AM79Q4457J ETC1 [List of Unclassifed Manufacturers], AM79Q4457J Datasheet - Page 4

• Manufacturer Part Number: AM79Q4457J
• Description: Quad Subscriber Line Audio Processing Circuit-Non-Programmable (QSLAC-NP) Devices
• Manufacturer: ETC1 [List of Unclassifed Manufacturers]

BLOCK DIAGRAM
4
Notes:
*1 = Am79Q5457 only.
*2 = Am79Q4457 only.
Analog
V
V
V
V
I2
I1
I2
I1
I2
I2
I1
I1
OUT1
OUT2
OUT3
OUT4
IN2
IN3
IN1
IN1
IN2
IN3
IN4
IN4
*2
*2
*2
*2
V
CCA
Signal Processing
Signal Processing
Channel 1 (CH 1)
Channel 2 (CH 2)
Signal Processing
Signal Processing
Channel 3 (CH 3)
Channel 4 (CH 4)
AGND
V
Am79Q4457/5457 Data Sheet
CCD
Reference
Quad SLAC-NP Device
Circuits
DGND
Clock
&
CO
*2
Control Interface
CS
*2
1–4
Interface
PCM
CI
*2
CCLK
*2
A/µ
TSCA
DXA
DRA
Highway
I
I
I
V
V
V
FSR
FSX
PCLK
MCLK
PDN
Single
REF1
REF2
REF3
PCM
REF1
REF2
REF3
20031A-001
*2
*2
1–4
1–4
*2
*2
1–4
*1