ISL3179EIBZ datasheet(9/18 Pages) INTERSIL

Part #	ISL3179EIBZ

Description	High ESD Protected, 125°C, 40Mbps, 3.3V, Full Fail-Safe, RS-485/RS-422 Transceivers

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Manufacturer	INTERSIL [Intersil Corporation]

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9 / 18 page

ISL3179E, ISL3180E

9

FN6365.5

August 25, 2015

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FIGURE 8A. TEST CIRCUIT

FIGURE 8B. MEASUREMENT POINTS

FIGURE 8. RECEIVER PROPAGATION DELAY

FIGURE 9A. TEST CIRCUIT

FIGURE 9B. MEASUREMENT POINTS

FIGURE 9. RECEIVER ENABLE AND DISABLE TIMES

Test Circuits and Waveforms (Continued)

SIGNAL

GENERATOR

R

RO

RE

A

B

+1.5V

15pF

RO

+3V

0V

tPLH

1.5V

VCC

0V

1.7V

tPHL

A

1kΩ

VCC

GND

SW

PARAMETER

DE

A

SW

tHZ

0

+1.5V

GND

tLZ

0

-1.5V

VCC

tZH (Note 11)0

+1.5V

GND

tZL (Note 11)

0

-1.5V

VCC

tZH(SHDN) (Note 14)0

+1.5V

GND

tZL(SHDN) (Note 14)

0

-1.5V

VCC

SIGNAL

GENERATOR

R

RO

RE

A

B

GND

15pF

RO

3V

0V

1.5V

VOH

0V

1.5V

VOH - 0.5V

tHZ

RO

VCC

VOL

1.5V

VOL + 0.5V

tLZ

RE

OUTPUT HIGH

OUTPUT LOW

tZL, tZL(SHDN)

tZH, tZH(SHDN)

(Note 12)

Typical Performance Curves V

CC = 3.3V, TA = +25°C; Unless Otherwise Specified

FIGURE 10. DRIVER OUTPUT CURRENT vs DIFFERENTIAL OUTPUT

VOLTAGE

FIGURE 11. DRIVER DIFFERENTIAL OUTPUT VOLTAGE vs

TEMPERATURE

0

10

20

30

40

50

60

70

80

90

0

0.5

1.0

1.5

2.0

2.5

3.0

DIFFERENTIAL OUTPUT VOLTAGE (V)

+25°C

+85°C

RD = 54Ω

RD = 100Ω

+125°C

3.3

RD = 33Ω

1.90

1.95

2.00

2.05

2.10

2.15

2.20

2.25

2.30

2.35

2.40

-40

-15

10

35

60

85

110

TEMPERATURE (°C)

RD = 54Ω

RD = 100Ω

125

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