參數(shù)資料
型號: SN55138FK
廠商: Texas Instruments, Inc.
元件分類: 通用總線功能
英文描述: .047UF/100VDC METAL POLY CAP
中文描述: 翻兩番總線收發(fā)器
文件頁數(shù): 12/13頁
文件大小: 243K
代理商: SN55138FK
SN55138, SN75138
QUADRUPLE BUS TRANSCEIVERS
SLLS079B – SEPTEMBER 1973 – REVISED MAY 1995
12
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
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4 V
2 V
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4 V
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2 V
4 V
0 V
2 V
3 V
E
D
C
B
A
P
250 ft
100 ft
100 ft
or Equivalent
Belden #8795
Telephone Cable
D
1/4 SN55138
1/4 SN55138
1/4 SN55138
C
B
E
1/4 SN55138
100
5 V
100
5 V
A
1/4 SN55138
TYPICAL VOLTAGE WAVEFORMS
50 ft
Figure 22. Party-Line Communication on 500 Feet of Twisted Pair at 1 MHz
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5 V
4 V
0 V
2 V
0 V
2 V
3 V
C
D
B
A
C
or Equivalent
1000 ft RG-53
B
5 V
100
1/4 SN55138
D
5 V
1/4 SN55138
A
100
TYPICAL VOLTAGE WAVEFORMS
5 V
Figure 23. Point-to-Point Communication Over 1000 Feet of Coaxial Cable at 1 MHz
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