CS4223
CS4224
24-Bit 105 dB Audio Codec with Volume Control
Features
105 dB Dynamic Range A/D Converters
105 dB Dynamic Range D/A Converters
110 dB DAC Signal-to-Noise Ratio (EIAJ)
Analog Volume Control (CS4224 only)
Differential Inputs / Outputs
On-chip Anti-aliasing and Output Smoothing
Filters
De-emphasis for 32, 44.1 and 48 kHz
Supports Master and Slave Modes
Single +5 V power supply
On-Chip Crystal Oscillator
3 - 5 V Digital Interface
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-sigma
conversion techniques. The device operates from a sin-
gle +5 V power supply, and features low power
consumption. Selectable de-emphasis filter for 32, 44.1,
and 48 kHz sample rates is also included.
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.
Applications include digital effects processors, DAT, and
multitrack recorders.
ORDERING INFORMATION
CS4223-KS -10 to +70 °C
CS4223-BS -40 to +85 °C
CS4223-DS -40 to +85 °C
CS4224-KS -10 to +70 °C
CDB4223/4
28-pin SSOP
28-pin SSOP
28-pin SSOP
28-pin SSOP
Evaluation Board
I
(
DIF1
)
(
DIF0
)
(
DEM0
) (
DEM1
)
2
SCL/CCLK SDA/CDIN AD0/CS
I C/SPI
V
L
MCLK
VD
VA
RST
Control Port
Voltage
Reference
Left
DAC
Volume
Control
Digital Filters
with De-Emphasis
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
( ) = CS4223
DGND
AGND
*
= CS4224
©
Cirrus Logic, Inc.
http://www.cirrus.com
Copyright Cirrus Logic, Inc. 2002
(All Rights Reserved)
JAN ‘03
DS290F1
1
CIRRUS [ CIRRUS LOGIC ]
