CS4299
CrystalClear
SoundFusion
™
Audio Codec ’97
Features
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AC
’97 2.1 Compatible
Leading Mixed Signal Technology
Stereo Digital-to-Analog Converters
Stereo Analog-to-Digital Converters
Rate Converters
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Industry
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20-bit
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18-bit
or Exceeds the Microsoft
PC 99
Audio Performance Requirements
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S/PDIF Digital Audio Output
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CrystalClear
3D Stereo Enhancement
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Meets
Description
The CS4299 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 CS4299 enables the design of
PC 99-compliant desktop, portable, and entertainment
PCs.
Coupling the CS4299 with a PCI audio accelerator or
core logic supporting the AC ’97 interface, implements a
cost effective, superior quality, audio solution. The
CS4299 surpasses PC 99 and AC ’97 2.1 audio quality
standards.
ORDERING INFO
CS4299-KQ 48-pin TQFP
CS4299-JQ 48-pin TQFP
9x9x1.4 mm
9x9x1.4 mm
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Sample
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Four
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Two
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
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Dual
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Dual
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High
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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
SRC
PCM_DATA
ADC INPUT
18 bits MUX
GAIN / MUTE CONTROLS
MIXER / MUX SELECTS
AC’97
REGISTERS
OUTPUT
MIXER
SRC
S/PDIF
MIC1
MIC2
PHONE
PC_BEEP
PCM_DATA
DAC
20 bits
Σ
LINE_OUT
ALT_LINE_OUT
MONO_OUT
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. 2001
(All Rights Reserved)
JUN ‘01
DS319PP5
1
CIRRUS [ CIRRUS LOGIC ]
