CS4202
Audio Codec ’97 with Headphone Amplifier
Features
AC ’97 2.2 Compliant
Exceeds the Microsoft
PC 2001 Audio
Performance Requirements
Integrated High-Performance Headphone
Amplifier
On-chip PLL for use with External Clock
Sources
Integrated High-Performance Microphone
Pre-Amplifier
Automatic Jack Sense through GPIO
BIOS-Driver Interface for Audio Feature
Configuration through Software
S/PDIF Digital Audio Output
I
2
S Serial Digital Outputs Enable Cost
Effective Six Channel Applications
Independent Simultaneous S/PDIF and Six
Channel Audio Playback
20-bit Stereo Digital-to-Analog Converters
18-bit Stereo Analog-to-Digital Converters
Sample Rate Converters
Three Analog Line-level Stereo Inputs
High Quality Pseudo-Differential CD Input
Two Analog Line-level Mono Inputs
Dual Microphone Inputs
Stereo and Mono Line-level Outputs
Extensive Power Management Support
Description
The CS4202 is an AC ’97 2.2 compliant stereo audio co-
dec designed for PC multimedia systems. It uses
industry leading delta-sigma and mixed signal technolo-
gy. This advanced technology and these features are
designed to help enable the design of PC 99 and
PC 2001 compliant high-quality audio systems for desk-
top, portable, and entertainment PCs.
Coupling the CS4202 with a PCI audio accelerator or
core logic supporting the AC ’97 interface implements a
cost effective, superior quality audio solution. The
CS4202 surpasses PC 99, PC 2001, and AC ’97 2.2 au-
dio quality standards.
ORDERING INFO
CS4202-JQ 48-pin TQFP
9x9x1.4 mm
AC-LINK AND AC '97
REGISTERS
ANALOG INPUT MUX
AND OUTPUT MIXER
TEST
PWR
MGT
SRC
LINE
PCM_DATA
18 bit
ADC
INPUT
MUX
SYNC
BIT_CLK
SDATA_OUT
SDATA_IN
RESET#
ID0#
ID1#
AC-
LINK
CD
AUX
VIDEO
MIC1
MIC2
PHONE
PC_BEEP
INPUT
MIXER
GAIN / MUTE CONTROLS
MIXER / MUX SELECTS
AC '97
REGISTERS
Σ
OUTPUT
MIXER
EAPD
SPDIF_OUT
GPIO[4:0]
SDOUT,LRCLK,SCLK
GPIO, S/PDIF
SERIAL DATA PORT
SRC
LINE_OUT
HP_OUT
MONO_OUT
PCM_DATA
20 bit
DAC
Σ
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. 2002
(All Rights Reserved)
MAY ’02
DS549PP1
1
©
CIRRUS [ CIRRUS LOGIC ]
