CS3310
Stereo Digital Volume Control
Features
Complete Digital Volume Control
— 2 Independent Channels
— Serial Control
— 0.5 dB Step Size
Description
The CS3310 is a complete stereo digital volume control
designed specifically for audio systems. It features a 16-
bit serial interface that controls two independent, low-
distortion audio channels.
The CS3310 includes an array of well-matched resistors
and a low noise active output stage that is capable of
driving a 600
Ω
load. A total adjustable range of 127 dB,
in 0.5 dB steps, is achieved through 95.5 dB of attenua-
tion and 31.5 dB of gain.
The simple 3-wire interface provides daisy-chaining of
multiple CS3310's for multi-channel audio systems.
The device operates from ±5 V supplies and has an in-
put/output voltage range of ±3.75 V.
ORDERING INFORMATION
CS3310-KS
CS3310-KSZ, Lead Free
0° to 70° C
0° to 70° C
16-pin Plastic SOIC
16-pin Plastic SOIC
Wide Adjustable Range
— -95.5 dB Attenuation
— +31.5 dB Gain
Low Distortion & Noise
— 0.001% THD+N
— 116 dB Dynamic Range
Noise Free Level Transitions
Channel-to-Channel Crosstalk Better Than
110 dB
AINL
16
+
-
MUX
8
8
14
8
1
2
16
3
Serial to
Parallel
Register
7
6
AOUTL
MUTE
ZCEN
CS
SDATAI
SDATAO
SCLK
AGNDL
AGNDR
15
10
8
Control
Register
8
MUX
9
12
VA+
13
VA-
-
+
4
VD+
5
DGND
11
AINR
AOUTR
Cirrus Logic, Inc.
www.cirrus.com
Copyright
©
Cirrus Logic, Inc. 2005
(All Rights Reserved)
SEPTEMBER '05
DS82F1
1
CIRRUS [ CIRRUS LOGIC ]
