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參數(shù)資料
| 型號(hào)： | PT2258-S |
| 廠商： | Princeton Technology Corporation |
| 英文描述： | 6-Channel Electronic Volume Controller IC |
| 中文描述： | 6通道電子音量控制IC |
| 文件頁(yè)數(shù)： | 7/15頁(yè) |
| 文件大?。?/td> | 180K |
| 代理商： | PT2258-S |
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6-Channel Electronic Volume Controller IC
Preliminary
PT2258
Princeton Technology Corp.
Tel : 886-2-29162151
Fax: 886-2-29174598
URL:
http://www.princeton.com.tw
PT2258 pre1.0
7
Updated July 2000
Interface Protocol
The interface protocol consists of the following:
· A Start Condition
· A Chip Address Byte including the PT2258 address. The 8
th
Bit of the Byte must be “0”. PT2258
must always acknowledge the end of each transmitted byte.
· A Data Sequence (N-Bytes + Acknowledge)
· A Stop Condition
Please refer to the diagram below:
Software Specification
PT2258 ADDRESS CODE
PT2258 Address Code depends on the state of CODE1 (Pin No. 17) and CODE2 (Pin No.4). If CODE1
or CODE2 is connected to Vcc, then CODE1 or CODE2 is set to “1”. If CODE1 or CODE2 is con-
nected to the Ground, it is set to “0”. Please refer to the information below:
Condition 1: When CODE1=”1” and CODE2=”1”:
PT2258 Address
CODE1
1
CODE2
1
Then, the PT2258 Address Code is (8CH):
1
0
0
0
1
1
0
0
MSB
LSB
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