THORLABS EK2000 User Manual page 7

OEM Laser Diode Driver Evaluation Kit
Table 2. EK2000 Component Descriptions
Ref
Description
Des
P1 Laser Connections
Power Supply
P2
Hookup
Power Limit External
P3
Trim pot (50 k)
Current Limit External
P4
Trim pot (50 k)
On-Board Current
P5 Limit Trim pot
Enable.
On-Board Power
P6 Limit Trim pot
Enable.
Photodiode Amplifier
Output Monitor
Attach a DVM to
P7
these pins to monitor
the photo diode
transimpedance amp
Current Limit Monitor
P8
(40 mA/V)
ON/*OFF
P9 Shorting these two
pins will disable the
laser output.
Analog Modulation
If external analog
P10
modulation is not
required, these 2 pins
must be jumpered
together.
Page 5
output.
Input
Pin Pin
EK2000 LD2000R
1 11
2 12
3 13
1 9
2 10
1 7
2 6
3 10
1 7
2 14
3 10
1 14
2 15
1 5
2 6
1 8
2 12
1 18
2 10
1 17
2 10
1 3
2 10
Chapter 3: Description
Connection
Laser Diode Anode
Monitor Photodiode Anode
Laser Diode Cathode
Power Supply Positive +8 to
+12 VDC
Power Supply Return
CW Terminal (Vref 2.5 V)
Wiper Terminal
CCW Terminal (GND)
CW Terminal (Vref 2.5 V)
Wiper Terminal
CCW Terminal (GND)
Jumper these 2 pins to
enable on-board trim pot.
Jumper these 2 pins to
enable on-board trim pot.
These pins can be used to
monitor the laser photo
diode feedback current. The
voltage sensed here will be
determined by the
transimpedance gain :
(i.e. V= I MON * 20 k *
RF EXT / (20 k + RF EXT ) )
LIMIT OUT
GND
ON/*OFF input
GND
ANALOG MOD
GND
Rev F, May 21, 2018