Evaluates: MAX3869
MAX3869 Evaluation Kit
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Adjustment and Control Descriptions (see Quick Start first)
Electrical OutputElectrical Output SMA—
OPTICAL
FUNCTIONNAME
Refer to the Design section of the MAX3869 data sheet. Set APC cur-
rent, then increase bias current until LED goes off (LED is illuminated
when the APC loop is open and off when the APC loop is closed).
Fail IndicatorD1
TTL low level indicates a failure in the APC loop.Fail IndicatorTP1
ELECTRICAL
JU4
JU5
J8
R41
R42
R40
TP10
D3
For closed-loop operation, R16 or R40 adjusts the monitor diode current
level.
APCR16
Adjusts the laser bias current. In open-loop mode, R15 or R42 adjusts
the laser bias current. In closed-loop operation, R15 or R42 adjusts the
maximum laser bias current.
BIASR15
Adjusts the laser modulation current.MODR14
Enables/disables the output currents. Shunting disables the part.
Remove shunt for normal operation.
OUTPUT DISABLEJU2
Enables/disables the clock input. Shunt for direct data transmission.
Remove shunt to enable clock input.
CLOCK DISABLEJU1
COMPONENT
