Power Driver Integrated Full Digital Audio Amplifier
NTP-8230
REG 0x7E
CH2 only
Address
(decimal) (hexadecimal)
Address
description
default in hex
CH1 only
Both
90
91
0x5A
0x5B
0x5C
0x5D
0x5E
0x5F
0x60
0x61
0x62
0x63
0x64
0x65
0x66
0x67
0x68
0x69
0x6A
0x6B
x03
x03
x03
x03
x03
x03
x03
x03
x03
x03
x03
x03
x03
x03
x03
x03
x03
x03
Attack_low BQ b0
Attack_low BQ b1
Attack_low BQ b2
Attack_low BQ a1
Attack_low BQ a2
Attack_high BQ b0
Attack_high BQ b1
Attack_high BQ b2
Attack_high BQ a1
Attack_high BQ a2
Release Gain L
0x0318B4A4
0x0418B4A4
0x0318B4A4
0x117BA189
0x10F75628
0x0318B4A4
0x0418B4A4
0x0318B4A4
0x117BA189
0x10F75628
0x107FFF0F
0x107FFF0F
0x11000000
0x11000000
0x107FFB49
0x11000000
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
Release Gain H
THD Gain L
THD Gain H
PowerMeter_Gain
Attack Gain Low
Attack Gain High
Attack Gain Post
0x11000000
0x11000000
CH3 BiQuad Coefficients & Parameters
To program BiQuad filter coefficients and parameters for channel 3, the value of Reg 0x7E should be
“0x04”. Also, five coefficients should be consecutively in incremental address form to program one
BiQuad filter.
Address
(decimal) (hexadecimal)
Address
default in
hex
REG 0x7E
description
0
1
0x00
0x01
0x02
0x03
0x04
0x05
0x06
0x07
0x08
0x09
0x0A
0x0B
0x0C
0x0D
0x0E
0x0F
0x10
0x11
0x12
0x13
0x14
0x04
0x04
0x04
0x04
0x04
0x04
0x04
0x04
0x04
0x04
0x04
0x04
0x04
0x04
0x04
0x04
0x04
0x04
0x04
0x04
0x04
FBQ1 b0
FBQ1 b1
FBQ1 b2
FBQ1 a1
FBQ1 a2
FBQ2 b0
FBQ2 b1
FBQ2 b2
FBQ2 a1
FBQ2 a2
PBQ1 b0
PBQ1 b1
PBQ1 b2
PBQ1 a1
PBQ1 a2
PBQ2 b0
PBQ2 b1
PBQ2 b2
PBQ2 a1
PBQ2 a2
PBQ3 b0
0x11000000
0x20000000
0x20000000
0x20000000
0x20000000
0x11000000
0x20000000
0x20000000
0x20000000
0x20000000
0x11000000
0x20000000
0x20000000
0x20000000
0x20000000
0x11000000
0x20000000
0x20000000
0x20000000
0x20000000
0x11000000
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Copyright ⓒ NeoFidelity, Inc.
Page 45
Document Number: DS8230 draft ver. 0.1
2011-01-11
ETC [ ETC ]
