LDA1-CP1 Datasheet, PDF (1/5 Pages) List of Unclassifed Manufacturers – Dual Mode Laser Driver

Analog Technologies, Inc.
Dual Mode Laser Driver
LDA1-CP1
Main features: high power, high precision, high stability, high efficiency, and small package.
Applications: DPSS, EDFA, and instrumentations.
Part number:
Maximum output current: 2A
LDA1-CP1
Maximum output voltage on LDA:
Laser current and power indication voltage:
Laser current indication absolute accuracy:
Laser current set-point voltage:
Laser power set-point voltage:
Current output noise:
Power supply input voltage:
Operation mode:
Operating temperature:
Module dimension (approximately):
0.9×Vps
0 to 2.5V
±0.5%
0 to 2.5V
0 to 2.5V
0.05% (RMS)@2A
3.2V to 5.5V
ACC (Automatic Current Control) and
APC (Automatic Power Control)
0°C to +85°C
25.4mm × 20 mm × 4.6mm
Pin Descriptions
Figure 2 illustrates the pin assignment on the module and basic application schematics.
Pin 1 SDNG, shut down, digital input. Negative logic, >2.3V = enable, <0.5V = shut down, norminal
threshold voltage = 1V. Its internal circuit is shown in Figure 2. The diode is for shortening the
shut down time.
Pin 2 CLPGD, control loop good indication, digital output. A HI level indicates control loop locked.
This pin is an open drain output and pulled up by a 20K resistor to VPS.
Pin 3 P/CM, power/current mode indication, analog output. HI = power mode, LO = current mode.
Low output impedance, capable of driving 20mA load.
Pin 4 GND, signal ground pin. Connect ADC and DAC grounds to here.
Pin 5 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 20ppm/°C stability max.
Pin 6 LIS, laser current set-point voltage, analog input. 0V to 2.5V sets the output current from 0 to 2A
linearly. The input impedance of this pin is 100KΩ. This pin can be set by an external analog
signal source, such as the output of a closed-looped op-amp, POT, or DAC.
Pin 7 LIO, laser current output indication, analog output. 0V to 2.5V indicates the laser current of from
0 to 2A linearly.
550 E. Weddell Drive, Suite 4, Sunnyvale, CA 94089, U. S. A. Tel.: [phone], Fax: [phone], Web: w w w .analogt echnologies.com
© Copyrights 2000– 2003, Analog Technologies, Inc. All Rights Reserved.
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