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WM8746SEDS/R Datasheet(PDF) 25 Page - Wolfson Microelectronics plc

No. de pieza WM8746SEDS/R
Descripción Electrónicos  24-bit, 192kHz 6-Channel DAC with Volume Control
PDF  32 Pages
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Fabricante Electrónico  WOLFSON [Wolfson Microelectronics plc]
Página de inicio  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8746SEDS/R Datasheet(HTML) 25 Page - Wolfson Microelectronics plc

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WM8746
Production Data
w
March 2006, PD Rev 4.0
25
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
7:0
L1A[7:0]
11111111
(0dB)
Attenuation level of left channel DACL1 in 0.5dB steps. See Table 8
0000100
Attenuation
DACL1
8
UPDATE
Not latched
Controls simultaneous update of all Attenuation Latches
0: Store DACL1 in intermediate latch (no change to output)
1: Store DACL1 and update attenuation on all channels.
7:0
R1A[7:0]
11111111
(0dB)
Attenuation level of right channel DACR1 in 0.5dB steps, see Table 8.
0000101
Attenuation
DACR1
8
UPDATE
Not latched
Controls simultaneous update of all Attenuation Latches
0: Store DACR1 in intermediate latch (no change to output)
1: Store DACR1 and update attenuation on all channels.
7:0
L2A[7:0]
11111111
(0dB)
Attenuation level of left channel DACL2 in 0.5dB steps, see Table 8.
0000110
Attenuation
DACL2
8
UPDATE
Not latched
Controls simultaneous update of all Attenuation Latches
0: Store DACL2 in intermediate latch (no change to output)
1: Store DACL2 and update attenuation on all channels.
7:0
R2A[7:0]
11111111
(0dB)
Attenuation level of right channel DACR2 in 0.5dB steps, see Table 8.
0000111
Attenuation
DACR2
8
UPDATE
Not latched
Controls simultaneous update of all Attenuation Latches
0: Store DACR2 in intermediate latch (no change to output)
1: Store DACR2 and update attenuation on all channels.
7:0
MASTA[7:0]
11111111
(0dB)
Attenuation data for all channels in 0.5dB steps, see Table 8.
0001000
Master
Attenuation
(all channels)
8
UPDATE
Not latched
Controls simultaneous update of all Attenuation Latches
0: Store MASTA[7:0] in all intermediate latches (no change to
output)
1: Store DACR0 and update attenuation on all channels
0
2SPD
0
Activates the split rate mode where the front channels run at 192kHz
and the rear four channels run at 96kHz.
0: Normal operation.
1: Split rate operation.
0001001
Extended
interface
control
1
ZCD
0
Controls the operation of the zero crossing detect mechanism which
ensures that the volume is only updated on each channel when the
signal passes through midrail.
0: Enable zero detect.
1: Disable zero detect.
Table 13 Register Map Description



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