WM8753(2005) 데이터 시트보기 (PDF) - Wolfson Microelectronics plc

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WM8753
(Rev.:2005)

Hi-Fi and Telephony Dual CODEC

Wolfson Microelectronics plc 

Pre-Production

TABLE OF CONTENTS

WM8753L

DESCRIPTION .......................................................................................................1

FEATURES ............................................................................................................1

APPLICATIONS .....................................................................................................1

TABLE OF CONTENTS .........................................................................................2

PIN CONFIGURATION - QFN................................................................................4

PIN CONFIGURATION - BGA ...............................................................................4

ORDERING INFORMATION ..................................................................................4

PIN DESCRIPTION ................................................................................................5

ABSOLUTE MAXIMUM RATINGS.........................................................................6

SIMULATED THERMAL PROPERTIES......................................................................... 6

RECOMMENDED OPERATING CONDITIONS .....................................................6

ELECTRICAL CHARACTERISTICS ......................................................................7

TERMINOLOGY ............................................................................................................ 9

OUTPUT PGA’S LINEARITY ....................................................................................... 10

SIGNAL TIMING REQUIREMENTS .....................................................................12

SYSTEM CLOCK TIMING ........................................................................................... 12

MODE/GPIO3 AND CSB/GPIO5 LATCH ON POWERUP TIMING .............................. 12

AUDIO INTERFACE TIMING – MASTER MODE......................................................... 13

AUDIO INTERFACE TIMING – SLAVE MODE ............................................................ 14

CONTROL INTERFACE TIMING – 3-WIRE MODE ..................................................... 15

CONTROL INTERFACE TIMING – 2-WIRE MODE ..................................................... 16

INTERNAL POWER ON RESET CIRCUIT ..........................................................17

DEVICE DESCRIPTION .......................................................................................18

INTRODUCTION ......................................................................................................... 18

INPUT SIGNAL PATH.................................................................................................. 20

MICROPHONE INPUTS ............................................................................................. 24

PGA CONTROL........................................................................................................... 28

AUTOMATIC LEVEL CONTROL (ALC) ....................................................................... 31

3D STEREO ENHANCEMENT .................................................................................... 34

OUTPUT SIGNAL PATH.............................................................................................. 36

ANALOGUE OUTPUTS ............................................................................................... 42

HEADPHONE SWITCH ............................................................................................... 46

HEADPHONE OUTPUT............................................................................................... 47

INTERRUPT CONTROLLER ....................................................................................... 48

GENERAL PURPOSE INPUT/OUTPUT ...................................................................... 51

DIGITAL AUDIO INTERFACES ................................................................................... 53

AUDIO INTERFACES CONTROL................................................................................ 58

CONTROL INTERFACE .............................................................................................. 62

MASTER CLOCK AND PHASE LOCKED LOOP ......................................................... 66

AUDIO SAMPLE RATES ............................................................................................. 69

POWER SUPPLIES ..................................................................................................... 71

POWER MANAGEMENT............................................................................................. 72

REGISTER MAP.......................................................................................................... 77

DIGITAL FILTER CHARACTERISTICS...............................................................79

TERMINOLOGY .......................................................................................................... 80

DAC FILTER RESPONSES ......................................................................................... 81

ADC FILTER RESPONSES ......................................................................................... 82

VOICE FILTER RESPONSES..............................................................................84

VOICE DAC FILTER RESPONSES ............................................................................. 84

VOICE ADC FILTER RESPONSES ............................................................................. 84

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PP Rev 3.4 November 2005

2

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