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WM8774 датащи(PDF) 28 Page - Wolfson Microelectronics plc

номер детали WM8774
подробное описание детали  24 - bit, 192kHz 8 - Channel Input Stereo Codec
PDF  42 Pages
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производитель  WOLFSON [Wolfson Microelectronics plc]
домашняя страница  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8774 датащи(HTML) 28 Page - Wolfson Microelectronics plc

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WM8774
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PP Rev 1.0 June 2002
28
OUTPUT SELECT AND ENABLE CONTROL
Register bits MX controls the output selection. The output select block consists of a summing stage
and an input select switch for each input allowing each signal to be output individually or summed
with other signals and output on the analogue output. The default for the output is DAC playback
only. VOUT may be selected to output DAC playback, AUX, analogue bypass or a sum of these
using the output select controls MX[2:0]. For example, to select sum of DAC and AUX, set MX[2:0] to
110.
The output mixer and EVR can be powered down under control of OUTPD. Setting OUTPD will
power off the mixer and EVR and switch the analogue outputs VOUTL/R to VMIDDAC to maintain a
dc level on the output.
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
2:0
MX[2:0]
001
(DAC playback)
VOUT Output select (see Figure 18)
11100
Output mux
And
Powerdown
control
7
OUTPD
1
Mixer and EVR Powerdown select
0: mixer and EVR enabled
1: mixer and EVR powered
down
MX[2:0] selects the output for VOUT.
Figure 18 MX[2:0] Output Select
SOFTWARE REGISTER RESET
Writing to register 11111 will cause a register reset, resetting all register bits to their default
values.
MX[0]
MX[1]
MX[2]
DAC
AUX
BYPASS
VOUT



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