6 − 115

Figure 11. Recommended printed circuit board layout.

Figure 12. Recommended LVTTL interface circuit.

GND BUS (BACK)

VCC BUS (FRONT)

ENABLE

0.1 F

10 mm MAX.

(SEE NOTE 5)

OUTPUT

NC

NC

SINGLE CHANNEL

DEVICE ILLUSTRATED.

*DIODE D1 (1N916 OR EQUIVALENT) IS NOT REQUIRED FOR UNITS WITH OPEN COLLECTOR OUTPUT.

VCC1

3.3 V

GND 1

D1*

IF

VF

SHIELD

SINGLE CHANNEL DEVICE

8

6

5

RL

0.1 F

BYPASS

2

3

+

–

3.3 V

GND 2

VCC2

2

220

Ω

1

7

VE

VCC1

3.3 V

GND 1

D1*

SHIELD

DUAL CHANNEL DEVICE

CHANNEL 1 SHOWN

8

7

5

RL

0.1 F

BYPASS

1

2

+

–

3.3 V

GND 2

VCC2

2

220

Ω

1

IF

VF

6章104-117(PDF用)

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