Cirrus Logic CS4202 - Manual

Preliminary Product Information
This document contains information for a new product.
Cirrus Logic reserves the right to modify this product without notice.
1
Copyright © Cirrus Logic, Inc. 2005
(All Rights Reserved)
http://www.cirrus.com
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-JQZ, Lead Free 48-pin TQFP 9x9x1.4 mm
AC '97
REGISTERS
LINE
CD
AUX
VIDEO
MIC1
MIC2
PHONE
PC_BEEP
LINE_OUT
HP_OUT
MONO_OUT
ANALOG INPUT MUX
AND OUTPUT MIXER
AC-LINK AND AC '97
REGISTERS
PCM_DATA
GAIN / MUTE CONTROLS
INPUT
MUX
Σ
OUTPUT
MIXER
MIXER / MUX SELECTS
AC-
LINK
PWR
MGT
TEST
SYNC
BIT_CLK
SDATA_OUT
SDATA_IN
RESET#
PCM_DATA SRC
SRC
ID0#
ID1#
GPIO, S/PDIF
SERIAL DATA PORT
EAPD
SPDIF_OUT
GPIO[4:0]
SDOUT,LRCLK,SCLK
18 bit
ADC
20 bit
DAC
Σ
INPUT
MIXER
JULY '05
DS549PP2