參數(shù)資料
型號: PT2259
廠商: Princeton Technology Corporation
英文描述: Volume Controller IC
中文描述: 音量控制IC
文件頁數(shù): 8/21頁
文件大?。?/td> 445K
代理商: PT2259
URL: http://www.princeton.com.tw
Fax: 886-2-29174598
Tel: 886-2-66296288
DATA BYTES DESCRIPTION
FUNCTION BITS
MSB
1
1
1
1
1
0
1
0
0
0
0
0
1
1
0
1
ATTENUATION UNIT BITS
A3
0
0
0
0
0
0
0
0
1
1
MUTE FUNCTION BITS
C1
PT2259 V1.2
- 8 -
June, 2005
Volume Controller IC
PT2259
LSB
A0
B0
A0
B0
A0
B0
0
C0
Function
0
1
1
1
1
1
1
1
1
0
0
1
0
1
1
1
A3
0
A3
0
A3
0
0
0
A2
B2
A2
B2
A2
B2
0
1
A1
B1
A1
B1
A1
B1
0
C1
2-channel, -1dB/step
2-channel, -10db/step
Left channel, -1db/step
Left channel, -10dB/step
Right channel, -1dB/step
Right channel, -10dB/step
Clear register
Mute select
A2/B2
0
0
0
0
1
1
1
1
0
0
A1/B1
0
0
1
1
0
0
1
1
0
0
A0/B0
0
1
0
1
0
1
0
1
0
1
Attenuation (dB)
0/0
-1/-10
-2/-20
-3/-30
-4/-40
-5/-50
-6/-60
-7/-70
-8/
-9/
C0
0
1
0
1
Function
0
0
1
1
Mute OFF
Right channel mute ON
Left channel mute ON
Left and right channel mute ON
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