AM79Q4457J ETC1 [List of Unclassifed Manufacturers], AM79Q4457J Datasheet - Page 26

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

26
*I2
*Am79Q4457 device only
I1
V
OUT
IN
IN
CO
CS
CCLK
CI
CS
CS
CS
1
2
4
3
BNS1
Am79Q4457
V
I
REF1
REF1
Figure 7. Am79Q4457 QSLAC-NP Device Serial Control Interface
Select
Select
REF
DAC
REF
ADC
*I
*V
REF2
REF2
*I
*V
REF3
REF3
PDN
PDN
PDN
PDN
Figure 8. QSLAC-NP Device Block Diagram
RGS1*
RGS2*
CO
TGS2*
CO
TGS1*
CO
CS
Qh
Qh
Qh
CS
CCLK
Qh
CO
CCLK
CS
CCLK
CS
CCLK
1
2
3
4
Interpolator
Decimator
3
4
1
2
RSVD
RSVD
RSVD
RSVD
Am79Q4457/5457 Data Sheet
Qg
Qg
Qg
Qg
RSVD
RSVD
RSVD
RSVD
Qf
Qf
Qf
Qf
TGS2
TGS2
TGS2
TGS2
Shift Register and
Shift Register and
Qe
Qe
Qe
Qe
Shift Register and
Latch Channel 3
Latch Channel 1
Latch Channel 4
Shift Register and
Latch Channel 2
1
2
3
4
RGS2
RGS2
RGS2
RGS2
Qd
Qd
Qd
Qd
3
4
2
1
TGS1
TGS1
TGS1
TGS1
Qc
Qc
Qc
Qc
& HPF
LPF
LPF
1
2
3
4
RGS1
RGS1
RGS1
RGS1
Qb
Qb
Qb
Qb
Compressor
1
2
3
4
Expander
BNS1
BNS1
BNS1
BNS1
Qa
Qa
Qa
Qa
CI
CI
CI
CI
1
2
3
4
A/µ
Interface
Interface
PCM
PCM
20031A–008
20031A-009
DRA
DXA