CS4244 Datasheet, PDF (52/63 Pages) Cirrus Logic – 4 In/4 Out Audio CODEC with PCM and TDM Interfaces

6.9 DAC Control 1 (Address 12h)
7
6
5
4
DAC1-4 NG
DAC1-4 DE
3
Reserved
2
Reserved
CS4244
1
0
Reserved
6.9.1
DAC1-4 Noise Gate
This sets the bit depth at which the Noise Gate feature should engage for the DAC1-4 path.
DAC1-4 NG[2:0]
000
001
010
011
100
101
110
111
Noise Gate is set at: [b]
Upper 13 Bits (72 dB)
Upper 14 Bits (78 dB)
Upper 15 Bits (84 dB)
Upper 16 Bits (90 dB)
Upper 17 Bits (96 dB)
Upper 18 Bits (102 dB)
Upper 24 Bits (138 dB)
Noise Gate Disabled
6.9.2
DAC1-4 De-emphasis
Enables or disables de-emphasis for the DAC1-4 path. See Section 4.6.3.1 for details. The CS4244 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.
DAC1-4 DE
0
1
De-emphasis is:
Disabled
Enabled
6.10 DAC Control 2 (Address 13h)
7
6
5
Reserved[2:0]
4
Reserved
6.10.1 Inv. DACx
Inverts the polarity of the DACx signal.
INV. DACx
0
1
DACx Polarity is:
Not Inverted
Inverted
3
INV. DAC4
2
INV. DAC3
1
INV. DAC2
0
INV. DAC1
DS900F2
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