WM8522 Wolfson Microelectronics plc, WM8522 Datasheet - Page 31

• Manufacturer Part Number: WM8522
• Description: 24-bit, 192khz 6-channel Dac With 1.7vrms Line Driver
• Manufacturer: Wolfson Microelectronics plc

Production Data
REGISTER MAP DESCRIPTION
w
DAC DEEMPH
DAC Phase
Attenuation
Attenuation
REGISTER
ADDRESS
DACR1
DACL1
Digital
Digital
(00h)
(01h)
(02h)
(03h)
R0
R1
R2
R3
BIT
7:0
7:0
8:5
1:0
0
1
2
3
4
8
8
DEEMPALL
RDA1[6:0]
MUTEALL
LDA1[7:0]
UPDATE
UPDATE
FMT[1:0]
PDWN
LABEL
PL[3:0]
ATC
IZD
Not latched
Not latched
DEFAULT
11111111
11111111
(0dB)
(0dB)
1001
00
0
0
0
0
0
Digital Attenuation data for Left channel DACL1 in 0.5dB steps. See
Table 16
Controls simultaneous update of all Attenuation Latches
Digital Attenuation data for Right channel DACR1 in 0.5dB steps.
See Table 16.
Controls simultaneous update of all Attenuation Latches
Soft Mute Select:
DEEMPH Select:
Power Down all DAC’s Select:
Attenuator Control Mode:
IZD Enable
PL[3:0]
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
1011
1100
1101
1110
1111
Interface Format Select:
0 : Normal operation
1: Soft mute all channels
0: All DACs enabled
1: All DACs disabled
0: Store LDA1 in intermediate latch (no change to output)
1: Store LDA1 and update attenuation on all channels
0: Right channels use right attenuations
1: Right channels use left attenuations
00 : Right justified mode
01: Left justified mode
10: I
11: DSP modes A or B
0 : Normal operation
1: De-emphasis all channels
0 : Disable infinite zero mute
1: Enable infinite zero mute
0: Store RDA1 in intermediate latch (no change to output)
1: Store RDA1 and update attenuation on all channels.
2
S mode
Left Output
Mute
Left
Right
(L+R)/2
Mute
Left
Right
(L+R)/2
Mute
Left
Right
(L+R)/2
Mute
Left
Right
(L+R)/2
DESCRIPTION
Mute
Mute
Left
Left
Right Output
Mute
Mute
Left
Left
Right
Right
Right
Right
(L+R)/2
(L+R)/2
(L+R)/2
(L+R)/2
PD, Rev 4.1, July 2009
WM8522
31