Laser Driver VCSEL 1.25Gbps 1-CH 32-Pin TQFN T/R

The PHY1040-01QT-RR is a continuous mode VCSEL/Laser driver and limiting amplifier for use within fiber optic modules for SFP and SFF applications. Used with the PHY1092-01 or PHY1095-01 transimpedance amplifiers and a low cost serial EEPROM or microcontroller it forms a complete SFP module solution. The transmit section integrates a modulator output stage optimised as a LASER or VCSEL driver in common anode configurations. The bias current can be controlled either by a fast settling APC loop or in open loop mode which uses a temperature lookup table. The receiver includes a limiting amplifier with programmable bandwidth. A Signal Detect/Loss Of Signal function is implemented using the input signal modulation amplitude with user selectable threshold and hysteresis. Operating with a 3.3V supply and rated from -40 to +95°C ambient, the PHY1040-01QT-RR is housed in a 32pin, 5x5mm, RoHS compliant, QFN package.

• Common anode VCSEL driver output stage with 32mA max modulation drive and 20mA bias current.
• Continuous mode LASER driver with up to 80mA modulation and 90mA bias current
• Closed or open loop bias mode with temperature lookup table
• Temperature compensated modulation current
• Limiting amplifier with programmable low pass filter and output swing
• Device settings stored in external 2k EEPROM