![](/html/Philips/651222/page18.png)
Philips Semiconductors
In Car Entertainment (ICE) car radio
Preliminary specification
TEA6820T; TEA6822T
handbook, full pagewidth
GENERATOR
R&S SMPC
Rg = 50 Ω
1:1
fIF1 = 72.2 MHz
13
19
TEA6820T
TEA6822T
14
20
+8.5 V
3.5
2
3.5
fIF2 = 10.7 MHz
LOW NOISE
330
AMPLIFIER
Ω
AVD 704201
(S/N = 103 dB)
SPECTRUM
ANALYZER
HP8568A
MHA206
Fig.4 Test circuit FM mixer.
handbook, full pagewidth
GENERATOR
R&S SMPC
Rg = 50 Ω
PASSIVE
ATTENUATOR
–6 dB
RIN = 50 Ω
ROUT = 330 Ω
10 nF
10 nF
27 TEA6820T 29
TEA6822T
24
4
330 OSCILLOSCOPE
Ω
PM3295A
10 nF
MHA207
Fig.5 Test circuit IF-amplifier.
handbook, full pagewidth
1997 Feb 12
GENERATOR
R&S SMPC
Rg = 50 Ω
10 nF
50 Ω
37
1 10 nF
TEA6820T
TEA6822T
35
2
10 nF
100 nF
OSCILLOSCOPE
PM3295A
MHA208
Fig.6 Test circuit limiter gain.
18