Power Driver Integrated Full Digital Audio Amplifier
NTP-8230
Addr 0x2E~0x31: Master Volume, and Ch1/2/3 volume, respectively
Bit
7
6
5
4
3
2
1
0
Name
VOL
Name
VOL
Description
Volume control
Value
Meaning
Ref.
b‟00000000 See volume control register tables.
~
Reset default is 0 (0x00) ( = − dB)for
Master and 207 (0xCF) for Channel
b‟11111111
Addr 0x32: Soft Volume Control
Bit
7
6
5
4
3
2
1
0
Name
X
X
X
X
X
X
SVI
Name
SVI
Description
Soft volume change b’00
Value
Meaning
Ref.
Medium speed
High speed
Low speed
b‟01
b‟10
b‟11
soft volume change disable
Addr 0x33: Auto-mute Control for CH1 & CH2
Bit
Name
7
X
6
5
II
4
3
AT
2
1
0
EAMC
Name
AT
Description
Auto-mute
detection threshold
Value
b’0000
~ b‟1111
b’00
Meaning
Ref.
Unsigned integer between 0 and 15
II
Auto-mute
5 msec
response time
b‟01
50 msec
b‟10
500 msec
b‟11
2 sec
EAMC
Effect of Auto-mute b’0
condition
Auto mute disable(No-Effect)
Continue switching if auto-mute
b‟1
Addr 0x34: Auto-mute Control for CH3
Bit
Name
7
X
6
5
II
4
3
AT
2
1
0
EAMC
Name
AT
Description
Auto-mute
detection threshold
Value
b’0000
~ b‟1111
b’00
Meaning
Ref.
Unsigned integer between 0 and 15
II
Auto-mute
5 msec
response time
b‟01
50 msec
b‟10
500 msec
b‟11
2 sec
EAMC
Effect of Auto-mute b’0
condition
Auto mute disable(No-Effect)
Continue switching if auto-mute
b‟1
Copyright ⓒ NeoFidelity, Inc.
Page 36
Document Number: DS8230 draft ver. 0.1
2011-01-11
ETC [ ETC ]
