Owners manual

System
H3 Datasheet(Revision1.2) Copyright© 2015 Allwinner Technology Co.,Ltd.All Rights Reserved. Page 292
4.21.5.52. 0x16C DAC DRC Expander Theshold High Setting Register(Default Value: 0x00000BA0)
Offset: 0x16C
Register Name: AC_DAC_DRC_HET
Bit
R/W
Default/Hex
Description
15:0
R/W
0x0BA0
The expander threshold setting, which set by the equation that ETin =
-ET/6.0206, The format is 8.24. (-70dB)
4.21.5.53. 0x170 DAC DRC Expander Theshold Low Setting Register(Default Value: 0x00007291)
Offset: 0x170
Register Name: AC_DAC_DRC_LET
Bit
R/W
Default/Hex
Description
15:0
R/W
0x7291
The expander threshold setting, which set by the equation that ETin =
-ET/6.0206, The format is 8.24. (-70dB)
4.21.5.54. 0x174 DAC DRC Expander Slope High Setting Register(Default Value: 0x00000500)
Offset: 0x174
Register Name: AC_DAC_DRC_HKE
Bit
R/W
Default/Hex
Description
15:14
/
/
/
13:0
R/W
0x0500
The slope of the expander which determine by the equation that Ke = 1/R,
there, R is the ratio of the expander, which always is interger and the ke must
larger than 50. The format is 8.24. (1:5)
4.21.5.55. 0x178 DAC DRC Expander Slope Low Setting Register(Default Value: 0x00000000)
Offset: 0x178
Register Name: AC_DAC_DRC_LKE
Bit
R/W
Default/Hex
Description
15:0
R/W
0x0000
The slope of the expander which determine by the equation that Ke = 1/R,
there, R is the ratio of the expander, which always is interger and the ke must
larger than 50. The format is 8.24. (1:5)
4.21.5.56. 0x17C DAC DRC Expander High Output at Expander Threshold(Default Value: 0x0000F45F)
Offset: 0x17C
Register Name: AC_DAC_DRC_HOPE
Bit
R/W
Default/Hex
Description
15:0
R/W
0xF45F
The output of the expander which determine by equation OPE/6.0206. The
format is 8.24 (-70dB)
confidential