© 2018
5
WLD SERIES LASER DIODE DRIVERS
Table 2. Description of jumper connections and functionality on the WLD3393 Evaluation Board.
JUMPER
OPTIONS
FUNCTION
LD
RANGE
200 mA or 2 A
Configures the laser diode output current range to either 200 mA or 2 A.
PD
RANGE
200 μA or 2 mA
Configures the photodiode current range to either 200 μA or 2 mA.
POWER
SELECT
Separate or tied
power supplies
Configures the WLD3393 to either use separate V
S
and V
DD
supplies, or to tie the V
S
and V
DD
connections for single supply operation.
VSET
SOURCE
T or X
Configures the WLD3393 to either use the onboard setpoint trimpot (T) or the external setpoint
input (X). If a combination of onboard and external setpoints is required, the jumper should be
placed in the “T” position, and an external setpoint connected.
For more information about the jumpers on the bottom of the WLD3393 evaluation board, see
