The MAX3735A is a +3.3V laser driver for SFP/SFF applications from 155Mbps up to 2.7Gbps. The device accepts differential input data and provides bias and modulation currents for driving a laser. DC-coupling to the laser allows for multirate applications and reduces the number of external components. The MAX3735A is fully compliant with the SFP MSA timing and the SFF-8472 transmit diagnostic requirements.
An automatic power-control (APC) feedback loop is incorporated to maintain a constant average optical power over temperature and lifetime. The wide modulation current range of 10mA to 60mA (up to 85mA AC-coupled) and bias current of 1mA to 100mA make this product ideal for driving FP/DFB laser diodes in fiber-optic modules. The resistor range for the laser current settings is optimized to interface with the DS1858 SFP controller IC.
The MAX3735A provides transmit-disable control, a single-point latched transmit-failure monitor output, photocurrent monitoring, and bias-current monitoring to indicate when the APC loop is unable to maintain the average optical power.
The MAX3735A is available in a 4mm x 4mm TQFN package and operates over the extended temperature range of -40°C to +85°C.
|Part Number||Target Oper. Range|
|MAX3735A||1 to 4.5||155||2700||3.3||27||CML||60||100|
|See All Laser Drivers (22)|
| Pricing Notes: |
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.
|Device||Fab Process||Technology||Sample size||Rejects||FIT at 25°C||FIT at 55°C|
|App Note||3766||HFTA-12.0: Measuring Crosstalk Penalty in High-Speed Bidirectional Serial Communication Modules|
|App Note||3742||MAX3735A: Special Considerations When Interfacing the MAX3735A to the DS1859|
|App Note||3725||HFAN-02.6.0: Reducing Noise and Wander in Low-Speed (<622Mbps) Optical Transmitters|
|Reference Schematic||3600||HFRD-21.0: 2.5Gbps Cooled TOSA Evaluation Board (Includes MAX3735A Laser Driver and MAX8521 TEC Controller)|
|App Note||3427||Interfacing the DS1859 Digitally Controlled Resistors to the MAX3735 Laser Driver|
|Reference Schematic||3376||HFRD-15.3: High-Frequency SFP Host Board (Includes Integrated RS-232 to I²C Conversion)|
|App Note||3239||HFAN-02.5.0: Single-Ended vs Differential Methods of Driving a Laser Diode|
|App Note||3015||MAX3735A: MAX3735A Laser Driver Output Configurations, Part 4: Driving VCSELS|
|App Note||2930||HFAN-02.4.0: Over-Voltage Protection for SFP Laser Drivers [Application Brief]|
|App Note||2703||MAX3735A: Laser Driver Output Configurations, Part 3: Differential Drive|
|Reference Schematic||2135||HFRD-04.0: 2.7Gbps, 1310nm Small Form Factor Pluggable (SFP) Transceiver|
|App Note||2111||MAX3735A: Laser Driver Output Configurations, Part 1: DC-Coupled Optimization Techniques|
|App Note||1747||MAX3735: Choosing the APC Loop Capacitors Used with MAX3735/MAX3735A SFP Module Designs|