TEA6825T PHILIPS [NXP Semiconductors], TEA6825T Datasheet - Page 18

• Manufacturer Part Number: TEA6825T
• Description: In Car Entertainment ICE car radio
• Manufacturer: PHILIPS [NXP Semiconductors]

Philips Semiconductors
1998 Mar 24
handbook, full pagewidth
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In Car Entertainment (ICE) car radio
GENERATOR
R&S SMPC
R g = 50
GENERATOR
R&S SMPC
R g = 50
f IF1 = 72.2 MHz
GENERATOR
1 : 1
R&S SMPC
R g = 50
ATTENUATOR
R OUT = 330
R IN = 50
PASSIVE
13
14
–6 dB
Fig.5 Test circuit IF-amplifier.
Fig.6 Test circuit limiter gain.
TEA6823T
TEA6825T
10 nF
Fig.4 Test circuit FM mixer.
50
100 nF
37
35
10 nF
19
20
TEA6823T
TEA6825T
27
10 nF
24
18
f IF2 = 10.7 MHz
TEA6823T
TEA6825T
3.5
3.5
8.5 V
1
2
10 nF
10 nF
2
29
4
10 nF
OSCILLOSCOPE
330
PM3295A
330
TEA6823T; TEA6825T
(S/N = 103 dB)
LOW NOISE
AVD 704201
AMPLIFIER
OSCILLOSCOPE
MHA704
PM3295A
MHA703
Preliminary specification
SPECTRUM
ANALYZER
HP8568A
MHA702