CXB1818Q データシートの表示（PDF） - Sony Semiconductor

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CXB1818Q

Laser Diode Driver

Sony Semiconductor 

Pin Description

Pin

No.

Typical pin voltage [V]

Symbol

DC

AC

1 VCC4

3.3

2 VEE4

0

3 BiasAdj 1.5 to 0

4 SBias

5 Bias

0mA

to

2.5mA

0mA

to

60mA

6 VEE5

0

7Q

6mA

to 30mA∗1

1.3 to 3.3 6mA

to 50mA∗2

9 QBX

6mA

to 30mA∗1

1.3 to 3.3 6mA

to 50mA∗2

8 NC

10 VEE1

—

—

0

11 VCC1

3.3

12 TM

1.5

Equivalent circuit

VCC

45

260

3

30

10pF

240

8

VEE

7

9

Current

Source

VEE

VEE

12

10

CXB1818Q

Description

Positive power supply

for APC circuit.

Negative power supply

for APC circuit.

Bias current setting.

Bias current setting or

monitor.

Bias current output.

Open collector output.

Negative power supply

for bias circuit.

Modulation current

output.

Open collector output.

Complementary current

output.

Q and QBX are not

symmetrical output.

Use Q output for laser

diode.

No connected.

Negative power supply

for driver circuit.

Positive power supply

for driver circuit.

Chip temperature

monitor.

13 DrvMon

0mA

to

1.4mA

14 DrvAdj

0mA

to

9mA

∗1 Ta = –40 to 0°C

∗2 Ta = 0 to +85°C

VCC

22.5 150

VEE

–3–

Modulation current (IQ)

Rmon monitor.

IQ is monitored by

14

connecting a resistor

13

(Rmon) to this pin.

Modulation current (IQ)

setting.

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