Description The CXB1549Q is a high-speed monolithic Laser Diode Driver/Current Switch with ECL/PECL input level. Open collector outputs are provided at the output pins (Q, QBX) and have the capacity of driving modulation current of 50mAp-p at a max. data rate of 1.25Gbps (Min.). Along with the modulation current generator there is the laser diode bias generator which has capacity of sourcing up to 60mA (Bias). Features • Maximum data rate (NRZ): 1.25Gbps • Power on Reset function • Alarm and Shutdown function • Signal Duty cycle correction • Automatic Power Control (APC) for bias current • Activity detector function for laser safety • Power indicate function • Differential PECL inputs or AC coupled inputs Application • Gbit-ethernet: 1.25Gb/s • SONET/SDH: 622Mb/s • Fibre channel: 532Mb/s, 1.062Gb/s
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