XWM8731EDS Ver la hoja de datos (PDF) - Wolfson Microelectronics plc

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XWM8731EDS

Portable Internet Audio CODEC with Headphone Driver and Programmable Sample Rates

Wolfson Microelectronics plc 

WM8731

Advanced Information

CLOCKOUT ............................................................................................................................................ 31

DIGITAL AUDIO INTERFACES .............................................................................................................. 32

MASTER AND SLAVE MODE OPERATION .......................................................................................... 35

AUDIO DATA SAMPLING RATES

36

NORMAL MODE SAMPLE RATES ........................................................................................................ 37

128/192fs NORMAL MODE .................................................................................................................... 39

512/768fs NORMAL MODE .................................................................................................................... 39

USB MODE SAMPLE RATES................................................................................................................. 40

ACTIVATING DSP AND DIGITAL AUDIO INTERFACE

41

SOFTWARE CONTROL INTERFACE

41

SELECTION OF SERIAL CONTROL MODE .......................................................................................... 41

3-WIRE (SPI COMPATIBLE) SERIAL CONTROL MODE ...................................................................... 42

2-WIRE SERIAL CONTROL MODE........................................................................................................ 42

POWER DOWN MODES

43

REGISTER MAP

45

DIGITAL FILTER CHARACTERISTICS............................................................... 50

TERMINOLOGY

50

DAC FILTER RESPONSES ................................................................................. 51

ADC FILTER RESPONSES ................................................................................. 52

ADC HIGH PASS FILTER

53

DIGITAL DE-EMPHASIS CHARACTERISTICS................................................... 54

RECOMMENDED EXTERNAL COMPONENTS .................................................. 55

PACKAGE DIMENSIONS .................................................................................... 56

WOLFSON MICROELECTRONICS LTD

AI Rev 2.0 February 2001

3

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