M02090 Datasheet, PDF (1/2 Pages) M/A-COM Technology Solutions, Inc. – 3.3V Burst-Mode Laser Driver and Integrated Limiting Amplifier

3.3V Burst-Mode Laser Driver and Integrated Limiting Amplifier with
Eye-Minder^TM Technology for Fiber-to-the-Premises
M02090
2.5 Gbps laser driver and integrated limiting
amplifier in a 5x5mm QFN package
The M02090 is a highly integrated, programmable burst-
mode laser driver with a limiting amplifier intended for
ONU/OLT applications up to 2.5 Gbps. The M02090
offers a single, flexible solution that addresses all PON
applications of BPON, GEPON and GPON.
Capable of independently driving 100 mA of modulation
current and 80 mA of bias current, the laser driver in the
M02090 can independently control bias and modulation
currents via the Eye-Minder^TM, a dual closed-loop that
maintains the target extinction ratio by compensating
for laser aging, temperature, and voltage changes.
Open-loop and average closed-loop configurations are
also supported.
The limiting amplifier inputs in the M02090 have selec-
table bandwidth. The input sensitivity is less than 3 mV at
1.25 Gbps, and less than 6 mV at 2.5 Gbps. The positive
emitter-coupled logic (PECL) differential outputs achieve
full swing at the minimum specified input signal. Also
included are features such as programmable loss of
signal, received signal strength indication and JAM func-
tion, which can be used to squelch chatter on the
outputs when no signal is present.
> KEY FEATURES
> Integrated 2.5 Gbps burst-
mode driver with limiting
amplifier
> Up to 100mA of modulation
current and 80mA of bias
current
> Dual 2-wire interface
enables operation inde-
pendently or with an
external microcontroller
> Dual digital closed-loop
architecture, enables real
time extinction ratio
control
> 2.5 ns burst on/off time
> Extended temperature
range of -40ºC to +100ºC
Many features of the M02090 can be accessed through
a 2-wire interface by an external microcontroller or the
device can operate independently with an external
EEPROM.
The M02090 is offered in a compact 32 pin, 5mm X 5mm
QFN package and is specified over an extended operating
temperature range of -40ºC to +100ºC.
>