WM8750 datasheet(4/60 Pages) WOLFSON

4 / 60 page

WM8750BL

Production Data

PD, Rev 4.1, August 2012

PIN DESCRIPTION

PIN NO

NAME

TYPE

DESCRIPTION

MCLK

Digital Input

Master Clock

DCVDD

Supply

Digital Core Supply

DBVDD

Supply

Digital Buffer (I/O) Supply

DGND

Supply

Digital Ground (return path for both DCVDD and DBVDD)

BCLK

Digital Input / Output

Audio Interface Bit Clock

DACDAT

Digital Input

DAC Digital Audio Data

DACLRC

Digital Input / Output

Audio Interface Left / Right Clock/Clock Out

ADCDAT

Digital Output

ADC Digital Audio Data

ADCLRC

Digital Input / Output

Audio Interface Left / Right Clock

MONOOUT

Analogue Output

Mono Output

OUT3

Analogue Output

Analogue Output 3 (can be used as Headphone Pseudo Ground)

ROUT1

Analogue Output

Right Output 1 (Line or Headphone)

LOUT1

Analogue Output

Left Output 1 (Line or Headphone)

HPGND

Supply

Supply for Analogue Output Drivers (LOUT1/2, ROUT1/2)

ROUT2

Analogue Output

Right Output 1 (Line or Headphone or Speaker)

LOUT2

Analogue Output

Left Output 1 (Line or Headphone or Speaker)

HPVDD

Supply

Supply for Analogue Output Drivers (LOUT1/2, ROUT1/2, MONOUT)

AVDD

Supply

Analogue Supply

AGND

Supply

Analogue Ground (return path for AVDD)

VREF

Analogue Output

Reference Voltage Decoupling Capacitor

VMID

Analogue Output

Midrail Voltage Decoupling Capacitor

MICBIAS

Analogue Output

Microphone Bias

RINPUT3 /

HPDETECT

Analogue Input

Right Channel Input 3 or Headphone Plug-in Detection

LINPUT3

Analogue Input

Left Channel Input 3

RINPUT2

Analogue Input

Right Channel Input 2

LINPUT2

Analogue Input

Left Channel Input 2

RINPUT1

Analogue Input

Right Channel Input 1

LINPUT1

Analogue Input

Left Channel Input 1

MODE

Digital Input

Control Interface Selection

CSB

Digital Input

Chip Select / Device Address Selection

SDIN

Digital Input/Output

Control Interface Data Input / 2-wire Acknowledge output

SCLK

Digital Input

Control Interface Clock Input

Note:

It is recommended that the QFN ground paddle should be connected to analogue ground on the application PCB.

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