M02069 Datasheet, PDF (35/44 Pages) M/A-COM Technology Solutions, Inc. – 3.3 or 5 Volt VCSEL/FP Laser Driver IC for Applications to 4.3 Gbps

Functional Description
Table 3-3. Circuit Response to Single-Point Fault Conditions
Pin Name
Circuit Response to Over-voltage Condition or Short Circuit Response to Under-Voltage Condition or Short
to V_CC
to Ground
TC_SLOPE
Does not affect laser power.
When the laser is DC coupled in common anode configuration,
the APC loop will attempt to compensate for any change in
output power. If the APC loop can not maintain the set average
power, a fault state occurs.^(1,2)
DISDLY
Does not affect laser power.
Does not affect laser power.
Notes:
1. A fault state will assert the FAIL output, disable bias and modulation outputs and will either open the switch at SV_CC (CC_SEL=high) or S_GND
(CC_SEL=low).
2. Does not affect laser power when the output is AC coupled to the laser.
3. Does not affect laser power during common cathode operation.
4. Does not affect laser power during common anode operation.
02069-DSH-001-D
Mindspeed Technologies™
35
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