MAX3656EVKIT+ Maxim Integrated, MAX3656EVKIT+ Datasheet - Page 3

• Manufacturer Part Number: MAX3656EVKIT+
• Description: Power Management IC Development Tools MAX3656 Eval Kit
• Manufacturer: Maxim Integrated
• Series: MAX3656r

Figure 1. Laser Attachment
Table 1. Adjustment and Control Descriptions
COMPONENT
JP33
JP30
JP32
JP26
JP28
R79
R59
R90
D2
_______________________________________________________________________________________
MODSET RESISTOR
APCSET RESISTOR
BIASMAX SELECT
MODSET SELECT
APCSET SELECT
RESISTOR
BIASMAX
LONGB
NAME
FAIL
EN
This jumper connects a fixed resistance (R82, not installed) or a variable
resistance (R120 + R79) between the APCSET pin and GND.
This 50kI variable resistor, in addition to a 1.5kI series resistor (R120), sets the
external resistance between the APCSET pin and GND when a shunt is installed
on the VAR side of jumper JP33. Turning the variable resistor clockwise increases
the average optical power.
This jumper connects a fixed resistance (R61, not installed) or a variable
resistance (R119 + R59) between the MODSET pin and GND.
This 50kI variable resistor, in addition to a 3kI series resistor (R119), sets the
external resistance between the MODSET pin and GND when a shunt is installed
on the VAR side of jumper JP30. Turning the variable resistor clockwise increases
the modulation current and extinction ratio.
This jumper connects a fixed resistance (R118, not installed) or a variable
resistance (R88 + R90) between the BIASMAX pin and GND.
This 50kI variable resistor, in addition to a 4.3kI series resistor (R88), sets the
external resistance between the BIASMAX pin and GND when a shunt is installed
on the VAR side of jumper JP32. Turning the variable resistor clockwise increases
the maximum bias current.
This jumper is used to connect the EN pin to V
(driver enabled).
This jumper is used to connect the LONGB pin to V
to GND (burst on-time ≤ 1.2Fs).
The APC loop is functional when the LED is on. The LED is off if the BIASMAX is
set too low, the monitor diode (MD) pin is not connected, or the modulation
current is set too high.
BOTTOM OF PCB
TOP OF PCB
MAX3656 Evaluation Kit
LD
PD
FUNCTION
CC
(driver disabled) or to GND
CC
(burst on-time > 1.2Fs) or
3