WM8734
Production Data
PIN DESCRIPTION - SSOP
PIN
1
NAME
DGND
TYPE
Ground
Supply
DESCRIPTION
Digital GND
2
DBVDD
BCLK
Digital Buffers VDD
3
Digital Input/Output Digital Audio Bit Clock, Pull Down, (see Note 1)
Digital Input
DAC Digital Audio Data Input
Digital Input/Output DAC Sample Rate Left/Right Clock. Pull Down (see Note 1)
Digital Output
ADC Digital Audio Data Output
Digital Input/Output ADC Sample Rate Left/Right Clock, Pull Down (see Note 1)
4
DACDAT
DACLRC
ADCDAT
ADCLRC
LOUT
5
6
7
8
Analogue Output
Analogue Output
Supply
Left Channel Line Output
9
ROUT
Right Channel Line Output
10
11
12
13
14
15
16
AVDD
Analogue VDD
AGND
Ground
Analogue GND
VMID
Analogue Output
Analogue Input
Analogue Input
Digital Input
Mid-rail reference decoupling point
Right Channel Line Input (AC coupled)
Left Channel Line Input (AC coupled)
Control Interface Selection, Pull Up (see Note 1)
RLINEIN
LLINEIN
MODE
CSB
Digital Input
3-Wire MPU Chip Select / 2-Wire MPU interface address selection, active low,
Pull up (see Note 1)
17
18
19
20
SDIN
SCLK
Digital Input/Output 3-Wire MPU Data Input / 2-Wire MPU Data Input
Digital Input
Digital Input
Supply
3-Wire MPU Clock Input / 2-Wire MPU Clock Input
Master Clock Input (MCLK)
MCLK
DCVDD
Digital Core VDD
Note:
1. Pull Up/Down only present when Control Register Interface ACTIVE = 0 to conserve power.
PD Rev 4.1 November 2006
w
4
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
