wm9713 Wolfson Microelectronics plc, wm9713 Datasheet - Page 28
wm9713
Manufacturer Part Number
wm9713
Description
Ac?97 Audio + Touchpanel Codec
Manufacturer
Wolfson Microelectronics plc
Datasheet
1.WM9713.pdf
(132 pages)
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WM9713L
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The PCM Interface may be configured for Mono mode, where only one channel of ADC data is
output. In this mode the interface should be configured for DSP mode. A short or long frame sync is
supported and the MSB is available on either the 1st (mode B) or 2nd (mode A) rising edge of
VXCLK.
Note that when operating in stereo mode the mono Voice DAC always uses the left channel data as
its input.
Figure 13 PCM Interface Mono Mode (mode A, FSP=0)
Figure 14 PCM Interface Mono Mode (mode B, FSP=1)
PCMADC/
PCMDAC
PCMCLK
PCMADC/
PCMDAC
PCMCLK
PCMFS
PCMFS
MSB
1
1 PCMCLK
MSB
1 PCMCLK
1
2
2
3
Input Word Length (WL)
3
Input Word Length (WL)
n-2 n-1
n-2 n-1
LSB
n
LSB
n
PP Rev 3.2 September 2008
1/fs
1/fs
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