wm8595 Wolfson Microelectronics plc, wm8595 Datasheet - Page 39

• Manufacturer Part Number: wm8595
• Description: 24-bit 192khz 2vrms Multi-channel Codec
• Manufacturer: Wolfson Microelectronics plc

Production Data
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CHANNEL SWAP AND INVERSION
The WM8595 ADC input channels can be inverted and swapped in a number of ways to provide
maximum flexibility of input path to the ADC. The default configuration provides stereo output data
with the left and right channel data in the left and right channels. It is possible to swap the left and
right channels, invert them independently, or select the same data from both channels.
HIGH PASS FILTER
The WM8595 includes a high pass filter to remove DC offsets. The high pass filter response is
shown on page 77. It is possible to disable the high pass filter by writing to ADC_HPD.
Table 30 ADC Channel Swap Control
Table 31 High Pass Filter Disable Control
ADC_CTRL1
ADC_CTRL1
REGISTER
REGISTER
ADDRESS
ADDRESS
R13
0Dh
R13
0Dh
11:10
BIT
BIT
12
7
8
9
ADC_HPD
LRSWAP
SEL[1:0]
ADCR_
LABEL
LABEL
ADCL_
DATA_
ADC_
ADC_
INV
INV
DEFAULT
DEFAULT
00
0
0
0
0
ADC Left/Right Swap
0 = Normal
1 = Swap left channel data into right channel
and vice-versa
ADCL and ADCR Output Signal Inversion
0 = Output not inverted
1 = Output inverted
ADC Data Output Select
00 = left data from ADCL, right data from
ADCR
01 = left data from ADCL, right data from
ADCL
10 = left data from ADCR, right data from
ADCR
11 = left data from ADCR, right data from
ADCL
ADC High Pass Filter Disable
0 = High pass filter enabled
1 = High pass filter disabled
DESCRIPTION
DESCRIPTION
PD, Rev 4.1, April 2010
WM8595
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