CS4223
CS4224
24-Bit 105 dB Audio Codec with Volume Control
Features
l
105
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.
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
CS4224-KS -10 to +70 °C
CS4224-BS -40 to +85 °C
CDB4223/4
28-pin SSOP
28-pin SSOP
28-pin SSOP
28-pin SSOP
Evaluation Board
dB Dynamic Range A/D Converters
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105 dB Dynamic Range D/A Converters
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110 dB DAC Signal-to-Noise Ratio (EIAJ)
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Analog Volume Control (CS4224 only)
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Differential Inputs / Outputs
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On-chip Anti-aliasing and Output Smoothing
Filters
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De-emphasis for 32, 44.1 and 48 kHz
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Supports Master and Slave Modes
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Single +5 V power supply
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On-Chip Crystal Oscillator
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3 - 5 V Digital Interface
I
(
DIF1
)
(
DIF0
)
(
DEM0
) (
DEM1
)
2
SCL/CCLK SDA/CDIN AD0/CS I 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
( ) = CS4223
DGND
AGND
*
= CS4224
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
DS290PP3
1
CIRRUS [ CIRRUS LOGIC ]
