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ES1921 Datasheet, PDF (4/4 Pages) List of Unclassifed Manufacturers – AC 97 Rev 2.1 Audio CODEC
REV. D BLOCK DIAGRAM
ES1921 PRODUCT BRIEF
CD
LINE_IN
VIDEO
AUX
MIC1
MIC2
PHONE
PC_BEEP
RESET#
BIT_CLK
SYNC
SDATA_IN
SDATA_OUT
AFILT[1:0]
VREF
VREFOUT
DVSS DVDD
RECORD
SOURCE
PREAMP/MIC BOOST
PLAYBACK
MIXER
Left
Right
AC-LINK
PCM-out DACs
18-BIT
STERDEAOCDAC
FILTER
18-BIT
STERDEAOCDAC
18-BIT
Left
ADC
FILTER
18-BIT
ADC
PCM-in ADCs
Right
MONO
VOL
CTRL
MASTER
VOL
CTRL
REF GEN
POWER MGMT
MASTER
VOL
CTRL
XTL_IN XTL_OUT
EAPD ANTI_POP
AVDD
AVSS
ID[1:0]
MONO_OUT
LNLVL
LINE_OUT
No part of this publication may be reproduced, stored in a
retrieval system, transmitted, or translated in any form or
by any means, electronic, mechanical, manual, optical, or
otherwise, without the prior written permission of ESS
Technology, Inc.
ESS Technology, Inc. makes no representations or
warranties regarding the content of this document.
All specifications are subject to change without prior
notice.
ESS Technology, Inc. assumes no responsibility for any
errors contained herein.
(P) U.S. Patent 4,214,125 and others, other patents
pending.
AudioDrive® is a registered trademark of ESS Technology,
Inc.
All other trademarks are owned by their respective
holders and are used for identification purposes only.
4
© 2000 ESS Technology, Inc. All rights reserved.
SAM0353-042100