WM8281ECSSLASHR datasheet(8/392 Pages) CIRRUS

8 / 392 page

WM8281

Rev 4.0

ORDERING INFORMATION

ORDER CODE

TEMPERATURE

RANGE

PACKAGE

MOISTURE

SENSITIVITY LEVEL

PEAK SOLDERING

TEMPERATURE

WM8281ECS/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 WM8281 is provided below.

Note that a table detailing the associated power domain for every input and 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

AGND1

Supply

Analogue ground (Return path for AVDD1)

D13

AGND2

Supply

Analogue ground (Return path for AVDD2)

J13

AIF1BCLK

Digital Input / Output

Audio interface 1 bit clock

H13

AIF1RXDAT

Digital Input

Audio interface 1 RX digital audio data

H12

AIF1LRCLK

Digital Input / Output

Audio interface 1 left / right clock

J11

AIF1TXDAT

Digital Output

Audio interface 1 TX digital audio data

AIF2BCLK

Digital Input / Output

Audio interface 2 bit clock

AIF2RXDAT

Digital Input

Audio interface 2 RX digital audio data

AIF2LRCLK

Digital Input / Output

Audio interface 2 left / right clock

AIF2TXDAT

Digital Output

Audio interface 2 TX digital audio data

AIF3BCLK

Digital Input / Output

Audio interface 3 bit clock

AIF3RXDAT

Digital Input

Audio interface 3 RXdigital audio data

AIF3LRCLK

Digital Input / Output

Audio interface 3 left / right clock

AIF3TXDAT

Digital Output

Audio interface 3 TX digital audio data

AVDD1

Supply

Analogue supply

C14

AVDD2

Supply

Analogue supply

F12

CIF1ADDR/

CIF1SS

¯¯¯¯¯¯

Digital Input

Control interface 1 (I2C) address select /

Control interface 1 (SPI) Slave Select (SS)

J12

CIF1MISO/

GPIO4

Digital Input / Output

Control interface 1 Master In Slave Out data /

General Purpose pin GPIO4.

The CIFMISO configuration is selectable CMOS or ‘Wired OR’.

The GPIO4 output is selectable CMOS or Open Drain.

F11

CIF1MODE

Digital Input

Control interface 1 mode select input

G13

CIF1SCLK

Digital Input

Control interface 1 clock input

G12

CIF1SDA/

CIF1MOSI

Digital Input / Output

Control interface 1 (I2C) data input and output /

Control interface 1 (SPI) Master Out Slave In data.

The output functions are implemented as an Open Drain circuit.

L12

CIF2SCLK

Digital Input

Control interface 2 clock input

K10

CIF2SDA

Digital Input / Output

Control interface 2 data input and output / acknowledge output.

The output function is implemented as an Open Drain circuit.

CP1C1A

Analogue Output

Charge pump 1 fly-back capacitor 1 pin

CP1C1B

Analogue Output

Charge pump 1 fly-back capacitor 1 pin

CP1C2A

Analogue Output

Charge pump 1 fly-back capacitor 2 pin

CP1C2B

Analogue Output

Charge pump 1 fly-back capacitor 2 pin

CP1VOUT1N

Analogue Output

Charge pump 1 negative output 1 decoupling pin

CP1VOUT1P

Analogue Output

Charge pump 1 positive output 1 decoupling pin

CP1VOUT2N

Analogue Output

Charge pump 1 negative output 2 decoupling pin

WM8281ECS/R Scheda tecnica(PDF) 8 Page - Cirrus Logic

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