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參數(shù)資料
| 型號： | HS1-248RH-8 |
| 廠商： | HARRIS SEMICONDUCTOR |
| 元件分類： | 通用總線功能 |
| 英文描述： | Radiation Hardened Triple Line(party-Line) Transmitter |
| 中文描述： | TRIPLE LINE RECEIVER, CDIP14 |
| 文件頁數(shù)： | 6/8頁 |
| 文件大?。?/td> | 110K |
| 代理商： | HS1-248RH-8 |
6
the grounded input of the transmitter, and is less than 25V
negative with respect to the transmitter VCC. The current
mode system is totally unaffected by ground differential
noise of +2V at frequencies as high as 1MHz.
Propagation Delay
The worst case propagation delay of a transmitter and
receiver, connected as shown in Figure 6, can be
determined by adding the maximum delay shown on the
data sheet for the transmitter and receiver. These overall
switching characteristics are shown in Table B. For the entire
system, however, the propagation delay of the transmission
line must also be considered. This delay, of course, depends
on the length of the line and the characteristics of the line,
but in general, delays of between 1.5ns and 3.0ns per foot
can be expected.
TABLE B. OVERALL TRANSMITTER/RECEIVER SWITCHING
CHARACTERISTICS
CHARACTERISTICS
-55
o
C TO 125
o
C
HS-245RH, HS-246RH
HS-248RH
UNITS
MIN
TYP
MAX
Propagation Delay
TPLH
-
18
40
ns
Propagation Delay
TPHL
-
18
40
ns
Duty Cycle Distortion
TPLH - TPHL
-
2
15
ns
NOTE:
VCC = +5V, VEE = -5V.
Schematics
FIGURE 6. HS-245RH
FIGURE 7. HS-246RH, HS-248RH
NOTES:
1. HS-246RH does not have 6K output pull-up resistors.
2. HS-248RH does not have 50
input termination resistors.
φ
1
IN
T1
2.7K
2.7K
2.0K
2.0K
380
1
2
3
4
300
T2
5
φ
1
IN
6
φ
1
OUT
8
9
φ
2
OUT
T3
10
11
12
13
14VCC
φ
1
OUT
φ
2
IN
φ
2
OUT
φ
2
IN
φ
1
IN
φ
1
OUT
φ
2
IN
φ
2
OUT
R1
-INPUT
(R1) OUTPUT
3
(R1) +INPUT
2
7
2.7K
4.1K
6K
1
-INPUT
6
(R2)
+INPUT
5
14VCC
4
(R2)
-INPUT
10
+INPUT
9
13VCC
8
(R3)
(R3) OUTPUT
(R2) OUTPUT
(R3)
12VEE
11VEE
R2
R3
GND
50
(R1)
50
HS-245RH, HS-246RH, HS-248RH
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