CS4297A
CS4297A
CrystalClear
®
SoundFusion™ Audio Codec ‘97
CrystalClear
®
SoundFusion™ Audio Codec ‘97
CrystalClear SoundFusion
™
Audio Codec ’97
Features
l
AC
’97 2.1 Compatible
Leading Mixed Signal Technology
l
Industry
l
20-bit
l
18-bit
l
Four
l
Two
or Exceeds the Microsoft
PC 99
Audio Performance Requirements
l
S/PDIF Digital Audio Output
l
CrystalClear
3D Stereo Enhancement
l
Meets
Stereo Digital-to-Analog Converters
Stereo Analog-to-Digital Converters
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-KQZ
lead-free
48-pin TQFP 9x9x1.4 mm
CS4297A-JQZ
lead-free 48-pin
TQFP 9x9x1.4 mm
Analog Line-level Stereo Inputs for
LINE_IN, CD, VIDEO, and AUX
Analog Line-level Mono Inputs for
Modem and Internal PC Beep
Stereo Line-level Outputs for
LINE_OUT and ALT_LINE_OUT
Microphone Inputs
Quality Pseudo-Differential CD Input
Power Management Support
l
Dual
l
Dual
l
High
l
Extensive
AC-LINK AND AC’97
REGISTERS
PWR
MGT
ANALOG INPUT MUX
AND OUTPUT MIXER
LINE
CD
AUX
VIDEO
SYNC
BIT_CLK
SDATA_OUT
SDATA_IN
RESET#
AC-
LINK
PCM_DATA
ADC INPUT
18 bits MUX
GAIN / MUTE CONTROLS
MIXER / MUX SELECTS
AC’97
REGISTERS
PCM_DATA
S/PDIF
DAC
20 bits
OUTPUT
MIXER
MIC1
MIC2
PHONE
PC_BEEP
Σ
LINE_OUT
ALT_LINE_OUT
MONO_OUT
Preliminary Product Information
P.O. Box 17847, Austin, Texas 78760
(512)
http://www.cirrus.com
445 7581
445 7222 FAX: (512)
http://www.cirrus.com
for a new product.
Preliminary Product Information
This
This document contains information
for a
this product without notice.
Cirrus Logic reserves the right to modify
new product.
document contains information
Cirrus Logic reserves the right to modify this product without notice.
MAR
‘06
Copyright
Inc. 2006
Copyright
©
Cirrus Logic,
Cirrus Logic, Inc. 2006
March '06
DS318PP5
(All Rights
(All Rights Reserved)
Reserved)
DS318PP6
1
CIRRUS [ CIRRUS LOGIC ]
