CS4223
CS4224
24-Bit 105 dB Audio Codec with Volume Control
Features
Description
The CS4223/4 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.
l 105 dB Dynamic Range A/D Converters
l 105 dB Dynamic Range D/A Converters
l 110 dB DAC Signal-to-Noise Ratio (EIAJ)
l Analog Volume Control (CS4224 only)
l Differential Inputs / Outputs
l On-chip Anti-aliasing and Output Smoothing
The CS4224 includes an analog volume control capable
of 113.5 dB attenuation in 0.5 dB steps. The analog vol-
ume control architecture preserves dynamic range
during attenuation. Volume control changes are imple-
mented using a “soft” ramping or zero crossing
technique.
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
Applications include digital effects processors, DAT, and
multitrack recorders.
ORDERING INFORMATION
CS4223-KS -10 to +70 °C 28-pin SSOP
CS4223-BS -40 to +85 °C 28-pin SSOP
CS4224-KS -10 to +70 °C 28-pin SSOP
CS4224-BS -40 to +85 °C 28-pin SSOP
CDB4223/4
Evaluation Board
I
(
)
(
)
(
)
(
)
DIF1
DIF0
DEM0
DEM1
SCL/CCLK SDA/CDIN AD0/CS I2C/SPI
MCLK
VD
VA
V
L
Voltage
Reference
RST
Control Port
*
*
Left
DAC
Volume
Control
AOUTL+
AOUTL-
LRCK
SCLK
Right
DAC
Volume
Control
AOUTR+
AOUTR-
SDIN
Left
AINL-
ADC
AINL+
SDOUT
Right
ADC
AINR-
AINR+
Clock OSC
XTI XTO
DGND
= CS4224
AGND
*
( ) = CS4223
This document contains information for a new product.
Cirrus Logic reserves the right to modify this product without notice.
Preliminary Product Information
Copyright Cirrus Logic, Inc. 1999
(All Rights Reserved)
APR ‘00
P.O. Box 17847, Austin, Texas 78760
(512) 445 7222 FAX: (512) 445 7581
http://www.cirrus.com
DS290PP3
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