Power Driver Integrated Full Digital Audio Amplifier
NTP-8230
Addr 0x51 : PWM Phase Control
Bit
7
6
5
4
3
2
1
0
Name
PPC
PFC
Name
PFC
Description
PWM phase Fine
Control
PWM Phase
Control
Value
Meaning
Ref.
In
ended mode,
fixed as PFC
= b‟0000, and
PPC = b‟ 0110
(90°)
b’0000 ~ PPC level 1.66° step
b‟1001
b‟0000 ~ b‟0000 (0°) ~ b‟1100(180°), width:15°
b‟1100
default : b’0110
Single
PPC
Addr 0x52 : PWM Soft start
Bit
7
6
5
4
3
2
1
0
Name
PSE
SRT
Name
SRT
Description
Step Repeat Time
Value
b‟000000 The repeat time of each step
(default : b’0010000 – means
b‟111111 repeat 17 times)
Meaning
Ref.
~
PSE
BTL PWM soft start b‟0
Enable
Disable
In Single Ended
Mode, should be
disabled
b’1
Enable (Default)
Addr 0x53: Power Meter Control
Bit
7
6
5
4
3
2
1
0
Name
X
X
X
PDPOS
X
X
PDCH
Name
Description
Value
Meaning
Ref.
PDCH
Power meter
Detect Channel
00
01
10
11
0
L+R (default)
L channel
R channel
reserved
PDPOS
Power meter
After volume (default)
Detect Position
1
Before volume
Addr 0x54: Power Meter (read-only)
Bit
Name
7
0
6
0
5
0
4
0
3
0
2
0
1
0
0
0
Addr 0x55: Modulation Index & NS-Type Control
Bit
7
6
5
4
3
2
1
0
Name
X
M0
NT
MD3
MD12
Name
MD12
Description
Modulation index
Value
b’11
Meaning
Minimum pulse width = 2
Ref.
Copyright ⓒ NeoFidelity, Inc.
Page 40
Document Number: DS8230 draft ver. 0.1
2011-01-11
ETC [ ETC ]
