Playback level control, Figure 23. playback level control block, Table 18. dac playback level control reg – Rainbow Electronics MAX98089 User Manual
Page 95: Table 18. dac playback level control register
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MAX98089
Low-Power, Stereo Audio Codec
with FlexSound Technology
Playback Level Control
The IC includes separate digital level control for the DAI1
and DAI2 playback audio paths. The DAI1 signal path
allows boost when MODE1 = 0 and attenuation in any
mode. The DAI2 signal path allows attenuation only.
Table 18. DAC Playback Level Control Register
Figure 23. Playback Level Control Block Diagram
EQ1EN
EQ2EN
DVEQ1:
0dB TO -15dB
DV1G:
0/6/12/18dB
DV2:
0dB TO -15dB
DCB2
5-BAND
PARAMETRIC
EQ
5-BAND
PARAMETRIC
EQ
DVEQ2:
0dB TO -15dB
MULTI BAND ALC
EXCURSION LIMITER
DV1:
0dB TO -15dB
MODE1
DVFLT
DALEN
MIXDAR
DACL
DAREN
DACR
+
AUDIO/
FILTERS
AUDIO/
VOICE
FILTERS
MIX
MIXDAL
MIX
REGISTER
BIT
NAME
DESCRIPTION
0x2F/0x31
7
DV1M/DV2M
DAI1/DAI2 Mute
0 = Disabled
1 = Enabled
5
DV1G
DAI1 Voice Mode Gain
DV1G only applies when MODE1 = 0.
00 = 0dB
01 = 6dB
10 = 12dB
11 = 18dB
4
3
DV1/DV2
DAI1/DAI2 Attenuation
VALUE
GAIN (dB)
VALUE
GAIN (dB)
2
0x0
0
0x8
-8
0x1
-1
0x9
-9
0x2
-2
0xA
-10
1
0x3
-3
0xB
-11
0x4
-4
0xC
-12
0x5
-5
0xD
-13
0
0x6
-6
0xE
-14
0x7
-7
0xF
-15