cs4297 Cirrus Logic, Inc., cs4297 Datasheet

cs4297

Manufacturer Part Number

cs4297

Description

Crystalclear Soundfusion Audio Codec 97 Logic

Manufacturer

Cirrus Logic, Inc.

Datasheet

1.CS4297.pdf (46 pages)

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FEATURES

n AC’97 1.03 Compatible

n Industry Leading Mixed Signal Technology

n 18-bit stereo full-duplex Codec with fixed 48 kHz

n Four analog line-level stereo inputs for connec-

n Two analog line-level mono inputs for speaker-

n Mono microphone input switchable from two

n High quality differential CD input

n Dual Stereo line level outputs

n Extensive power management support

n Meets or exceeds Microsoft’s

ORDERING INFO

DS242F5

sampling rate

tion from LINE IN, CD, VIDEO and AUX

phone and internal PC Beeper

external sources

audio performance requirements.

CS4297-KQ, 48-pin TQFP, 9x9x1 mm

CS4297-JQ, 48-pin TQFP, 9x9x1 mm

SDATA_OUT

SYNC

BIT_CLK

SDATA_IN

RESET#

AC-LINK AND AC’97

REGISTERS

AC’97

PWR

MGT

LINK

AC-

PC’97 and PC’98

GAIN / MUTE CONTROLS

MIXER / MUX SELECTS

PCM_DATA

Cirrus Logic, Inc. 1999

DESCRIPTION

The CS4297 is a AC’97 1.03 compatible stereo au-

dio Codec designed for PC multimedia systems.

Using the industry leading CrystalClear delta-sig-

ma and mixed signal technology, the CS4297

paves the way for PC’97-compliant desktop, porta-

ble, and entertainment PCs, where high-quality

audio is required.

The CS4297, when coupled with a DC’97 PCI au-

dio accelerator such as the CS4610, implements a

cost-effective, superior quality, two-chip audio so-

lution. The CS4297 Audio Codec ’97 and CS4610

PCI Audio Accelerator are the first members of the

SoundFusion family of advanced PCI audio prod-

ucts for next generation multimedia PCs.

SoundFusion™ Audio

ANALOG INPUT MUX

AND OUTPUT MIXER

CrystalClear™

ADC

18 bits

DAC

18 bits

Codec ’97

OUTPUT

MIXER

INPUT

MUX

Product Data Sheet

LINE

AUX

VIDEO

MIC1

MIC2

PHONE

PC_BEEP

LINE_OUT

ALT_LINE_OUT

MONO_OUT

CS4297

JUN ‘99

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