92HD92 Datasheet, PDF (63/306 Pages) Integrated Device Technology – SINGLE CHIP PC AUDIO SYSTEM

92HD92
SINGLE CHIP PC AUDIO SYSTEM, CODEC+SPEAKER AMPLIFIER+CAPLESS HP+LDO
2.29.2.23. BTL High-Pass Filter COEF_SEL Register
This register reset by POR/DAFG/ULR. Writing to NID22h verb 77F will also cause reset
Register Address
Bit
Label
7:3 Reserved
0x25
HPF_COEF_SEL
verb F95/795
2:0 hp_coef_sel
Type Default
Description
RO 0
RESERVED
RW 0x2
Select IIR coefficients for BTL amplifier high pass filter corner
frequency
000 = 100Hz
001 = 200Hz
010 = 300Hz
011 = 400Hz
100 = 500Hz
101 = 750Hz
110 = 1000Hz
111 = 2000Hz
2.29.2.24. Mono Band-Pass Filter COEF_SEL Register
This register reset by POR/DAFG/ULR. Writing to NID22h verb 77F will also cause reset
Register Address
Bit
Label
7
Reserved
6:4 bph_coef_sel
0x26
BPF_COEF_SEL
verb F96/796
3
Reserved
2:0 bpl_coef_sel
Type Default
Description
RO 0
RESERVED
RW 0x3
Select IIR coefficients for MonoOut band-pass filter lower
corner frequency
000 = 63Hz
001 = 80Hz
010 = 100Hz
011 = 120Hz
100 = 150Hz
101 = 200Hz
110 = 315Hz
111 = 400Hz
RO 0
RESERVED
RW 0x2
Select IIR coefficients for MonoOut band-pass filter upper
corner frequency
000 = 150Hz
001 = 200Hz
010 = 250Hz
011 = 315Hz
100 = 400Hz
101 = 500Hz
110 = 630Hz
111 = 800Hz
IDT™ CONFIDENTIAL
63
©2009 INTEGRATED DEVICE TECHNOLOGY, INC.
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92HD92