Cirrus Logic CS4224 - Manual

1
Copyright  Cirrus Logic, Inc. 2002
(All Rights Reserved)
Cirrus Logic, Inc.
http://www.cirrus.com
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 28-pin SSOP
CS4223-BS -40 to +85 °C 28-pin SSOP
CS4223-DS -40 to +85 °C 28-pin SSOP
CS4224-KS -10 to +70 °C 28-pin SSOP
CDB4223/4 Evaluation Board
I
SCL/CCLK SDA/CDIN AD0/CS MCLK VD VA
RST
LRCK
SCLK
SDIN
SDOUT
DGND AGND
AOUTL+
AOUTL-
AOUTR+
AOUTR-
AINL-
AINL+
AINR-
AINR+
Control Port
Ser
ial
A
udi
o
D
at
a
Int
er
fa
c
e
D
ig
it
a
l
F
ilt
e
rs
w
it
h
D
e
-E
m
phas
is
D
igi
ta
l
F
ilt
er
s
Left
DAC
Right
DAC
A
nal
o
g
Lo
w
P
as
s
and
O
u
tput
St
age
Voltage
Reference
Left
ADC
Right
ADC
Volume
Control
(DIF1) (DIF0) (DEM0)
I C/SPI
(DEM1)
2
Clock OSC
( ) = CS4223
Volume
Control
V
L
XTI XTO
* = CS4224
*
*
JAN ‘03
DS290F1
CS4223
CS4224