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 single +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 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
CS4223-KS-10 to +70 °C28-pin SSOP
CS4223-BS-40 to +85 °C28-pin SSOP
CS4223-DS-40 to +85 °C28-pin SSOP
CS4224-KS-10 to +70 °C28-pin SSOP
CDB4223/4Evaluation Board
Cirrus Logic, Inc.
http://www.cirrus.com
RST
LRCK
SCLK
SDIN
SDOUT
(
)(
DIF1
SCL/CCLK SDA/CDIN AD0/CSMCLKVDVA
Serial Audio Data I nterface
)(
DIF0
Cont rol Port
Digital Filters
with De-Emphasis
Digital Filters
Clock OSC
XTI XTO
)
(
DEM0
Left
DAC
Right
DAC
Left
ADC
Right
ADC
( ) = CS4223
)
DEM1
2
IC/SPI
CopyrightCirrus Logic, Inc. 2002
V
L
Volume
Cont rol
Volume
Cont rol
DGNDAGND
= CS4224
*
(All Rights Reserved)
*
*
Voltag e
Reference
Analog Low Pass
and Output St age
AOUTL+
AOUTL-
AOUTR+
AOUTR-
AINLAINL+
AINRAINR+
JAN ‘03
DS290F1
1
TABLE OF CONTENTS
1. CHARACTERISTICS AND SPECIFICATIONS ........................................................................ 4
"Preliminary" product information describes products that are in product ion, but for which full charact erization data is not yet available. "Advance" product information describes products that are in development and subject to development changes. Cirrus Logic, Inc. and its subsidiaries ("Cirrus") bel ieve that the information
contained in this document is accurate and r eliable. However, the information is subject to change without notice and is provided "AS IS" wi thout warranty of any
kind (express or i mplied). Customers are advised to obtain the latest version of relevant informati on to verify, before placing orders, that informati on being rel ied
on is current and complete. All products are sold subject to the terms and conditions of sale supplied at the time of order acknowledgment, including those pertaining
to warranty, patent infringement, and limitation of l iability. No responsibility is assumed by Cirrus for the use of this informati on, including use of this information as
the basis for manufactur e or sale of any items, or for infringement of patents or other rights of third parties. This document is the property of Cirr us and by furnishing
this information, Cirrus grants no license, express or implied under any patents, mask work rights, copyrights, trademarks, trade secrets or other intel lectual property
rights. Cirrus owns the copyrights of the information contained herein and gives consent for copies to be made of the information only for use within your organization
with respect to Cirrus integrated circuits or other parts of Cirrus. This consent does not extend to other copying such as copying for gener al distribution, advertising
or promotional purposes, or for creating any work for resale.
An export permit needs to be obtained from the competent authorities of the Japanese Government if any of the products or technologies descri bed in thismaterial
and controlled under the "Foreign Exchange and Foreign Trade Law" is to be exported or taken out of Japan. An export license and/or quota needs to be obtained
from the competent authorities of t he Chinese Government if any of the products or technologies described in thi s material is subj ect to t he PRC Foreign Trade Law
and is to be exported or taken out of the PRC.
CERTAIN APPLICATIONS USING SEMICONDUCTOR PRODUCTS MAY INVOLVE POTENTIAL RISKS OF DEATH, PERSONAL INJURY, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE ( "CRITICAL APPLICATIONS"). CIRRUS PRODUCTS ARE NOT DESI GNED, AUTHORIZED, OR WARRANTED TO BE
SUITABLE FOR USE IN LIFE-SUPPORT DEVICES OR SYSTEMS OR OTHER CRITICAL APPLICATIONS. INCLUSION OF CIRRUS PRODUCTS IN SUCH
APPLICATIONS IS UNDERSTOOD TO BE FULLY AT THE CUSTOMER'S RI SK.
Purchase of I
those components in a standard I
Cirrus Logic, Cirrus, and the Cirrus Logi c logo designs are trademarks of Cirrus Logic, Inc. All other brand and product names i n this document may be trademarks
or servi ce marks of their respective owners.
2DS290F1
2
C components of Cirrus Logic, Inc., or one of its sublicensed Associated Companies conveys a license under the Philli ps I2C Patent Rights to use
2
Csystem.
