Power Driver Integrated Full Digital Audio Amplifier
NTP-8230
Addr 0x2B : PWM_MASK Control 3
Bit
7
6
5
4
3
2
1
0
Name
IRC
AVRCT
PHT
Name
PHT
Description
PWM_MASK Low
Hold Time
Value
b‟000
b‟001
b‟010
b’011
b‟100
b‟101
b‟000
b’001
b‟010
b‟011
b‟100
b‟101
b‟110
b‟111
b’00
Meaning
Ref.
0.5 msec Hold Time
1 msec Hold Time
2 msec Hold Time
4 msec Hold Time (Default)
8 msec Hold Time
16msec Hold Time
4
10 (Default)
20
30
40
50
60
AVRCT
Auto PWM_MASK
Restore Counter
Threshold
Infinity
2 (Default)
4
IRC
Auto PWM_MASK
Restore Interval
Ratio Control
b‟01
Addr 0x2C: PWM_MASK Control 4
Bit
7
6
5
4
3
2
1
0
Name
SHE
POE
X
X
X
HT2
Name
HT2
Description
Value
b‟000
b‟001
b‟010
b’011
b‟100
b‟101
b‟110
b‟0
Meaning
Ref.
Hold Time 2 apply
start point (restore
counter)
100 msec Hold Time
200 msec Hold Time
400 msec Hold Time
600 msec Hold Time (Default)
800 msec Hold Time
1 sec Hold Time
2 sec Hold Time
Disable
POE
SHE
PWM off when
Fault detected and
PWM on when
PWM_MASK
Recover
b’1
Enable (Default)
Second Hold time
Enable
b’0
b‟1
Disable (Default)
Enable
Addr 0x2D: Master Volume Fine Control
Bit
7
6
5
4
3
2
1
0
Name
X
X
X
X
X
MVFC
Name
MVFC
Description
Master volume
fine control
Value
b’000 ~
b‟111
Meaning
0 dB ~ 0.5 dB with 0.0625 dB step
Ref.
Copyright ⓒ NeoFidelity, Inc.
Page 35
Document Number: DS8230 draft ver. 0.1
2011-01-11
ETC [ ETC ]
