M66512FP 데이터 시트보기 (PDF) - MITSUBISHI ELECTRIC

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M66512FP

LASER-DIODE DRIVER

MITSUBISHI ELECTRIC  

MITSUBISHI 〈DIGITAL ASSP〉

M66512P/FP

LASER-DIODE DRIVER

EVALUATION OF SWITCHING OPERATION WAVEFORMS

Connector

0.1µF

VCC 1

GND 2

VL1 3

VCC=5V

Ta=25°C

22µF

1 VCC1

2 VL1

RC1

3 1RC

680Ω

RO

20Ω

1RO 20

NC 19

LD 18

ML44114N

( V ) 100Ω

RLD

RD 2Ω

(V)

CLD

300pF

Light intensity

meter

50Ω

VL2 4

VOFF 5

RC2 4 VL2

5 2RC

680Ω

GND2 17

PD 16

Oscilloscope

(laser light output)

GND 6

CO 7

MO 8

DATA 9

PD 10

RC3 6 VOFF

JP

DATA 15

7 3RC

680Ω

VCC2 14

0.1

µF

( V ): Optimum values of RLD and CLD

may vary depending on the kind

8 GND1

CO 13

of the laser in use and the pattern

RM

9 1RM

MO 12

of the printed board.

3kΩ

10 2RM

NC 11

P.G. (Note 9) 50Ω

Oscilloscope (data input)

Evaluation Circuit

Note 9. tr=tf=6ns, VO=3VP-P, duty=50%

SWITCHING OPERATION WAVEFORMS

DATA input

(2V/div)

3V

0V

3mW

Laser light output

(1mW/div)

0mW

10Mbit/s (t : 50ns/div)

20Mbit/s (t : 20ns/div)

25Mbit/s (t : 20ns/div)

40Mbit/s (t : 10ns/div)

Note: The delay from the DATA input to the laser light output contains the delay occurring in measuring systems.

10

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