000, Fax. +353 1 7640 200  
Israel: RAPAC Electronics, 7 Kehilat Saloniki St, TEL AVIV 61180,  
Tel. +972 3 645 0444, Fax. +972 3 649 1007  
Turkey: Talatpasa Cad. No. 5, 80640 GÜLTEPE/ISTANBUL,  
Tel. +90 212 279 2770, Fax. +90 212 282 6707  
Italy: PHILIPS SEMICONDUCTORS, Piazza IV Novembre 3,  
20124 MILANO, Tel. +39 2 6752 2531, Fax. +39 2 6752 2557  
Ukraine: PHILIPS UKRAINE, 4 Patrice Lumumba str., Building B, Floor 7,  
252042 KIEV, Tel. +380 44 264 2776, Fax. +380 44 268 0461  
Japan: Philips Bldg 13-37, Kohnan 2-chome, Minato-ku, TOKYO 108,  
Tel. +81 3 3740 5130, Fax. +81 3 3740 5077  
United Kingdom: Philips Semiconductors Ltd., 276 Bath Road, Hayes,  
MIDDLESEX UB3 5BX, Tel. +44 181 730 5000, Fax. +44 181 754 8421  
Korea: Philips House, 260-199 Itaewon-dong, Yongsan-ku, SEOUL,  
Tel. +82 2 709 1412, Fax. +82 2 709 1415  
United States: 811 East Arques Avenue, SUNNYVALE, CA 94088-3409,  
Tel. +1 800 234 7381  
Malaysia: No. 76 Jalan Universiti, 46200 PETALING JAYA, SELANGOR,  
Tel. +60 3 750 5214, Fax. +60 3 757 4880  
Uruguay: see South America  
Vietnam: see Singapore  
Mexico: 5900 Gateway East, Suite 200, EL PASO, TEXAS 79905,  
Tel. +9-5 800 234 7381  
Yugoslavia: PHILIPS, Trg N. Pasica 5/v, 11000 BEOGRAD,  
Tel. +381 11 625 344, Fax.+381 11 635 777  
Middle East: see Italy  
For all other countries apply to: Philips Semiconductors, Marketing & Sales Communications,  
Internet: http://www.semiconductors.philips.com  
Building BE-p, P.O. Box 218, 5600 MD EINDHOVEN, The Netherlands, Fax. +31 40 27 24825  
© Philips Electronics N.V. 1997  
SCA53  
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  
547027/1200/03/pp48  
Date of release: 1997 Feb 12  
Document order number: 9397 750 01395  

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