DBD-R2V1 Datasheet, PDF (1/6 Pages) List of Unclassifed Manufacturers – Dual Mode Bi-directional Dual Input Laser Driver

Analog Technologies, Inc.
DBD-R2V1
Dual Mode Bi-directional Dual Input Laser Driver
Main features: dual control mode, bi-directional output, dual input mode (analog & digital), high
precision, high reliability, and small package.
Part number:
DBD-R2V1
Maximum output current on LDA and LDC: 200mA
Output voltage range on LDA:
0.8V  8V
Output voltage range on LDC:
-0.8V  -8V
Laser current and power control accuracy: 14bit
Laser current control resolution:
48.8µA/step
Laser power control resolution:
0.024%/step
Laser current & power digital control signal: TTL, serial
Laser current set-point voltage:
0 to 2.5V
Laser power set-point voltage:
0 to 2.5V
Laser current and power indication voltage: 0 to 2.5V
Laser current indication absolute accuracy: ±0.2%
Current output noise:
0.1% RMS
Soft-start rise time:
0.1 S
Power input DC voltage:
4.75V to 5.25V
Operation mode:
CC (Constant Current) and CP (Constant Power)
Operating temperature:
-20°C to +85°C
Module dimension:
25.5mm × 20 mm × 4.5mm
Pin Descriptions
Pin 1 SD, shut down, digital input, positive logic, >2.3V = shut down, <0.5V = enable, normal
threshold voltage = 1V. The input current is between −1µA and 1µA. It is pulled down by a 20K
resistor to ground.
Pin 2 CLGD, control loop good indication, digital output. The maximum output current is 10mA. A HI
level indicates control loop locked.
Pin 3 GND, signal ground pin. Connect ADC and DAC grounds to here.
Pin 4 2.5V, reference voltage, analog output. It is used by the internal DACs as the reference voltage. It
can source and sink 5mA current with a maximum 20ppm/°C stability max.
Pin 5
LIS, laser current set-point voltage, analog input. 0V to 2.5V sets the output current from 0 to
200mA linearly. The input impedance of this pin is 20KΩ. This pin can be set by an external
analog signal source, such as the output of a closed-loop op-amp, POT, or DAC, or set by the
internal DAC B and leave LPS pin unconnected. The internal DAC is connected to the reference
voltage 2.5V, so that its full scale is 2.5V.
5 5 0 E . W eddell D riv e , S u ite 4 , S u n n y v a le, C A 9 4 0 8 9 , U . S . A . Tel.: (4 0 8 ) 7 4 7 -9 7 6 0 , F a x : (4 0 8 ) 7 4 7 -9 7 7 0 , W eb: w w w . a n a l o g t e c h n o l o g i e s . c o m
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