CS3318 Datasheet, PDF (13/44 Pages) Cirrus Logic – 8-Channel Analog Volume Control

4. DETAILED BLOCK DIAGRAM
IN1 1
VA+ 45
VA- 46
REFI1 ²
IN2 42
REFI2 41
IN3 39
VA+ 35
VA- 36
REFI3 40
IN4 32
REFI4 31
RESET ³
SDA/MOSI 6
SCL/CLLK 5
AD0/CS 7
MUTE 4
Zero Crossing Detector
0 ~ -96 dB ₊
RIN
_
ROUT
47 OUT1
0 ~ +22 dB
Zero Crossing Detector
0 ~ -96 dB ₊
RIN
_
ROUT
48 REFO1
44 OUT2
0 ~ +22 dB
Zero Crossing Detector
0 ~ -96 dB ₊
RIN
_
ROUT
43 REFO2
37 OUT3
0 ~ +22 dB
Zero Crossing Detector
0 ~ -96 dB ₊
RIN
_
ROUT
38 REFO3
34 OUT4
0 ~ +22 dB
33 REFO4
Ch. 4 Ch. 3 Ch. 2 Ch. 1
Control Control Control Control
Control Registers
Ch. 8 Ch. 7 Ch. 6 Ch. 5
Control Control Control Control
8 ENOut
10 VD
9 DGND
IN5 29
VA+ 25
VA- 26
REFI5 30
IN6 22
REFI6 ²¹
IN7 19
VA+ 15
VA- 16
REFI7 ²⁰
IN8 12
REFI8 11
Refer to the Analog Characteristics
table on page 8 for the specified
values of R_IN and R_OUT.
DS693F1
Zero Crossing Detector
0 ~ -96 dB ₊
RIN
_
ROUT
27 OUT5
0 ~ +22 dB
Zero Crossing Detector
0 ~ -96 dB ₊
RIN
_
ROUT
28 REFO5
24 OUT6
0 ~ +22 dB
Zero Crossing Detector
0 ~ -96 dB ₊
RIN
_
ROUT
23 REFO6
17 OUT7
0 ~ +22 dB
Zero Crossing Detector
0 ~ -96 dB ₊
RIN
_
ROUT
18 REFO7
14 OUT8
0 ~ +22 dB
13 REFO8
Figure 4. Detailed Block Diagram
CS3318
13