Customer Information
WM9081-6222-CO28-M-REV2
w
May 2009, Rev 1.0
Customer Information
3
BOARD CONFIGURATION STAND-ALONE
The WM9081 Customer Mini Board can be used a stand-alone module for direct connection to a
processor board via flying leads or dedicated headers. This section will detail important
considerations and provide all information required to do this without risking damage to the device.
CONNECTION DIAGRAM
Figure 1 below shows the connections required to power-up and control the WM9081 Customer Mini
Board.
Please refer to Table 1 for further details on external I/O connections. Table 2 contains a list of all
shorting points.
CLASS D SPE
A
K
ER
CONTROL INTERFACE
AUDIO INTERFACE
SD
IN
SCLK
SPKVDD
IN2
SDO
U
T
/A
D
DR0
IN1
ANALOGUE IN/OUT
SPKOUTN
CS/ADD
R1/4FS
SPKOUTN
SPKOUTP
LRCLK
DACDAT
DBVDD
DCVDD
BCLK
AV
D
D
MCLK
LI
N
E
O
U
T
SPKOUTP
Figure 1 Stand-Alone Board Configuration
