CS4220
CS4221
24-Bit Stereo Audio Codec with 3V Interface
Features
l
100
Description
The CS4220/1 is a highly integrated, high performance,
24-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 CS4221 also includes an analog volume control ca-
pable of 113.5 dB attenuation in 0.5 dB steps. 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 digital effects processors, DAT, and
multitrack recorders.
ORDERING INFORMATION
CS4220-KS -10 to +70 °C
CS4221-KS -10 to +70 °C
CDB4220/1
28-pin SSOP
28-pin SSOP
Evaluation Board
dB Dynamic Range A/D Converters
l
100 dB Dynamic Range D/A Converters
l
105 dB DAC Signal-to-Noise Ratio (EIAJ)
l
Analog Volume Control (CS4221 only)
l
Differential Inputs / Outputs
l
On-chip Anti-aliasing and Output Smoothing
Filters
l
De-emphasis for 32, 44.1 and 48 kHz
l
Supports Master and Slave Modes
l
Single +5 V power supply
l
On-Chip Crystal Oscillator
l
3 - 5 V Digital Interface
I
(
DIF1
)
(
DIF0
)
(
DEM0
) (
DEM1
)
SCL/CCLK SDA/CDIN AD0/CS I
2
C/SPI
V
L
MCLK
VD
VA
RST
Control Port
Digital Filters
with De-Emphasis
Voltage
Reference
Left
DAC
Volume
Control
Analog Low Pass
and Output Stage
*
LRCK
SCLK
Serial Audio Data Interface
AOUTL+
AOUTL-
Right
DAC
Volume
Control
*
AOUTR+
AOUTR-
AINL-
AINL+
AINR-
AINR+
SDOUT
Digital Filters
SDIN
Left
ADC
Right
ADC
Clock OSC
XTI XTO
( ) = CS4220
DGND
AGND
*
= CS4221
Preliminary Product Information
P.O. Box 17847, Austin, Texas 78760
(512) 445 7222 FAX: (512) 445 7581
http://www.cirrus.com
This document contains information for a new product.
Cirrus Logic reserves the right to modify this product without notice.
Copyright
©
Cirrus Logic, Inc. 1999
(All Rights Reserved)
APR ‘00
DS284PP3
1
CIRRUS [ CIRRUS LOGIC ]
