CS4218 Datasheet, PDF (1/44 Pages) Cirrus Logic – 16-Bit Stereo Audio Codec

CS4218
16-Bit Stereo Audio Codec
Complete CMOS Stereo Audio Input
and Output System featuring:
• Delta-Sigma A/D and D/A Converters using
64x Oversampling.
• Input Anti-Aliasing and Output Smoothing
Filters.
• ^{Programmable Input Gain (0 dB to 22.5 dB).}
• ^{Programmable Output Attenuation (0 dB to}
46.5 dB).
• ^{Sample frequencies from 4 kHz to 50 kHz.}
• ^{Low Distortion, THD < 0.02% for DAC.}
THD < 0.02% for ADC.
• ^{Low Power Dissipation: 80 mA typical.}
• ^{Power-Down Mode : 1 mA typical.}
• ^{Pin Compatible with CS4216 when used in}
Serial Modes 3 and 4 (See Appendix A).
• ^{I2S(TM) Compatible Serial Mode (SM5).}
• ^{Operates from 5V or 3.3V Digital Power}
Supply. Requires 5V Analog Power Supply.
General Description
The CS4218 Stereo Audio Codec is a monolithic
CMOS device for computer multimedia, automotive,
and portable audio applications. It performs A/D and
D/A conversion, filtering, and level setting, creating 4
audio inputs and 2 audio outputs for a digital computer
system. The digital interfaces of left and right channels
are multiplexed into a single serial data bus with word
rates up to 50 kHz per channel.
ADCs and the DACs use delta-sigma modulation with
64X oversampling. The ADCs and DACs include digi-
tal decimation filters and output smoothing filters
on-chip which eliminate the need for external anti-alias-
ing filters.
The CS4218 is pin and function compatible with the
CS4216 when used in Serial modes 3 and 4. See the
Appendix A at the end of this data sheet for details.
I²S is a trademark of Philips.
Ordering Information:
CS4218-KL
0° to 70°C
CS4218-KQ
0° to 70°C
44-pin PLCC
44-pin TQFP
RESET
PDN
SMODE3
SMODE2
SMODE1
SDIN
SDOUT
SCLK
SSYNC
MF7:SFS1/F2
MF8:SFS2/F3
FILT
CLKIN
D/A
OUTPUT
MUTE
D/A
SERIAL INTERFACE CONTROL
VOLTAGE REFERENCE
A/D
INPUT INPUT
GAIN
MUX
A/D
LOUT
ROUT
DO1
MF5:DO2/INT
MF2:F2/CDIN
MF1:F1/CDOUT
DI1
MF6:DI2/F1
MF3:DI3/F3/CCLK
MF4:MA/CCS
REFGND
REFBYP
REFBUF
LIN1
LIN2
RIN1
RIN2
VD
VA
DGND
AGND
Crystal Semiconductor Corporation
P.O. Box 17847, Austin, TX 78760
[phone] FAX: [phone]
http://www.crystal.com
Copyright © Crystal Semiconductor Corporation 1996
(All Rights Reserved)
SEP ’96
DS135F1
1