ISL3170E Ver la hoja de datos (PDF) - Renesas Electronics

Número de pieza

componentes Descripción

Fabricante

ISL3170E

±15kV ESD Protected, 3.3V, Full Fail-Safe, Low Power, High Speed or Slew Rate Limited, RS-485/RS-422 Transceivers

Renesas Electronics 

ISL3170E, ISL3171E, ISL3172E, ISL3173E, ISL3174E, ISL3175E, ISL3176E, ISL3177E, ISL3178E

Test Circuits and Waveforms (Continued)

DE

VCC

DI

Z

D

Y

54Ω

CD

+

VOD

-

SIGNAL

GENERATOR

DI

DIFF OUT (Y to Z)

-VOD

3V

0V

+VOD 0V

FIGURE 7A. TEST CIRCUIT

FIGURE 7B. MEASUREMENT POINTS

FIGURE 7. DRIVER DATA RATE

GND

RE

B

A

R RO

15pF

SIGNAL

GENERATOR

A

0V

+1.5V

0V

-1.5V

tPLH

tPHL

VCC

RO

1.5V

1.5V

0V

FIGURE 8A. TEST CIRCUIT

FIGURE 8B. MEASUREMENT POINTS

FIGURE 8. RECEIVER PROPAGATION DELAY

SIGNAL

GENERATOR

RE

GND

B

A R RO

1kΩ

15pF

VCC

SW GND

NOTE 11

RE

1.5V

3V

1.5V

0V

PARAMETER

DE

tHZ

X

tLZ

X

tZH (Note 10)

0

tZL (Note 10)

0

tZH(SHDN) (Note 13)

0

tZL(SHDN) (Note 13)

0

A

+1.5V

-1.5V

+1.5V

-1.5V

+1.5V

-1.5V

SW

GND

VCC

GND

VCC

GND

VCC

tZH, tZH(SHDN)

Note 11

RO

tZL, tZL(SHDN)

Note 11

RO

tHZ

OUTPUT HIGH

1.5V

VOH - 0.25V VOH

0V

tLZ

1.5V

OUTPUT LOW

VCC

VOL + 0.25V VOL

FIGURE 9A. TEST CIRCUIT

FIGURE 9B. MEASUREMENT POINTS

FIGURE 9. RECEIVER ENABLE AND DISABLE TIMES (EXCEPT ISL3171E, ISL3174E, ISL3177E)

FN6307 Rev.6.00

Aug 31, 2017

Page 11 of 21

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