WM8771
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The DAC output buffers can be powered down under control of OUTPD[3:0]. Each stereo channel
may be powered down separately. Setting OUTPD[3:0] will power off the output buffer and switch the
analogue outputs VOUTL/R to VMIDDAC to maintain a dc level on the output.
REGISTER
ADDRESS
BIT
8:7
LABEL
DEFAULT
11
DESCRIPTION
11100
OUTPD[1:0]
DAC Output Powerdown select
0: output buffer enabled
Output
Powerdown
control
1: output buffer powered
down
REGISTER
ADDRESS
BIT
8:7
LABEL
DEFAULT
11
DESCRIPTION
11101
OUTPD[3:2]
DAC Output Powerdown select
0: output buffer enabled
Output
Powerdown
control
1: output buffer powered
down
SOFTWARE REGISTER RESET
Writing to register 11111 will cause a register reset, resetting all register bits to their default
values.
PP Rev 2.0 December 2001
32
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WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
