WM8998 datasheet(9/307 Pages) WOLFSON

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Production Data

WM8998

PD, October 2014, Rev 4.0

PIN NO

NAME

TYPE

DESCRIPTION

GPIO1

Digital Input / Output

General Purpose pin GPIO1.

The output configuration is selectable CMOS or Open Drain.

GPIO2

Digital Input / Output

General Purpose pin GPIO2.

The output configuration is selectable CMOS or Open Drain.

GPIO3

Digital Input / Output

General Purpose pin GPIO3.

The output configuration is selectable CMOS or Open Drain.

GPIO4

Digital Input / Output

General Purpose pin GPIO4.

The output configuration is selectable CMOS or Open Drain.

E11

GPIO5

Digital Input / Output

General Purpose pin GPIO5.

The output configuration is selectable CMOS or Open Drain.

D11

GPSWN

Analogue Output

General Purpose analogue switch contact (negative)

D12

GPSWP

Analogue Input

General Purpose analogue switch contact (positive)

B12

HPDETL

Analogue Input

Headphone left (HPOUTL) sense input

A12

HPDETR

Analogue Input

Headphone right (HPOUTR) sense input

A13

HPOUTFB1/

MICDET2

Analogue Input

HPOUTL and HPOUTR ground feedback pin 1/

Microphone & accessory sense input 2

HPOUTL

Analogue Output

Left headphone output

HPOUTR

Analogue Output

Right headphone output

IN1ALN/

DMICCLK1

Analogue Input /

Digital Output

Left channel negative differential Mic/Line input /

Digital MIC clock output 1

IN1ALP

Analogue Input

Left channel single-ended Mic/Line input /

Left channel positive differential Mic/Line input

IN1ARN/

DMICDAT1

Analogue input /

Digital Input

Right channel negative differential Mic/Line input /

Digital MIC data input 1

IN1ARP

Analogue Input

Right channel single-ended Mic/Line input /

Right channel positive differential Mic/Line input

IN2AN/

DMICCLK2

Analogue Input /

Digital Output

Negative differential Mic/Line input /

Digital MIC clock output 2

IN2AP/

DMICDAT2

Analogue Input /

Digital Input

Single-ended Mic/Line input /

Positive differential Mic/Line input/

Digital MIC data input 2

IN1BLN

Analogue Input

Left channel negative differential Mic/Line input

IN1BLP

Analogue Input

Left channel single-ended Mic/Line input /

Left channel positive differential Mic/Line input

IN1BRN

Analogue input

Right channel negative differential Mic/Line input

IN1BRP

Analogue Input

Right channel single-ended Mic/Line input /

Right channel positive differential Mic/Line input

IN2BN

Analogue Input

Negative differential Mic/Line input

IN2BP

Analogue Input

Single-ended Mic/Line input /

Positive differential Mic/Line input

F11

IRQ

¯¯¯

Digital Output

Interrupt Request (IRQ) output (default is active low).

The pin configuration is selectable CMOS or Open Drain.

JACKDET

Analogue Input

Jack detect input

F13

LDOENA

Digital Input

Enable pin for LDO1 (generates DCVDD supply).

Logic 1 input enables LDO1. If using external DCVDD supply,

then LDO1 is not used, and LDOENA must be held at logic 0.

E13

LDOVDD

Supply

Supply for LDO1

D13

LDOVOUT

Analogue Output

LDO1 output.

If using external DCVDD, then LDOVOUT must be left floating.

LINEOUTFB

Analogue Input

LINEOUTL and LINEOUTR ground loop noise rejection feedback

LINEOUTL

Analogue Output

Left line output

LINEOUTR

Analogue Output

Right line output

H12

MCLK1

Digital Input

Master clock 1

F12

MCLK2

Digital Input

Master clock 2

MICBIAS1

Analogue Output

Microphone bias 1

WM8998 Datasheet(PDF) 9 Page - Wolfson Microelectronics plc

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