參數(shù)資料
型號(hào): NJW1109V
廠商: New Japan Radio Co., Ltd.
元件分類: 音頻放大器
英文描述: Headphone Amplifier with Electronic Volume
中文描述: 耳機(jī)放大器音量與電子
文件頁數(shù): 11/14頁
文件大小: 180K
代理商: NJW1109V
NJW1109
– 11 –
I
DEFINITION OF I
2
C REGISTER
G
I
2
C BUS FORMAT
MSB LSB MSB LSB MSB LSB
S
Slave Address
A
Select Address
A
Data
A
P
1bit 8bit 1bit 8bit 1bit 8bit 1bit 1bit
S: Starting Term
A: Acknowledge Bit
P: Ending Term
G
SLAVE ADDRESS
MSB LSB
1
0
0
0
0
1
0
0
0
0
G
SELECT ADDRESS
The auto-increment function cycles the select address as follows.
00H
01H
00H
0
1
0
0
0
0
BIT
Select
Address
D7
D6
D5
D4
D3
D2
D1
D0
00H
VOL
01H
CHS
BAL
Don’t Care
!
CONTROL REGISTER DEFAULT VALUE
Control register default value is all “0”.
BIT
Select
Address
D7
D6
D5
D4
D3
D2
D1
D0
00H
0
0
0
0
0
0
0
0
01H
0
0
0
0
0
0
0
0
!
CONTROL COMMAND TABLE
a) Master Volume
BIT
Select
Address
D7
D6
D5
D4
D3
D2
D1
D0
00H
VOL
VOL : Master Volume
Attenuation level : +20 to –80dB(0.5dB/step), MUTE
b) Balance
BIT
Select
Address
D7
D6
D5
D4
D3
D2
D1
D0
01H
CHS
BAL
Don’t Care
CHS : Balance channel select
“0” : Ach “Bch is attenuated”
BAL : Ach and Bch Ach and Bch Balance
Balance Level : 0 to –30dB (1dB/Step) , MUTE
“1” : Bch “Ach is attenuated”
80H (ADR = Low)
84H (ADR = High)
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