TEA5594 Просмотр технического описания (PDF) - Philips Electronics
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TEA5594 Datasheet PDF : 17 Pages
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FM
oscillator
26
FM
OSCILLATOR
GND
(oscillator buffer)
19
AM RF AM RF
input decoupled
AM
AM
mixer output oscillator
22 23
AM
RF AMPLIFIER
16
25
AM MIXER
AM AGC
AM IF
input
15
14
AM
IF AMPLIFIER
BUFFER
GND
32
(FM front-end)
BUFFER
FM RF
output
FM RF
input
FM RF
decoupled
28
30
FM
31 RF AMPLIFIER
FM
MIXER
BUFFER
BUFFER
AM
AGC
AM
DETECTOR
TEA5594
AM
OSCILLATOR
OSCILLATOR
LEVEL
CONTROLLER
FM
LEVEL
DETECTOR
AM
LEVEL
DETECTOR
AF
SOFT MUTE
13
AM / FM
level indicator
output
1
soft mute
FM RF 29
AGC
FM
AGC
FM IF1 4
FM
input
IF AMPLIFIER
3
5
17
FM IF FM IF1 FM
2.3 V output oscillator
output
FM
IF LIMITER
FM
front-end
FM RF STABILIZER
FM
AM demodulator
2
18
27 9
10 24 8
67
FM
AM
mixer oscillator
output output
FM RF VP FM IF AM FM
1.6 V
AM GND 1.6 V 2.3 V
FM IF FM IF
2.3 V input
FM
DEMODULATOR
IF
BUFFER
11
FM
demodulator
12
AF output
AM / FM
20
21
IF
counter
output
IF
counter
enable
input
MLA283
Fig.1 Block diagram.
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