Cirrus-logic AN187 Manual de usuario

Busca en linea o descarga Manual de usuario para Hardware Cirrus-logic AN187. Cirrus Logic AN187 User Manual Manual de usuario

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Copyright
Cirrus Logic, Inc. 2000
(All Rights Reserved)
P.O. Box 17847, Austin, Texas 78760
(512) 445 7222 FAX: (512) 445 7581
http://www.cirrus.com
AN187
Application Note
USING THE EP72/7312 TO IMPLEMENT A SOFT MODEM
OCT ‘00
AN187REV1
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Indice de contenidos

Pagina 1 - Application Note

1Copyright  Cirrus Logic, Inc. 2000(All Rights Reserved)P.O. Box 17847, Austin, Texas 78760(512) 445 7222 FAX: (512) 445 7581http://www.cirrus.comA

Pagina 2 - LIST OF TABLES

AN18710 AN187REV16. SILICON LABORATORIES CONTACT INFORMATIONSilicon Laboratories, Inc.4635 Boston LaneAustin, Texas 78735Phone: 1-877-444-3032Email:

Pagina 5

AN1872 AN187REV1TABLE OF CONTENTS1. INTRODUCTION ...

Pagina 6 - 6 AN187REV1

AN187AN187REV1 31. INTRODUCTIONAs the world of PDAs and other hand-held devices evolves, more and more of these products desire the support of an anal

Pagina 7 - Figure 2. CPLD Schematic

AN1874 AN187REV1SCLK is derived from MCLK. It is ½ MCLK. In the default mode, the DAI is in the Master mode. In this mode it generates itsown MCLK clo

Pagina 8 - DAA CHIP SET

AN187AN187REV1 54. INTERFACING THE EP72/7312 TO THE SI3034The EP7312 can generate a 4.096 MHz internal clock. But, in the EP7212, the DAI interface ca

Pagina 9

6 AN187REV1AN187Figure 1. Circuit Schematic

Pagina 10 - 10 AN187REV1

7 AN187REV1AN187I236I203I2418I2211I2127I3I4I5I6I7I8I9I10I11I12I13I14I15I16DQI17DQI18DQI19DQI2DQnSCLK_alsonSCLKSCLK_DLYDLRCK_DLYDnFSYNCFigure 2. CPLD

Pagina 11 - • Notes •

AN1878 AN187REV15. PLD EQUATIONS; SOFTMODEM VIA EP72/7312 DAI TO THE SI3034 DAA CHIP SETP-Terms Fan-in Fan-out Type Name (attributes)Equations1/1 1 1

Pagina 12

AN187AN187REV1 92/2 2 1 node N_9N_9 = (N_11 & !N_12 # !N_11 & N_12)Reverse Polarity — !N_9 = (!N_11 & !N_12 # N_11 & N_12)1/2 2 1 node

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