CS4297A Datasheet, PDF (1/52 Pages) Cirrus Logic – CrystalClear SoundFusion Audio Codec 97

CS4297A
CrystalClear^ SoundFusion™ Audio Codec ’97
Features
l AC ’97 2.1 Compatible
l Industry Leading Mixed Signal Technology
l 20-bit Stereo Digital-to-Analog Converters
l 18-bit Stereo Analog-to-Digital Converters
l Four Analog Line-level Stereo Inputs for
LINE_IN, CD, VIDEO, and AUX
l Two Analog Line-level Mono Inputs for
Modem and Internal PC Beep
l Dual Stereo Line-level Outputs for
LINE_OUT and ALT_LINE_OUT
l Dual Microphone Inputs
l High Quality Pseudo-Differential CD Input
l Extensive Power Management Support
l Meets or Exceeds the Microsoft^ PC 99
Audio Performance Requirements
l S/PDIF Digital Audio Output
l CrystalClear^ 3D Stereo Enhancement
Description
The CS4297A is an AC ’97 2.1 compatible stereo audio
codec designed for PC multimedia systems. Using the
industry leading CrystalClear^ delta-sigma and mixed
signal technology, the CS4297A enables the design of
PC 99-compliant desktop, portable, and entertainment
PCs.
Coupling the CS4297A with a PCI audio accelerator or
core logic supporting the AC ’97 interface, implements a
cost effective, superior quality, audio solution. The
CS4297A surpasses PC 99 and AC ’97 2.1 audio quality
standards.
ORDERING INFO
CS4297A-KQ 48-pin TQFP
CS4297A-JQ 48-pin TQFP
9x9x1.4 mm
9x9x1.4 mm
SYNC
BIT_CLK
SDATA_OUT
SDATA_IN
RESET#
AC-LINK AND AC’97
REGISTERS
PWR
MGT
ANALOG INPUT MUX
AND OUTPUT MIXER
AC-
LINK
AC’97
REGISTERS
S/PDIF
PCM_DATA
GAIN / MUTE CONTROLS
MIXER / MUX SELECTS
PCM_DATA
ADC _INPUT
18 bits _MUX
OUTPUT
MIXER
Σ ^DAC
20 bits
LINE
CD
AUX
VIDEO
MIC1
MIC2
PHONE
PC_BEEP
LINE_OUT
ALT_LINE_OUT
MONO_OUT
Preliminary Product Information
This document contains information for a new product.
Cirrus Logic reserves the right to modify this product without notice.
P.O. Box 17847, Austin, Texas 78760
[phone] FAX: [phone]
http://www.cirrus.com
Copyright  Cirrus Logic, Inc. 2001
(All Rights Reserved)
JUN ‘01
DS318PP5
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