Owners manual

System
H3 Datasheet(Revision1.2) Copyright© 2015 Allwinner Technology Co.,Ltd.All Rights Reserved. Page 295
4.21.5.67. 0x1A8 DAC DRC MIN Gain Low Setting Register(Default Value: 0x00002C3F)
Offset: 0x1A8
Register Name: AC_DAC_DRC_MNGLS
Bit
R/W
Default/Hex
Description
15:0
R/W
0x2C3F
The min gain setting which determine by equation MNG/6.0206. The format is
8.24 and must -60dB ≤MNG ≤ -30dB (-40dB)
4.21.5.68. 0x1AC DAC DRC Expander Smooth Time High Coef Register(Default Value: 0x00000000)
Offset: 0x1AC
Register Name: AC_DAC_DRC_EPSHC
Bit
R/W
Default/Hex
Description
11:0
R/W
0x0000
The gain smooth filter release and attack time parameter setting in expander
region, which determine by the equation that RT = 1-exp(-2.2Ts/tr). The
format is 3.24. (30ms)
4.21.5.69. 0x1B0 DAC DRC Expander Smooth Time Low Coef Register(Default Value: 0x0000640C)
Offset: 0x1B0
Register Name: AC_DAC_DRC_EPSLC
Bit
R/W
Default/Hex
Description
15:0
R/W
0x640C
The gain smooth filter release and attack time parameter setting in expander
region, which determine by the equation that RT = 1-exp(-2.2Ts/tr). The
format is 3.24. (30ms)
4.21.5.70. 0x1B8 DAC DRC HPF Gain High Coef Register(Default Value: 0x00000100)
Offset: 0x1B8
Register Name: AC_DAC_DRC_HPFHGAIN
Bit
R/W
Default/Hex
Description
15:11
/
/
/
10:0
R/W
0x0100
The gain of the hpf coefficient setting which format is 3.24.(gain = 1)
4.21.5.71. 0x1BC DAC DRC HPF Gain Low Coef Register(Default Value: 0x00000000)
Offset: 0x1BC
Register Name: AC_DAC_DRC_HPFLGAIN
Bit
R/W
Default/Hex
Description
15:0
R/W
0x0000
The gain of the hpf coefficient setting which format is 3.24.(gain = 1)
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