M02069_17 Datasheet, PDF (20/45 Pages) M/A-COM Technology Solutions, Inc. – 3.3 or 5 Volt VCSEL/FP Laser Driver IC for Applications to 4.3 Gbps

M02069-12
3.3 or 5 Volt VCSEL/FP Laser Driver IC for Applications to 4.3 Gbps
Rev V2
Table 2-1. Pin Definitions
Pin Number Pin Name
Pin equivalent load
V_CC
V_CC3
Function
Peaking adjustment input. A resistor (2kΩ to 20kΩ) between this pin and ground sets
the amount of peaking current on OUT- to improve the fall time of the laser output. The
peaking current is approximately (5 * (1.3V / 2 kΩ + resistance to ground)).
Connect to V_CC3 to disable peaking control.
+ 1.28V
22
PEAK_ADJ
PEAK_ADJ
-
1.8 kΩ
V_{CC VCC3}
Modulation current control. Connect a resistor to ground to set the modulation current.
+ 1.28V
23
MOD_SET
MOD_SET
-
190 Ω
24
CENTER
PAD
TC_SLOPE
GND
See MOD_SET drawing
Modulation current temperature compensation slope adjustment. Connect a resistor to
ground to set the temperature coefficient. Leave open to minimize the temperature
compensation coefficient.
Ground. Must be connected to ground for proper operation. This is the only package
ground connection.
20
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