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WM8991 Datasheet(PDF) 102 Page - Wolfson Microelectronics plc

Part # WM8991
Description  Mobile Multimedia CODEC with Dual-Mode Class AB/D Speaker Driver
PDF  174 Pages
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Manufacturer  WOLFSON [Wolfson Microelectronics plc]
Direct Link  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8991 Datasheet(HTML) 102 Page - Wolfson Microelectronics plc

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WM8991
Pre-Production
w
PP, May 2008, Rev 3.1
102
Figure 53 Master Mode with ADCLRC as GPIO
Figure 54 Slave Mode with ADCLRC as GPIO
OPERATION WITH ALTERNATIVE DAC INTERFACE
To allow data to be input to the WM8991 DACs from two separate sources, the GPIO[5:3] pins can
be configured as an alternative DAC interface (BCLK2, DACLRC2, DACDAT2) as shown in Figure 57
to Figure 60.
Figure 55 Interface 2 = Master
Figure 56 Interface 2 = Slave
WM8991
Processor
#1
ADCDAT
ADCLRC
DACDAT
DACLRC
BCLK
Processor
#2
DACLRC2
DACDAT2
BCLK2
AIF_MSTR1=1
AIF_MSTR2=0
/N
/N
Figure 57 Interface 1 = Master, Interface 2 =
Master
Figure 58 Interface 1 = Master, Interface 2 =
Slave



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