3.3 Volt Laser Driver IC for Applications to 3 Gbps
PIN DESCRIPTION - TQFP 32
Ground for output stage (inductor to ground)
Monitor photodiode input. This input is connected to the monitor photodiode anode for
automatic power control.
CMPC Mean power control dominant pole capacitor
NC No connect and may be grounded for compatibility with MAX3869
Connecting a resistor between this pin and ground sets the temperature coefficient of
IMODSET (using the internal IC temperature).
MPCSET A resistor between this pin and ground sets the mean optical power
MODSET Modulation current set. Connect a resistor between this pin and ground to set.
OCASET Overcurrent alarm set. Connect a resistor between this pin and ground to set.
ABSOLUTE MAXIMUM RATINGS
Power supply (VCC-GND)
Maximum laser bias current
Maximum laser moduation current (through OUT+/OUT2+, OUT-/OUT2-)
-0.5 to +6.0
-40 to +85
-65 to +150
These are the absolute maximum ratings at or beyond which the IC can be expected to fail or be damaged.
Reliable operation at these extremes for any length of time is not implied.
ADVANCED INFORMATION - REV FF