CS4222 Datasheet, PDF (1/26 Pages) Cirrus Logic – 20-Bit Stereo Audio Codec with Volume Control

CS4222
20-Bit Stereo Audio Codec with Volume Control
Features
l 99 dB 20-bit A/D Converters
l 99 dB 20-bit D/A Converters
l 110 dB DAC Signal-to-Noise Ratio (EIAJ)
l Analog Volume Control
- 0.5 dB Step Resolution
- 113.5 dB Attenuation
l Soft Mute Capability
l Differential Inputs/Outputs
l On-chip Anti-aliasing and Output Smoothing
Filters
l De-emphasis for 32, 44.1 and 48 kHz
l Stand-Alone or Control Port Mode
l Single +5 V power supply
Description
The CS4222 is a highly integrated, high performance,
20-bit, audio codec providing stereo analog-to-digital
and stereo digital-to-analog converters using delta-sig-
ma conversion techniques. The device operates from a
single +5 V power supply, and features low power con-
sumption. Selectable de-emphasis filter for 32, 44.1, and
48 kHz sample rates is also included.
The CS4222 also includes an analog volume control ca-
pable of 113.5 dB attenuation in 0.5 dB resolution. The
analog volume control architecture preserves dynamic
range during attenuation. Volume control changes are
implemented using a "soft" ramping or zero crossing
technique.
Applications include reverb processors, musical instru-
ments, DAT, and multitrack recorders.
The CS4222 is packaged in a 28-pin plastic SSOP.
ORDERING INFORMATION
CS4222-KS -10° to +70° C 28-pin SSOP
CDB4222
Evaluation Board
I
SCL/CCLK SDA/CDIN AD0/CS SMUTE MCLK VD VA
RST
DEM1
DEM0
LRCK
SCLK
SDIN
SDOUT
Control Port
Left
Volume
DAC
Control
Right
Volume
DAC
Control
Left
ADC
Right
ADC
AOUTL+
AOUTL-
AOUTR+
AOUTR-
AINL-
AINL+
AINR-
AINR+
DGND
AGND
Preliminary Product Information
Cirrus Logic, Inc.
Crystal Semiconductor Products Division
P.O. Box 17847, Austin, Texas 78760
[phone] FAX: [phone]
http://www.crystal.com
This document contains information for a new product.
Cirrus Logic reserves the right to modify this product without notice.
Copyright © Cirrus Logic, Inc. 1997
(All Rights Reserved)
JAN ‘97
DS236PP3
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