WM8768_10 WOLFSON [Wolfson Microelectronics plc], WM8768_10 Datasheet - Page 32

• Manufacturer Part Number: WM8768_10
• Description: 24-bit, 192kHz 8-Channel DAC
• Manufacturer: WOLFSON [Wolfson Microelectronics plc]

WM8768
Note:
When MCLK is removed, digital volume settings are re-set to default (0dB). When MCLK is re-applied, the user
must write the desired volume level to the volume control registers.
REGISTER MAP
The complete register map is shown below. The detailed description can be found in the relevant text of the device description. The
WM8768 can be configured using the Control Interface. All unused bits should be set to ‘0’.
w
R0(00h)
R1(01h)
R2(02h)
R3(03h)
R4(04h)
R5(05h)
R6(06h)
R7(07h)
R8(08h)
R9(09h)
R10(0Ah)
R12(0Ch)
R13(0Dh)
R14(0Eh)
R15(0Fh)
R31(1Fh)
REGISTER
B15 B14 B13
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
B12
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
Table 16 Digital Volume Control Attenuation Levels
SOFTWARE REGISTER RESET
Writing to register 11111 will cause a register reset, resetting all register bits to their default values.
This reset will last either 2*MCLK periods or until another write is made to the serial interface.
B11
0
0
0
0
1
1
1
1
0
0
0
1
1
1
1
1
B10
0
0
1
1
0
0
1
1
0
0
1
0
0
1
1
1
L/RDAX[7:0]
FE(hex)
00(hex)
01(hex)
FF(hex)
B9
0
1
0
1
0
1
0
1
0
1
0
0
1
0
1
1
:
:
:
UPDATE
UPDATE
UPDATE
UPDATE
UPDATE
UPDATE
UPDATE
UPDATE
UPDATE
B8
0
0
DACRATE[8:6]
PHASE[8:6]
DEEMP[8:6]
B7
0
0
PL[8:5]
ATTENUATION LEVEL
B6
MPD
0
-∞ dB (mute)
-127.5dB
-0.5dB
DACMS
0dB
B5
MPD
DACIWL[5:4]
0
:
:
:
DMUTE[5:3]
PWRDN
DEEMP
RESET
IZD
B4
ALL
MASTDA[7:0]
0
4
RDA4[7:0]
RDA1[7:0]
RDA2[7:0]
RDA3[7:0]
LDA4[7:0]
LDA1[7:0]
LDA2[7:0]
LDA3[7:0]
DACBCP
PHASE4
ATC
B3
0
DACD[3:1]
DMUTE
DACLRP
B2
PDWN
All DAC
0
DZFM[2:1]
4
DZFM4
B1
DEEMP
ALL DAC
0
DACFMT[1:0]
PD Rev 4.3 July 2010
DACD4
B0
All DAC
MUTE
ZCD
Production Data
0
0
011111111
011111111
100100000
000000000
011111111
011111111
011111111
011111111
011111111
000000000
010000000
000000000
011111111
011111111
000000000
000000000
DEFAULT
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