WM9713L datasheet(5/111 Pages) WOLFSON

5 / 111 page

Preliminary Technical Data

WM9713L

PTD, March 2004, Rev 2.2

PIN DESCRIPTION

NAME

TYPE

DESCRIPTION

DBVDD

Supply

Digital I/O Buffer Supply

MCLKA

Digital Input

Master Clock A Input

MCLKB / GPIO6 / (ADA / MASK)

Digital In/Out

Master Clock B Input / GPIO6 / (ADA output / MASK input)

DGND1

Supply

Digital Ground (return path for both DCVDD and DBVDD)

SDATAOUT

Digital Input

Serial Data Output from Controller / Input to WM9713L

BITCLK

Digital Output

Serial Interface Clock Output to Controller

DGND2

Supply

Digital Ground (return path for both DCVDD and DBVDD)

SDATAIN

Digital Output

Serial Data Input to Controller / Output from WM9713L

DCVDD

Supply

Digital Core Supply

SYNC

Digital Input

Serial Interface Synchronisation Pulse from Controller

RESETB / GPIO7 / (PENDOWN)

Digital In / Out

Reset (asynchronous, active Low, resets all registers to their

default) / GPIO7 / (pen down output)

WIPER / AUX4 / GPIO8 / (SPDIF) Analogue In / Out

Top Sheet Connection for 5-wire Touchpanels / Auxiliary ADC

input / GPIO8 / (SPDIF digital audio output)

TPVDD

Supply

Touchpanel Driver Supply

X+/ BR

Analogue Input

Touchpanel Connection: X+ (Right) for 4-wire / bottom right for 5-

wire

Y+/TR

Analogue Input

Touchpanel Connection: Y+ (Top) for 4-wire / top right for 5-wire

X-/TL

Analogue Input

Touchpanel Connection: X- (Left) for 4-wire / top left for 5-wire

Y-/BL

Analogue Input

Touchpanel Connection: Y- (Bottom) for 4-wire / bottom left for 5-

wire

TPGND

Supply

Touchpanel Driver Ground

PCBEEP

Analogue Input

Line Input to analogue audio mixers, typically used for beeps

MONOIN

Analogue Input

Mono Input (RX)

MIC1

Analogue Input

Microphone preamp A input 1

MICCM

Analogue Input

Microphone common mode input

LINEL

Analogue Input

Left Line Input

LINER

Analogue Input

Right Line Input

AVDD

Supply

Analogue Supply (audio DACs, ADCs, PGAs, mic amps, mixers)

AGND

Supply

Analogue Ground

VREF

Analogue Output

Internal Reference Voltage (buffered CAP2)

MICBIAS

Analogue Output

Bias Voltage for Microphones (buffered CAP2

× 1.8)

MIC2A / COMP1 / AUX1

Analogue Input

Microphone preamp A input 2 / COMP1 input / Auxillary ADC input

MIC2B / COMP2 / AUX2

Analogue Input

Microphone preamp B input / COMP2 input / Auxillary ADC input

MONO

Analog output

Mono output driver (line or headphone)

CAP2

Analogue In / Out

Internal Reference Voltage (normally AVDD/2, if not overdriven)

OUT4

Analogue Output

Auxillary output driver (speaker, line or headphone)

SPKGND

Supply

Speaker ground (feeds output buffers on pins 33, 35, 36 and 37)

SPKL

Analogue Output

Left speaker driver (speaker, line or headphone)

SPKR

Analogue Output

Right speaker driver (speaker, line or headphone)

OUT3

Analogue Output

Auxillary output driver (speaker, line or headphone)

SPKVDD

Supply

Speaker supply (feeds output buffers on pins 33, 35, 36 and 37)

HPL

Analogue Output

Headphone left driver (line or headphone)

HPGND

Supply

Headphone ground (feeds output buffers on pins 39 and 41)

HPR

Analogue Output

Headphone right driver (line or headphone)

AGND2

Supply

Analogue ground, chip substrate

HPVDD

Supply

Headphone supply (feeds output buffers on pins 39 and 41)

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