M02094-12 Datasheet, PDF (40/46 Pages) M/A-COM Technology Solutions, Inc. – EPON FTTH modules

M02094-12
3.3 or 5 Volt VCSEL/FP Laser Driver IC for Applications to 2 Gbps
Rev V5
Table 3-3. Circuit Response to Single-Point Fault Conditions
Pin Name
MOD_SET
Circuit Response to Over-voltage Condition or Short to Circuit Response to Under-Voltage Condition or Short to
V_CC
Ground
When the laser is DC coupled in common anode configuration, the A fault state occurs.⁽¹⁾
APC loop will attempt to compensate for the drop in output power. If
the APC loop can not maintain the set average power, a fault state
occurs.^(1,2)
TC_SLOPE
DISDLY
Does not affect laser power.
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)
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.
40
M/A-COM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice.
Visit www.macom.com for additional data sheets and product information.
For further information and support please visit:
http://www.macom.com/support