CS4222_02 Datasheet, PDF (1/29 Pages) Cirrus Logic – 20-Bit Stereo Audio Codec with Volume Control

CS4222
20-Bit Stereo Audio Codec with Volume Control
Features
99 dB Dynamic Range
110 dB DAC Signal-to-Noise Ratio (EIAJ)
Analog Volume Control
- 0.5 dB Step Resolution
- 113.5 dB Attenuation
Soft Mute Capability
Differential Inputs/Outputs
On-chip Anti-aliasing and Output Smoothing
Filters
De-emphasis for 32, 44.1 and 48 kHz
Stand-Alone or Control Port Mode
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. A 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
CS4222-BS
-40° to +85° C 28-pin SSOP
CS4222-DS
-40° to +85° 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
DAC
Right
DAC
Left
ADC
Right
ADC
Volume
Control
Volume
Control
DGND
AGND
AOUTL+
AOUTL-
AOUTR+
AOUTR-
AINL-
AINL+
AINR-
AINR+
http://www.cirrus.com
© Copyright Cirrus Logic, Inc. 2002
(All Rights Reserved)
DEC ‘02
DS236F1
1