WM8993 datasheet(7/229 Pages) WOLFSON

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Production Data

WM8993

PD, November 2010, Rev 4.0

PIN DESCRIPTION

PIN NO

NAME

TYPE

DESCRIPTION

MICBIAS1

Analogue Output

Microphone bias

MICBIAS2

Analogue Output

Microphone bias

IN1LN

Analogue Input

Left channel single-ended MIC input /

Left channel negative differential MIC input

IN1LP

Analogue Input

Left channel line input /

Left channel positive differential MIC input

IN2LN/GI7

Analogue Input /

Digital Input

Left channel line input /

Left channel negative differential MIC input /

IN2LP/VRXN

Analogue Input

Left channel line input /

Left channel positive differential MIC input /

Mono differential negative input (RXVOICE -)

IN1RN

Analogue Input

Right channel single-ended MIC input /

Right channel negative differential MIC input

IN1RP

Analogue Input

Right channel line input /

Right channel positive differential MIC input

IN2RN/GI8

Analogue Input /

Digital Input

Right channel line input /

Right channel negative differential MIC input /

IN2RP/VRXP

Analogue Input

Left channel line input /

Left channel positive differential MIC input /

Mono differential positive input (RXVOICE +)

DCVDD

Supply

Digital core supply

DGND

Supply

Digital ground (Return path for both DCVDD and DBVDD)

DBVDD

Supply

Digital buffer (I/O) supply

AVDD1

Supply

Analogue core supply

AVDD2

Supply

Analogue class D and FLL supply

AGND

Supply

Analogue ground (Return path for AVDD1)

CPVDD

Supply

Charge pump supply

CPGND

Supply

Charge pump ground (Return path for CPVDD)

SPKVDD

Supply

Supply for speaker driver

SPKGND

Supply

Ground for speaker driver (Return path from SPKVDD)

CPVOUTP

Analogue Output

Charge pump positive supply decoupling pin (HPOUT1L, HPOUT1R)

CPVOUTN

Analogue Output

Charge pump negative supply decoupling pin (HPOUT1L, HPOUT1R)

CPFB1

Analogue Output

Charge pump flyback capacitor pin

CPFB2

Analogue Output

Charge pump flyback capacitor pin

MCLK

Digital Input

Master clock

BCLK

Digital Input / Output

Audio interface bit clock

LRCLK

Digital Input / Output

Audio interface left / right clock

DACDAT

Digital Input

DAC digital audio data

ADCDAT

Digital Output

ADC digital audio data

SCLK

Digital Input

Control interface clock input

SDAT

Digital Input / Output

Control interface data input and output / 2-wire acknowledge output

SPKOUTLP

Analogue Output

Left speaker positive output

SPKOUTLN

Analogue Output

Left speaker negative output

SPKOUTRP

Analogue Output

Right speaker positive output

SPKOUTRN

Analogue Output

Right speaker negative output

SPKMONO

Digital Input

2W Mono/1W Stereo speaker select

HPOUT1L

Analogue Output

Left headphone output

HPOUT1R

Analogue Output

Right headphone output

HPOUT1FB

Analogue Input

HPOUT1L and HPOUT1R ground loop noise rejection feedback

HPOUT2P

Analogue Output

Earpiece speaker non-inverted output

HPOUT2N

Analogue Output

Earpiece speaker inverted output

WM8993 Datasheet(PDF) 7 Page - Wolfson Microelectronics plc

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