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參數(shù)資料
| 型號(hào)： | 74OL6001 |
| 廠商： | QUALITY TECHNOLOGIES CORP |
| 元件分類(lèi)： | 光電耦合器 |
| 英文描述： | HIGH-SPEED LOGIC-TO-LOGIC OPTOCOUPLERS |
| 中文描述： | LOGIC OUTPUT OPTOCOUPLER |
| 文件頁(yè)數(shù)： | 14/15頁(yè) |
| 文件大小： | 617K |
| 代理商： | 74OL6001 |
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3/19/03
Page 14 of 15
2003 Fairchild Semiconductor Corporation
HIGH-SPEED
LOGIC-TO-LOGIC OPTOCOUPLERS
TTL BUFFER
TTL INVERTER
CMOS BUFFER
CMOS INVERTER
74OL6000
74OL6001
74OL6010
74OL6011
LSTTL TO
0.1
μ
F
10
1.1 K
100
μ
F
1 K
1.1 K
1N6263
ALL DIODES
2N4252
2N4252
2N2222
PRSG
100 ns BIT
INTERVAL
1
2
250 FT.
4
8
74
OL
6000
LS04
9
5
LS04
250 FT.
11
10
250 FT.
250 FT.
6
LS04
7
LS04
BUFFER
6001
74
OL
6001
OL
74
6001
OL
74
6001
74
OL
1000 FT.
75
TERMINAION
3
APPLICATION
Local area data communication systems can greately improve their noise immunity by including OPOTOLOGIC gates in the
design.
The Optologic input amplifier offers the feature of very high input impedance that permits their use as bridged line receivers. The
system show above illustrates an optically isolated transmitter and multidrop receiver system. The network uses a 74OL6000 and
buffer (Figure D) to isolate the transmitter and drive the 75
coax cable. This application uses a 1000 ft. aerial suspension 75
CATV coax cable with data taps at 250 ft. intervals. The 74OL6001s function as bridged receivers, and as many as 30 receivers
could be placed along the line with minimal signal degradation. The communication cable is terminated with a single 75
load at
the far end of the line.
Signal quality "Eye Pattern" is shown in Figures A, B and C with a 10MBaud NRZ Psuedo-Random Sequence (PRS). Traces 1-3 in
Figure A describes the transmitter section. Traces 4-7 in Figure B show the output of the four Optologic bridged terminations.
Traces 8-11 in Figure C illustrate "Eye Pattern" as seen at the output of a 74LS04 logic gate. The data quality is well preserved in
that only a 30% Eye closure is seen at the receiver located 1000 ft. from the transmitter.
The data communication system is completely optically isolated from all of the terminal equipments. Power for the transmitter
(V
CCO
) and receiver (V
CCI
) is taken from an isolated power supply and distributed through a drain or messenger wire.
Figure A
Figure B
Figure C
HORIZONTAL = 20 ns/DIV 42-11
VERTICAL = 2 V/DIV
HORIZONTAL = 20 ns/DIV 42-12, 02
VERTICAL = 2 V/DIV
HORIZONTAL = 20 ns/DIV 42-13/03
VERTICAL = 2 V/DIV
Figure D Buffer
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 74OL6010 | HIGH-SPEED LOGIC-TO-LOGIC OPTOCOUPLERS |
| 74OL6011 | HIGH-SPEED LOGIC-TO-LOGIC OPTOCOUPLERS |
| 74V2G125 | DUAL BUS BUFFER (3-STATE) |
| 74V2G125STR | DUAL BUS BUFFER (3-STATE) |
| 74V2G32 | DUAL 2-INPUT OR GATE |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 74OL6001 | 制造商:Fairchild Semiconductor Corporation 功能描述:OPTOCOUPLER LOGIC TO LOGIC |
| 74OL6001.300 | 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:SCHMITT-TRIGGER-OUTPUT OPTOCOUPLER |
| 74OL6001.300W | 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:SCHMITT-TRIGGER-OUTPUT OPTOCOUPLER |
| 74OL6001.3S | 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:SCHMITT-TRIGGER-OUTPUT OPTOCOUPLER |
| 74OL6001.3SD | 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:SCHMITT-TRIGGER-OUTPUT OPTOCOUPLER |
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