CS4223 CS4224
5.5.3 Serial Data Output Format (DOF).................................................................................. 17
5.5.4 Serial Data Input Format (DIF) ...................................................................................... 17
5.6 Converter Status Report (Read Only) (address 06h) ....................................................... 18
5.6.1 Left and Right Channel Acceptance Bit (ACCR-ACCL) ................................................ 18
5.6.2 Left and Right Channel ADC Output Level (LVR and LVL) ........................................... 18
5.7 Master Clock Control (address 07h)................................................................................. 18
5.7.1 Master Clock Control (MCK).......................................................................................... 18
Table 5. Common Clock Frequencies ........................................................................................... 21
CS4223 CS4224
4DS290F1
CS4223 CS4224
1. CHARACTERISTICS AND SPECIFICATIONS
(All Min/Max characteristics and specifications are guaranteed over the Specified Operating Conditions. Typical
performance characteristics and specifications are derived from measurements taken at nominal supply voltages
and T
SPECIFIED OPERATING CONDITIONS
(AGND, DGND = 0 V, all voltages with respect to 0 V.)
Power SuppliesDigital
Ambient Operating TemperatureCommercial (-KS)
ABSOLUTE MAXIMUM RATINGS (AGND, DGND = 0 V, all voltages with respect to 0 V.)
Power SuppliesDigital
Input Current(Note 1)-±10mA
Analog Input Voltage(Note 2)-0.7VA + 0.7V
Digital Input Voltage(Note 2)-0.7VD + 0.7V
Ambient TemperaturePower Applied-55+125°C
Storage Temperature-65+150°C
=25°C.)
A
ParameterSymbolMinNomMaxUnit
VD
Analog
Digital
|VA-VD|
Industrial (-BS/-DS)
ParameterSymbolMinMaxUnit
Analog
VA
VL
T
T
VD
VA
AC
AI
4.75
4.75
2.7
-
-10
-40
-0.3
-0.3
5.0
5.0
5.0
-
-
-
6.0
6.0
5.25
5.25
5.25
0.4
70
85
V
V
V
V
°C
°C
V
V
WARNING: Operation at or beyond these limits may result in permanent damage to the device.
Normal operation is not guaranteed at these extremes.
Notes: 1. Any pin except supplies. Transient currents of up to 100 mA on the analog input pins will not cause SCR
latch-up.
2. The maximum over or under voltage is limited by the input current.
DS290F15
CS4223 CS4224
ANALOG CHARACTERISTICS (Full Scale Input Sine wave, 997 Hz; Fs = 48 kHz; Measurement
Bandwidth is 20 Hz to 20 kHz; Local components as shown in Figures 4 and 5.)
CS4223/4 - KSCS4223/4 - BS/ - DS
ParameterSymbol
Analog Input Characteristics
Total Harmonic DistortionTHD-0.0014--0.0014-%
Dynamic RangeA-weighted
unweighted
Total Harmonic Distortion + Noise(Note 3) THD+N--97-90--97-87dB
Interchannel Isolation(1 kHz)-90--90-dB
Interchannel Gain Mismatch--0.1--0.1dB
Offset Errorwith High Pass Filter--0--0LSB
Full Scale Input Voltage (Differential)1.92.02.11.92.02.1Vrms
Gain Drift-100--100-ppm/°C
Input Resistance10--10--kΩ
Input Capacitance--15--15pF
Common Mode Input Voltage-2.3--2.3-V
Common Mode Rejection RatioCMRR75--75--dB
A/D Decimation Filter Characteristics
Passband(Note 4)0-21.80-21.8kHz
Passband Ripple--±0.01--±0.01dB
Stopband(Note 4)30-611430-6114kHz
Stopband Attenuation(Note 5)80--80--dB
Group Delay (Fs = Output Sample Rate) Left
(Note 6)Right
Group Delay Variation vs. Frequency∆t
High Pass Filter Characteristics
Frequency Response-3 dB (Note 4)
-0.1 dB
Phase Deviation@ 20 Hz(Note 4)-10--10-Degree
Passband Ripple--0--0dB
t
gd_L
t
gd_R
gd
98
95
105
102
-
18/Fs
-
17/Fs
--0--0µs
-
-
3.7
20
-
-
-
-
-
-
95
92
105
102
-
18/Fs
-
17/Fs
-
-
3.7
20
UnitMinTypMaxMinTypMax
-
-
-
-
-
-
dB
dB
s
s
Hz
Hz
Notes: 3. Referenced to typical full-scale differential input voltage (2 Vrms).
4. Filter characteristics scale with output sample rate. For output sample rates, Fs, other than 48 kHz, the
0.01 dB passband edge is 0.4535x Fs and the stopband edge is 0.625x Fs.
5. The analog modulator samples the input at 6.144 MHz for an Fs equal to 48 kHz. There is no rejection
of input signals which are multiples of the sampling frequency (n x 6.144 MHz ±21.8 kHz where
n = 0,1,2,3...).