Laser Drivers .155-2.5Gbps Burst Mode Laser Driver

MAX3737 Multirate Laser Driver With Extinction Ratio Control

Buffers & Line Drivers QFN-24 (3X3)

Laser Drivers QFN 32-Pin

LED Display Drivers QFN 28-PIN TAPED (2500/REEL)

Laser Drivers 2.5G LDD with Integrated Post Amp

Laser Drivers

3.3V, 3.2Gbps VCSEL Driver Features: 60ps Rise and Fall Times, 10ps Deterministic Jitter 155Mbps to 3.2Gbps Laser Diode Driver for VCSELs Eye Diagram is Stable and Consistent Across Modulation Range and Temperature 1mA to 12mA Modulation Current Easy Board Layout, Laser can be Remotely Located if Desired No Input Matching or AC Coupling Components Needed On-Chip ADC for Monitoring Critical Parameters Digital Setup and Control with I2C™ Serial Interface Emulation and Set-Up Software Available Operates Standalone or with a Microprocessor On-Chip DACs Eliminate External Potentiometers Constant Current or Automatic Power Control First and Second Order Temperature Compensation On-Chip Temperature Sensor Extensive Eye Safety Features Single 3.3V Supply 4mm × 4mm QFN Package

The MAX3656 is a burst-mode laser driver that operates at data rates from 155Mbps up to 2.5Gbps. The laser driver accepts either positive-referenced emitter-coupled logic (PECL) or current-mode logic (CML) data inputs and provides bias and modulation current for the laser diode. The device can switch the laser diode from a completely dark (off) condition to a full (on) condition (with proper bias and modulation currents) in less than 2ns. The MAX3656 incorporates DC-coupling between laser driver and laser diode and operates with a single-supply voltage as low as +3.0V.A digital automatic power-control (APC) loop is provided to maintain the average optical power over the full temperature range and lifetime. The APC loop is functional for a minimum burst on-time of 576ns and minimum burst off-time of 96ns, with no limit on the maximum burst on- or off-time. A fail monitor is provided to indicate when the APC loop can no longer maintain theaverage power. The MAX3656 can be configured for nonburst-mode applications (continuous mode) by connecting burst enable (BEN) high. For power saving, theMAX3656 provides enabling and disabling functionality. The modulation current can be set from 10mA to 85mA and the bias current can be set from 1mA to 70mA.The MAX3656 is packaged in a small, 24-pin, 4mm x 4mm thin QFN package and consumes only 132mW (typ), excluding bias and modulation currents.ApplicationsAPON, EPON, and GPON Upstream TransmittersFiber-to-the-Home (FTTH) and Fiber-to-the-Business (FTTB) Broadband Access SystemsPassive Optical Network (PON) Transmitters

The MAX3738 is a +3.3V laser driver designed for multirate transceiver modules with data rates from 1Gbps to 4.25Gbps. Lasers can be DC-coupled to the MAX3738 for reduced component count and ease of multirate operation.Laser extinction ratio control (ERC) combines the features of automatic power control (APC), modulation compensation, and built-in thermal compensation. The APC loop maintains constant average optical power. Modulation compensation increases the modulation current in proportion to the bias current. These control loops, combined with thermal compensation, maintain a constant optical extinction ratio over temperature and lifetime.The MAX3738 accepts differential data input signals. The wide 5mA to 60mA (up to 85mA AC-coupled) modulation current range and up to 100mA bias current range, make the MAX3738 ideal for driving FP/DFB lasers in fiber optic modules. External resistors set the required laser current levels. The MAX3738 provides transmit disable control (TX_DISABLE), single-point fault tolerance, bias-current monitoring, and photocurrent monitoring. The device also offers a latched failure output (TX_FAULT) to indicate faults, such as when the APC loop is no longer able to maintain the average optical power at the required level. The MAX3738 is compliant with the SFF-8472 transmitter diagnostic and SFP MSA timing requirements.The MAX3738 is offered in a 4mm x 4mm, 24-pin thin QFN package and operates over the extended -40°C to +85°C temperature range.Applications1Gbps/2Gbps/4Gbps Fibre Channel SFF/SFP and GBIC TransceiversGigabit Ethernet SFF/SFP and GBIC TransceiversMultirate OC-24 to OC-48 FEC Transceivers