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| 02067-DSH-001-G Datasheet, PDF (1/20 Pages) M/A-COM Technology Solutions, Inc. – 3.3 Volt Laser Driver IC for GbE and Fibre Channel to 2.1 Gbps | |||
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M02067
3.3 Volt Laser Driver IC for GbE and Fibre Channel to 2.1 Gbps
The M02067 is a highly integrated, programmable laser driver intended for datacom applications up to 2.1 Gbps.
Using differential PECL data inputs, the M02067 supplies the bias and modulation current for driving an edge-
emitting laser. The modulation output can be DC-coupled to the laser diode, giving a significant power saving over
AC-coupled operation.
The M02067 includes automatic power control to maintain a constant average laser output power over temperature
and life. In addition, the modulation current is temperature compensated to minimize variation in extinction ratio
over temperature.
Output flags indicate laser end of life as well as failure of the APC circuitry to maintain average output power.
Features
⢠Rise and fall times <150 ps
⢠DC or AC-coupled modulation drive
⢠Independently programmable laser bias and modulation currents
⢠Bias current to 100 mA and modulation current to 85 mA at
VCC = 3.3V
⢠Automatic laser power control, with programmable temperature
compensation and âslow-startâ
⢠Bias and modulation current monitors
⢠Operates with +3.3V supply
Applications
⢠Gigabit Ethernet
⢠Fibre Channel
⢠2 x Fibre Channel
⢠GBIC
Functional Block Diagram
VCC
02067-DSH-001-G
DATA
DIS
ENA
BIASMON
MODMON
IBIAS
55
IMOD
55
OUT-
OUT+
RD
RSHUNT
CSHUNT
VCC
GNDA
X100
OCA
X60
X1
VREF
Failure
Detect
OCASET CMPC
IBIAS
PD
FAIL
RMPCSET
VCC
Mindspeed Technologies®
Mindspeed Proprietary and Confidential
July 2011
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