Cirrus Logic CS3310 - Manual

1
Copyright © Cirrus Logic, Inc. 2005
(All Rights Reserved)
Cirrus Logic, Inc.
www.cirrus.com
CS3310
Stereo Digital Volume Control
Features
z Complete Digital Volume Control
— 2 Independent Channels
— Serial Control
— 0.5 dB Step Size
z Wide Adjustable Range
— -95.5 dB Attenuation
— +31.5 dB Gain
z Low Distortion & Noise
— 0.001% THD+N
— 116 dB Dynamic Range
z Noise Free Level Transitions
z Channel-to-Channel Crosstalk Better Than
110 dB
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 0° to 70° C 16-pin Plastic SOIC
CS3310-KSZ, Lead Free 0° to 70° C 16-pin Plastic SOIC
AINL
AGNDL
MUX
AINR
AGNDR
MUX
16
15
10
9
8
8
+
-
+
-
Control
Register
Serial to
Parallel
Register
16
8
8
AOUTL
14
MUTE
8
1
2
ZCEN
CS
3
SDATAI
7
SDATAO
6
SCLK
AOUTR
11
DGND
5
VD+
4
VA-
13
VA+
12
SEPTEMBER '05
DS82F1