ACPL-064L-000E 查看數據表（PDF） - Avago Technologies

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ACPL-064L-000E

Ultra Low Power 10 MBd Digital CMOS Optocouplers

Avago Technologies 

Supply Bypassing, LED Bias Resistors and PC Board Layout

The ACPL-x6xL optocouplers are extremely easy to use

and feature high speed, push-pull CMOS outputs. Pull-up

resistors are not required.

The external components required for proper operation

are the input limiting resistors and the output bypass

capacitor. Capacitor values should be 0.1 µF.

For each capacitor, the total lead length connecting the

capacitor to the VDD and GND pins should not exceed

20 mm.

For ACPL-M61L/W61L:

VDD = 3.3 V: R1 = 510 Ω ± 1%, R2 = 360 Ω ± 1%

VDD = 5.0 V: R1 = 1000 Ω ± 1%, R2 = 680 Ω ± 1%

RT = R1 + R2 R1/R2 ≈ 1.5

For ACPL-064L/K64L:

VDD = 3.3 V: R1 = 430 Ω ± 1%, R2 = 430 Ω ± 1%

VDD = 5.0 V: R1 = 845 Ω ± 1%, R2 = 845 Ω ± 1%

RT = R1 + R2 R1/R2 ≈ 1

R1 IF

VI

1

6

5

R2

GND1

3

4

ACPL-M61L

VDD

C = 0.1µF

Vo

GND2

R1 IF

VI

1

2

R2

GND1

3

6

5

4

ACPL-W61L

VDD

C = 0.1µF

Vo

GND2

VI R1 IF 1

8

R2

GND1

2

7

R2

GND2

3

6

VI R1 IF 4

5

ACPL-064L/K64L

VDD

C = 0.1µF

Vo1

Vo2

GND2

3.3V / 5V

VDD

IF

C = 0.1µF

V CM

VCM (PEAK)

A

B

Anode

Vo

Output

Monitoring

0V

VO VDD SWITCH AT A: IF = 0 mA

VO (min.)

CM H

node

SWITCH AT B: I F= 2 mA

Cathode

Shield

GND

VO

V O (max.)

GND

CM L

VCM

Pulse Gen +

−

Figure 8. Recommended printed circuit board layout and input current limiting resistor selection.

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