92hd81 Integrated Device Technology, 92hd81 Datasheet - Page 82

• Manufacturer Part Number: 92hd81
• Description: Single Chip Pc Audio System
• Manufacturer: Integrated Device Technology

SINGLE CHIP PC AUDIO SYSTEM, CODEC+SPEAKER AMPLIFIER+CAPLESS HP+LDO
92HD81
SINGLE CHIP PC AUDIO SYSTEM, CODEC+SPEAKER AMPLIFIER+CAPLESS HP+LDO
Field Name
Rsvd1
MaxVol
Reg
Get
Set
7.4.29. AFG (NID = 01h): AnaCapless
Byte 4 (Bits 31:24)
Bits
6:5
Reserved.
4:0
Gain setting for the BTL amplifier (temperature sensing logic will decrement
from here):
00000 = -26.25dB:
00001 = -19.80dB
00010 = -15.80dB
00011 = -12.85dB
00100 = -10.40dB
00101 = -8.27dB
00110 = -6.35dB
00111 = -4.60dB
01000 = -2.90dB
01001 = -1.25dB
01010 = 0.35dB
01011 = 1.98dB
01100 = 3.63dB
01101 = 5.35dB
01110 = 7.19dB
01111 = 9.18dB
10000 = 9.95dB
10001 = 10.75dB
10010 = 11.58dB
10011 = 12.48dB
10100 = 13.43dB
10101 = 14.46dB
10110 = 15.57dB
10111 = 16.79dB
11000-11111 = Not valid
Byte 3 (Bits 23:16)
7FAh
R/W
R
RW
FF800h
Default
0h
17h
82
Byte 2 (Bits 15:8)
7F9h
Reset
N/A (Hard-coded)
POR
92HD81
Byte 1 (Bits 7:0)
7F8h
PC AUDIO
V 0.97 01/09