SA5752 Datasheet, PDF (6/13 Pages) NXP Semiconductors – Audio processor - companding, VOX and amplifier section

Philips Semiconductors
Audio processor – companding, VOX and amplifier section
Product specification
SA5752
Companding and Amplifier Section
SA5752
MICROPHONE
PREAMP
NOISE
CANCEL
GAIN
CONTROL
VOX
OUTPUT
VOX
COMPRESSOR
Filter and Control Section
SA5753
TX
BANDPASS
FILTER
SUMMING
AMP
TX
PRE–
EMPHASIS
TX
LOW
PASS
FILTER
AUDIO TO
TRANSMITTER
HEADPHONE
SPEAKER
EXPANDOR
RX
DE–
EMPHASIS
RX
BANDPASS
FILTER
DTMF
GENERATOR
AUDIO FROM
RECEIVER
DEMODULATOR
PA
PA
TDA7050T
ATTENUATOR
I²C
BUS
INTERFACE
VOX CONTROL
CLOCK
1.2MHz
FROM SYSTEM
CONTROLLER I ² C BUS
Figure 3. Typical Configuration of Audio Processor (APROC) System Chip Set
SR00661
1997 Nov 07
6