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CS4294-JQ Datasheet(PDF) 2 Page - Cirrus Logic |
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2 / 42 page CS4294 2 DS326PP4 TABLE OF CONTENTS 1. CHARACTERISTICS AND SPECIFICATIONS ........................................................................ 5 AUDIO ANALOG CHARACTERISTICS.................................................................................... 5 ABSOLUTE MAXIMUM RATINGS ........................................................................................... 6 RECOMMENDED OPERATING CONDITIONS ....................................................................... 6 MIXER CHARACTERISTICS.................................................................................................... 6 DIGITAL CHARACTERISTICS ................................................................................................. 6 SERIAL PORT TIMING............................................................................................................. 7 2. GENERAL DESCRIPTION ..................................................................................................... 10 2.1 Overview .......................................................................................................................... 10 2.2 Modes of Operation .........................................................................................................10 2.2.1 Mode 0 ................................................................................................................ 10 2.2.2 Mode 1 ................................................................................................................ 10 3. DIGITAL SECTION ................................................................................................................. 10 3.1 AC-Link ............................................................................................................................ 10 3.2 Control registers ............................................................................................................... 11 4. ANALOG SECTION ................................................................................................................ 11 4.1 Audio Output Mixer .......................................................................................................... 12 4.2 Audio Input Mux ............................................................................................................... 12 4.3 Audio Input Mixer ............................................................................................................. 12 4.4 Audio Volume Control ...................................................................................................... 12 5. AC ‘97 ..................................................................................................................................... 12 5.1 AC ‘97 Frame Definition ................................................................................................... 12 5.2 AC-Link Serial Data Output Frame .................................................................................. 12 5.3 AC-Link Audio Output Frame ........................................................................................... 13 5.3.1 Serial Data Output Slot Tags (Slot 0)................................................................... 13 5.3.2 Register Address (Slot 1) ..................................................................................... 13 5.3.3 Register Write Data (Slot 2) ................................................................................. 14 5.3.4 Playback Data (Slots 3-11) .................................................................................. 14 5.3.5 GPIO Data (Slot12) .............................................................................................. 14 5.4 AC-Link Audio Input Frame .............................................................................................. 14 5.4.1 Serial Data Input Slot Tag Bits (Slot 0) ............................................................... 14 5.4.2 Read-Back Address Port (Slot 1) ......................................................................... 15 5.4.3 Read-Back Data Port (Slot 2)............................................................................... 15 5.4.4 PCM Capture Data (Slot 3-11) ............................................................................. 15 5.4.5 GPIO Pin Status (Slot 12) .................................................................................... 15 Contacting Cirrus Logic Support For a complete listing of Direct Sales, Distributor, and Sales Representative contacts, visit the Cirrus Logic web site at: http://www.cirrus.com/corporate/contacts/ CrystalClear is a trademark of Cirrus Logic, Inc. SoundFusion is a registered trademark of Cirrus Logic, Inc. Preliminary product information describes products which are in production, but for which full characterization data is not yet available. Advance prod- uct information describes products which are in development and subject to development changes. Cirrus Logic, Inc. has made best efforts to ensure that the information contained in this document is accurate and reliable. However, the information is subject to change without notice and is provided “AS IS” without warranty of any kind (express or implied). No responsibility is assumed by Cirrus Logic, Inc. for the use of this information, nor for infringements of patents or other rights of third parties. This document is the property of Cirrus Logic, Inc. and implies no license under patents, copy- rights, trademarks, or trade secrets. No part of this publication may be copied, reproduced, stored in a retrieval system, or transmitted, in any form or by any means (electronic, mechanical, photographic, or otherwise) without the prior written consent of Cirrus Logic, Inc. Items from any Cirrus Logic webbiest or disk may be printed for use by the user. However, no part of the printout or electronic files may be copied, reproduced, stored in a retrieval system, or transmitted, in any form or by any means (electronic, mechanical, photographic, or otherwise) without the prior written consent of Cirrus Logic, Inc.Furthermore, no part of this publication may be used as a basis for manufacture or sale of any items without the prior written consent of Cirrus Logic, Inc. The names of products of Cirrus Logic, Inc. or other vendors and suppliers appearing in this document may be trade- marks or service marks of their respective owners which may be registered in some jurisdictions. A list of Cirrus Logic, Inc. trademarks and service |
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