wm9714l Wolfson Microelectronics plc, wm9714l Datasheet - Page 2

• Manufacturer Part Number: wm9714l
• Description: Ac?97 Audio Codec
• Manufacturer: Wolfson Microelectronics plc

WM9714L
DESCRIPTION .......................................................................................................1
FEATURES.............................................................................................................1
APPLICATIONS .....................................................................................................1
BLOCK DIAGRAM .................................................................................................1
TABLE OF CONTENTS .........................................................................................2
PIN CONFIGURATION...........................................................................................4
ORDERING INFORMATION ..................................................................................4
PIN DESCRIPTION ................................................................................................5
ABSOLUTE MAXIMUM RATINGS.........................................................................6
RECOMMENDED OPERATING CONDITIONS .....................................................6
ELECTRICAL CHARACTERISTICS ......................................................................7
POWER CONSUMPTION ....................................................................................10
SIGNAL TIMING REQUIREMENTS .....................................................................11
DEVICE DESCRIPTION.......................................................................................17
AUDIO ADCS .......................................................................................................31
AUDIO DACS .......................................................................................................38
VARIABLE RATE AUDIO / SAMPLE RATE CONVERSION ...............................43
AUDIO INPUTS ....................................................................................................44
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AUDIO OUTPUTS.......................................................................................................... 7
AUDIO INPUTS.............................................................................................................. 8
AUXILIARY MONO DAC (AUXDAC).............................................................................. 8
PCM VOICE DAC (VXDAC) ........................................................................................... 8
AUXILIARY ADC............................................................................................................ 9
COMPARATORS ........................................................................................................... 9
REFERENCE VOLTAGES ............................................................................................. 9
DIGITAL INTERFACE CHARACTERISTICS................................................................ 10
AC97 INTERFACE TIMING.......................................................................................... 11
PCM AUDIO INTERFACE TIMING – SLAVE MODE.................................................... 15
PCM AUDIO INTERFACE TIMING – MASTER MODE ................................................ 16
INTRODUCTION.......................................................................................................... 17
AUDIO PATHS OVERVIEW......................................................................................... 18
CLOCK GENERATION ................................................................................................ 19
CLOCK DIVISION MODES .......................................................................................... 19
PLL MODE ................................................................................................................... 22
DIGITAL INTERFACES................................................................................................ 25
AC97 INTERFACE ....................................................................................................... 25
PCM INTERFACE ........................................................................................................ 26
STEREO ADC.............................................................................................................. 31
RECORD SELECTOR ................................................................................................. 32
RECORD GAIN............................................................................................................ 33
AUTOMATIC LEVEL CONTROL.................................................................................. 35
STEREO DAC.............................................................................................................. 38
VOICE DAC ................................................................................................................. 41
AUXILIARY DAC.......................................................................................................... 41
LINE INPUT ................................................................................................................. 44
MICROPHONE INPUT................................................................................................. 45
TABLE OF CONTENTS
PP, Rev 3.2, October 2008
Pre-Production
2