92HD87 Datasheet, PDF (72/204 Pages) Integrated Device Technology – SINGLE CHIP PC AUDIO SYSTEM

92HD87
SINGLE CHIP PC AUDIO SYSTEM, CODEC+STEREO SPEAKER AMPLIFIER+CAPLESS HP+LDO
Field Name
MaxVol
Bits
R/W
Default
Reset
4:0
RW
0Fh
POR
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
8.3.29. AFG (NID = 01h): AnaCapless
Reg Byte 4 (Bits 31:24) Byte 3 (Bits 23:16) Byte 2 (Bits 15:8)
Set
7FAh
7F9h
Get
FF800h
Byte 1 (Bits 7:0)
7F8h
Field Name
Rsvd
VRegSCDet
Bits
R/W
Default
Reset
31:26
R
00h
N/A (Hard-coded)
Reserved.
25
R
0h
POR
Capless regulator short circuit detect indicator.
IDT CONFIDENTIAL
72
©2009 INTEGRATED DEVICE TECHNOLOGY, INC.
V 0.995 01/11
92HD87