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

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CXB1818Q

Laser Diode Driver

Sony Semiconductor 

CXB1818Q

Pin

No.

Typical pin voltage [V]

Symbol

DC

AC

29 SDNB

VCC

0 to 3.3

30 SDN

29

30

0 to 3.3

VEE

Equivalent circuit

Description

5k 5k

5k 5k

Complementary TTL

300

input to disable the

300

output current.

(Shutdown input)

60µA

When left open, High.

60µA

31 Tset

32 VREF

1.7

33 VCC6

3.3

VCC

2.4k

2.4k 20pF

70µA

VEE

220 140

Output duty cycle

control.

Rset

This pin controls the

31

falling edge of the input

High pulse. Variable

delay limit of that is from

0 to 1.0ns. Duty cycle is

controlled by connecting

a resistor value between

VCC and this pin.

VCC

32

2.4k

9.1k

VEE

300

200

300

1.9mA

Temperature

compensated reference

voltage for APC.

Approximately 1.7V

(Constant for VEE

reference)

Positive power supply

for alarm output circuit.

34 LDAlm

VCC

0.2 to 3.0

35 LDAlmB

0.2 to 3.0 VEE

Activates when the

fault is detected in the

34 laser monitor diode

35 circuit.

(Pseudo LVTTL output)

–6–

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