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WM8770 Datasheet(PDF) 40 Page - Wolfson Microelectronics plc

Part # WM8770
Description  24-bit, 192kHz 8-Channel Codec with Volume Control
PDF  52 Pages
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Manufacturer  WOLFSON [Wolfson Microelectronics plc]
Direct Link  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8770 Datasheet(HTML) 40 Page - Wolfson Microelectronics plc

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WM8770
Production Data
w
PD Rev 4.1 June 2005
40
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
6:0
L4A[6:0]
1111111
(0dB)
Attenuation Data for Left Channel DACL4 in 1dB steps. See Table
11
7
L4ZCEN
0
DACL2 Zero Cross Detect Enable
0: zero cross disabled
1: zero cross enabled
00110
Analogue
Attenuation
DACL4
8
UPDATE
Not latched
Controls simultaneous update of all Attenuation Latches
0: Store DACL4 in intermediate latch (no change to output)
1: Store DACL4 and update attenuation on all channels.
6:0
R4A[6:0]
1111111
(0dB)
Attenuation Data for Left Channel DACL4 in 1dB steps. See Table
11
7
R4ZCEN
0
DACR2 Zero Cross Detect Enable
0: zero cross disabled
1: zero cross enabled
00111
Analogue
Attenuation
DACR4
8
UPDATE
Not latched
Controls simultaneous update of all Attenuation Latches
0: Store DACR4 in intermediate latch (no change to output)
1: Store DACR4 and update attenuation on all channels.
6:0
MASTA[6:0]
1111111
(0dB)
Attenuation Data for all DAC Gains in 1dB steps. See Table 11
7
MZCEN
0
Master Zero Cross Detect Enable
0: zero cross disabled
1: zero cross enabled
01000
Analogue
Master
Attenuation
(all channels)
8
UPDATE
Not latched
Controls simultaneous update of all Attenuation Latches
0: Store gains in intermediate latch (no change to output)
1: Store gains and update attenuation on all channels.
7:0
LDA1[7:0]
11111111
(0dB)
Digital Attenuation Data for Left Channel DACL1 in 0.5dB steps.
See Table 12
01001
Digital
Attenuation
DACL1
8
UPDATE
Not latched
Controls simultaneous Update of all Attenuation Latches
0: Store LDA1 in intermediate latch (no change to output)
1: Store LDA1 and update attenuation on all channels
7:0
RDA1[6:0]
11111111
(0dB)
Digital Attenuation Data for Right Channel DACR1 in 0.5dB steps.
See Table 12
01010
Digital
Attenuation
DACR1
8
UPDATE
Not latched
Controls simultaneous update of all Attenuation Latches
0: Store RDA1 in intermediate latch (no change to output)
1: Store RDA1 and update attenuation on all channels.
7:0
LDA2[7:0]
11111111
(0dB)
Digital Attenuation data for Left channel DACL2 in 0.5dB steps.
See Table 12
01011
Digital
Attenuation
DACL2
8
UPDATE
Not latched
Controls simultaneous update of all Attenuation Latches
0: Store LDA2 in intermediate latch (no change to output)
1: Store LDA2 and update attenuation on all channels.
7:0
RDA2[7:0]
11111111
(0dB)
Digital Attenuation Data for Right Channel DACR2 in 0.5dB steps.
See Table 12
01100
Digital
Attenuation
DACR2
8
UPDATE
Not latched
Controls simultaneous update of all Attenuation Latches
0: Store RDA2 in intermediate latch (no change to output)
1: Store RDA2 and update attenuation on all channels.
7:0
LDA3[7:0]
11111111
(0dB)
Digital Attenuation Data for Left Channel DACL3 in 0.5dB steps.
See Table 12
01101
Digital
Attenuation
DACL3
8
UPDATE
Not latched
Controls simultaneous update of all Attenuation Latches
0: Store LDA3 in intermediate latch (no change to output)
1: Store LDA3 and update attenuation on all channels.



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