HS1-246RH-8 Просмотр технического описания (PDF) - Intersil

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HS1-246RH-8

Radiation Hardened Triple Line Transmitter, Triple Line Receiver, Triple Party-Line Receiver

Intersil 

HS-245RH, HS-246RH, HS-248RH

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 4, 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.

Schematics

TABLE B. OVERALL TRANSMITTER/RECEIVER SWITCHING

CHARACTERISTICS

-55oC TO 125oC

HS-245RH, HS-246RH

HS-248RH

CHARACTERISTICS

MIN

TYP MAX UNITS

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.

14VCC

2.7K 380Ω 2.7K

300Ω

2.0K

12

φ1 φ1

IN OUT

2.0K

34

φ2 φ2

OUT IN

56

φ1 φ1

IN OUT

89

φ2 φ2

OUT IN

T1

T2

10 11

12 13

φ1 φ1 φ2 φ2

IN OUT OUT IN

T3

FIGURE 6. HS-245RH

(R1) OUTPUT

6K

3

4.1K

14VCC

13VCC

6

(R2) OUTPUT

10

(R3) OUTPUT

(R1) +INPUT

2

-INPUT

1

50Ω

2.7K

(R1)

50Ω

GND

7

+INPUT

5

(R2)

12VEE

-INPUT

4

(R2)

+INPUT

9

(R3)

11VEE

-INPUT

8

(R3)

R1

R2

R3

NOTES:

FIGURE 7. HS-246RH, HS-248RH

1. HS-246RH does not have 6K output pull-up resistors.

2. HS-248RH does not have 50Ω input termination resistors.

6

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