7

Figure 7. Switching Test Circuit.

Figure 8. Test Circuit for Transient Immunity and Typical Waveforms.

VO

0.1µF

RL

A

B

PULSE GEN.

VCM

+

VFF

+5 V

–

VO

VOL

VO

0 V

10%

90%

90%

10%

SWITCH AT A: I = 0 mA

F

SWITCH AT B: I = 1.6 mA

F

VCM

tr

tf

5 V

10 V

IF

1

6

5

4

3

tr, tf = 16 ns

RCC (SEE NOTE 5)

220

Ω

VO

PULSE

GEN.

ZO = 50 Ω

tr = 5 ns

IF MONITOR

IF

0.1µF

RL

CL = 15 pF*

RM

0

tPHL

tPLH

VO

IF

VOL

1.5 V

1.5 V

+5 V

1

3

6

5

4

5 V

90%

10%

90%

10%

(SATURATED

RESPONSE)

(NON-

SATURATED

RESPONSE)

VO

5 V

tf

tr

* INCLUDES PROBE AND

FIXTURE CAPACITANCE

10% DUTY CYCLE

1/f

100 µs