WM8998 datasheet(8/307 Pages) WOLFSON

8 / 307 page

WM8998

Production Data

PD, October 2014, Rev 4.0

ORDERING INFORMATION

ORDER CODE

TEMPERATURE

RANGE

PACKAGE

MOISTURE

SENSITIVITY LEVEL

PEAK SOLDERING

TEMPERATURE

WM8998ECS/R

-40°C to +85°C

W-CSP

(Pb-free, Tape and reel)

MSL1

260°C

Note:

Reel quantity = 7000

PIN DESCRIPTION

A description of each pin on the WM8998 is provided below.

Note that a table detailing the associated power domain for every digital input / digital output pin is provided on the following page.

Note that, where multiple pins share a common name, these pins should be tied together on the PCB.

All Digital Output pins are CMOS outputs, unless otherwise stated.

PIN NO

NAME

TYPE

DESCRIPTION

ADDR

Digital Input

Control interface (I2C) address select

A2, B7, D10,

E12, H4

AGND

Supply

Analogue ground (Return path for AVDD)

J12

AIF1BCLK

Digital Input / Output

Audio interface 1 bit clock

F10

AIF1LRCLK

Digital Input / Output

Audio interface 1 left / right clock

H11

AIF1RXDAT

Digital Input

Audio interface 1 RX digital audio data

G10

AIF1TXDAT

Digital Output

Audio interface 1 TX digital audio data

AIF2BCLK

Digital Input / Output

Audio interface 2 bit clock

AIF2LRCLK

Digital Input / Output

Audio interface 2 left / right clock

AIF2RXDAT

Digital Input

Audio interface 2 RX digital audio data

AIF2TXDAT

Digital Output

Audio interface 2 TX digital audio data

AIF3BCLK

Digital Input / Output

Audio interface 3 bit clock

AIF3LRCLK

Digital Input / Output

Audio interface 3 left / right clock

AIF3RXDAT

Digital Input

Audio interface 3 RXdigital audio data

AIF3TXDAT

Digital Output

Audio interface 3 TX digital audio data

A3, A7, J4

AVDD

Supply

Analogue supply

CP1CA

Analogue Output

Charge pump 1 fly-back capacitor pin

B10

CP1CB

Analogue Output

Charge pump 1 fly-back capacitor pin

A10

CP1VOUTN

Analogue Output

Charge pump 1 negative output decoupling pin

CP1VOUTP

Analogue Output

Charge pump 1 positive output decoupling pin

B11

CP2CA

Analogue Output

Charge pump 2 fly-back capacitor pin

A11

CP2CB

Analogue Output

Charge pump 2 fly-back capacitor pin

C11

CP2VOUT

Analogue Output

Charge pump 2 output decoupling pin / Supply for LDO2

C10

CPGND

Supply

Charge pump 1 & 2 ground (Return path for CPVDD)

CPVDD

Supply

Supply for Charge Pump 1 & 2

G12, J10

DBVDD1

Supply

Digital buffer (I/O) supply (core functions and Audio Interface 1)

DBVDD2

Supply

Digital buffer (I/O) supply (for Audio Interface 2, GPIO2, GPIO4)

DBVDD3

Supply

Digital buffer (I/O) supply (for Audio Interface 3, GPIO3)

H13, J8

DCVDD

Supply

Digital core supply

D5, D6, D7,

D8, E4, E5,

E6, E7, E8,

E9, E10, F4,

F6, G6, G13,

DGND

Supply

Digital ground

(Return path for DCVDD, DBVDD1, DBVDD2 and DBVDD3)

EPOUTN

Analogue Output

Earpiece negative output

EPOUTP

Analogue Output

Earpiece positive output

WM8998 Datasheet(PDF) 8 Page - Wolfson Microelectronics plc

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