15 dac control 1 (address 12h), 1 dac1-4 noise gate, 2 dac1-4 de-emphasis – Cirrus Logic CS4234 User Manual
Page 62: 3 dac5 de-emphasis, 4 dac5 master volume controlled, Section 6.15.2 dac1-4 de-em, Phasis, Section 6.15.3 dac5, De-emphasis, Cs4234
DS899F1
62
CS4234
6.15 DAC Control 1 (Address 12h)
6.15.1
DAC1-4 Noise Gate
This sets the bit depth at which the Noise Gate feature should engage for the DAC1-4 path.
6.15.2
DAC1-4 De-emphasis
Enables or disables de-emphasis for the DAC1-4 path. See
for details. The CS4234 in-
cludes on-chip digital de-emphasis for 32, 44.1, and 48 kHz base rates. It is not supported for 96 kHz or
for any settings in Double-Speed Mode.
6.15.3
DAC5 De-emphasis
Enables or disables de-emphasis for the DAC5 path. See
for details. The CS4234 in-
cludes on-chip digital de-emphasis for 32, 44.1, and 48 kHz sample rates. It is not supported for 96 kHz
or for any settings in Double-speed Mode.
6.15.4
DAC5 Master Volume Controlled
Selects whether the DAC5 data path is subject to or independent of the master volume control.
7
6
5
4
3
2
1
0
DAC1-4 NG
DAC1-4 DE
DAC5 DE
DAC5 MVC
DAC5 CFG & FLTR[1:0]
DAC1-4 NG[2:0]
Noise Gate is set at: [b]
000
Upper 13 Bits (72 dB)
001
Upper 14 Bits (78 dB)
010
Upper 15 Bits (84 dB)
011
Upper 16 Bits (90 dB)
100
Upper 17 Bits (96 dB)
101
Upper 18 Bits (102 dB)
110
Upper 24 Bits (138 dB)
111
Noise Gate Disabled
DAC1-4 DE
De-emphasis is:
0
Disabled
1
Enabled
DAC5 DE
De-emphasis is:
0
Disabled
1
Enabled
DAC5 MVC
DAC5 volume is:
0
Not subject to the master volume control
1
Subject to the master volume control.