6 − 114

Figure 7. Typical propagation delay vs.

temperature.

Figure 10. Test circuit for common mode transient immunity and typical waveforms.

VCC = 3.3 V

IF = 7.5 mA

150

120

-60

-20

20

60

100

TA – TEMPERATURE – °C

90

80

40

0

-40

0

60

30

tPHL , RL = 350 Ω

tPLH , RL = 350 Ω

Figure 8. Typical pulse width distortion vs.

temperature.

VCC = 3.3 V

IF = 7.5 mA

50

40

-20

20

60

100

TA – TEMPERATURE – °C

30

80

40

0

-40

20

RL = 350 Ω

10

-60

0

OUTPUT VO

MONITORING

NODE

1.5 V

tEHL

tELH

VE

INPUT

VO

OUTPUT

3.0 V

1.5 V

+3.3 V

7

5

6

8

2

3

4

1

PULSE GEN.

ZO = 50 Ω

tf = tr = 5 ns

IF

RL

VCC

0.1 F

BYPASS

*CL

*CL IS APPROXIMATELY 15 pF WHICH INCLUDES

PROBE AND STRAY WIRING CAPACITANCE.

GND

7.5 mA

INPUT VE

MONITORING NODE

+3.3 V

7

5

6

8

2

3

4

1

VCC

0.1 F

BYPASS

GND

OUTPUT VO

MONITORING

NODE

PULSE

GENERATOR

ZO = 50 Ω

+

IF

B

A

VFF

VCM

–

RL

SINGLE CHANNEL

+3.3 V

7

5

6

8

2

3

4

1

VCC

0.1 F

BYPASS

GND

OUTPUT VO

MONITORING

NODE

PULSE

GENERATOR

ZO = 50 Ω

+

IF

B

A

VFF

VCM

–

RL

DUAL CHANNEL

VO

0.5 V

VO (MIN.)

3.3 V

0 V

SWITCH AT A: I F = 0 mA

SWITCH AT B: I F = 7.5 mA

VCM

CMH

CML

VO (MAX.)

VCM (PEAK)

VO

6章104-117(PDF用)

01.5.24, 4:23 PM

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