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WM8772 Datasheet(Fiches technique) 66 Page - Wolfson Microelectronics plc

Numéro de pièce WM8772
Description  24-bit, 192kHz 6-Channel Codec with Volume Control
Télécharger  73 Pages
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Fabricant  WOLFSON [Wolfson Microelectronics plc]
Site Internet  http://www.wolfsonmicro.com
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WM8772 Datasheet(HTML) 66 Page - Wolfson Microelectronics plc

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WM8772EFT – 32 LEAD TQFP
Production Data
w
PD Rev 4.2 October 2005
66
REGISTER ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
0001100
Interface Control
5
ADCBCP
0
ADCBCLK Polarity (DSP Modes):
0: normal BCLK polarity
1: inverted BCLK polarity
MUTE PIN DECODE
The MUTE pin can either be used an output or an input. When used as an input the MUTE pins
action can controlled by setting the DZFM bit to select the corresponding DAC for applying the MUTE
to. As an output its meaning is selected by the DZFM control bits. By default selecting the MUTE to
represent if DAC1 has received more than 1024 midrail samples will cause the MUTE to be asserted
a softmute on DAC1. Disabling the decode block will cause any logical high on the MUTE pin to
apply a softmute to all DACs.
REGISTER ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
0001100
ADC Control
6
MPD
0
MUTE Pin Decode Disable:
0: MUTE pin decode enable
1: MUTE pin decode disable
DAC TO ADC SYNC
If the DAC and ADC use the same MCLK, and they are operating in the same fs mode setting the
SYNC bit will improve performance by synchronising the internal clock between the two blocks.
Setting this at any other time may or may not improve or degrade the performance of the device.
REGISTER ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
0001100
SYNC Control
7
SYNC
0
SYNC Function:
0: Disable
1: Enable


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