wm8593seft-v Wolfson Microelectronics plc, wm8593seft-v Datasheet - Page 33

• Manufacturer Part Number: wm8593seft-v
• Description: 24-bit 192khz 2vrms Multi-channel Codec
• Manufacturer: Wolfson Microelectronics plc

Production Data
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DIGITAL MONOMIX CONTROL
Each DAC can be independently set to output a range of mono and stereo options. Each DAC output
channel can output left channel data, right channel data or a mix of left and right channel data.
DE-EMPHASIS
A digital de-emphasis filter may be applied to the DAC outputs when the sampling frequency is
44.1kHz. The de-emphasis filter for each DAC can be applied independently. The de-emphasis filter
responses and error can be seen in Figure 70 De-Emphasis Frequency Response (32kHz) and
Figure 71 De-Emphasis Error (32kHz).
Note: De-emphasis is not available when MCLK=192fs.
SIMULATANEOUS DAC1 AND DAC2 CONTROL
If the same settings are required to both DAC1 and DAC2, it is possible to have the register settings
of DAC2 copy the register settings made to DAC1. To use this feature, the user must ensure that
DAC2_COPY_DAC1 is set before writes are made to DAC1. Any writes then made to R2-6 are
automatically made to R7-11.
Example (When DAC2_COPY_DAC1=1):
REGISTER WRITE
R2 = 0x0001
R3 = 0x0023
R4 = 0x0045
R5 = 0x0067
R6 = 0x0089
Table 19 Digital Monomix Control
Table 20 De-emphasis Control
Table 21 DAC2 Configuration Control
DAC1_CTRL1
DAC2_CTRL1
DAC1_CTRL1
DAC2_CTRL1
REGISTER
REGISTER
ADDRESS
REGISTER
ADDRESS
ADDRESS
ENABLE
R12
0Bh
02h
07h
02h
07h
R2
R7
R2
R7
11:10
11:10
BIT
BIT
BIT
1
6
6
_DEEMPH
_DEEMPH
DAC1_OP
_MUX[1:0]
DAC2_OP
_MUX[1:0]
COPY_
LABEL
DAC2_
LABEL
LABEL
DAC1
DAC1
DAC2
ACTUAL REGISTER SETTING
R2 = 0x0001 & R7 = 0x0001
R3 = 0x0023 & R8 = 0x0023
R4 = 0x0045 & R9 = 0x0045
R5 = 0x0067 & R10 = 0x0067
R6 = 0x0089 & R11 = 0x0089
DEFAULT
DEFAULT
DEFAULT
00
00
0
0
0
DAC1 Digital Monomix
00 = Stereo (Normal Operation)
01 = Mono (Left data to DAC1R)
10 = Mono (Right data to DAC1L)
11 = Digital Monomix, (L+R)/2
DAC2 Digital Monomix
00 = Stereo (Normal Operation)
01 = Mono (Left data to DAC2R)
10 = Mono (Right data to DAC2L)
11 = Digital Monomix, (L+R)/2
DAC1 De-emphasis
0 = No de-emphasis
1 = Apply 44.1kHz de-emphasis
DAC2 De-emphasis
0 = No de-emphasis
1 = Apply 44.1kHz de-emphasis
DAC2 Configuration Control
0 = DAC2 settings independent of DAC1
1 = DAC2 settings are the same as DAC1
DESCRIPTION
DESCRIPTION
DESCRIPTION
PD Rev 4.0 April 2008
WM8593
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