Preliminary Product Information

This document contains information for a new product.

Cirrus Logic reserves the right to modify this product without notice.

1

Copyright

(All Rights Reserved)

Products from

P.O. Box 17847, Austin, Texas 78760

(512) 445 7222 FAX: (512) 445 7581

http://www.crystal.com

CS3310

Stereo Digital Volume Control

Features

— 2 Independent Channels

— Serial Control

— 0.5 dB Step Size

— -95.5 dB Attenuation

— +31.5 dB Gain

— 0.001% THD+N

— 116 dB Dynamic Range

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 dis-

tortion 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-KP

0° to 70° C

16-pin Plastic DIP

CS3310-KS

0° to 70° C

16-pin Plastic SOIC

I

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

FEB ‘99

DS82PP3