Features: · Fully Compatible with SFP and SFF-8472 Specifications
· Programmable Modulation Current from 5mA to 60mA (DC-Coupled)
· Programmable Modulation Current from 5mA to 85mA (AC-Coupled)
· Programmable Bias Current from 1mA to 100mA
· 56ps Edge Transition Times
· 22mA (typ) Power-Supply Current
· Multirate Operation Up to 3.2Gbps
· On-Chip Pullup Resistor for DIS
· 16-Pin, 3mm × 3mm Thin QFN PackageApplicationGigabit Ethernet SFP/SFF Transceiver Modules
1G/2G Fibre-Channel SFP/SFF Transceiver Modules
Multirate OC-3 to OC-48 FEC SFP/SFF Transceiver Modules
10G Ethernet LX-4 ModulesSpecificationsStresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
Power-Supply Voltage VCC ............................-0.5V to +6.0V
Voltage at IN+, IN-, DIS......... -0.5V to (VCC + 0.5V)
Voltage at BC_MON, MODSET, BIASSET...........-0.5V to +3.0V
Voltage at OUT+, OUT-.........+0.5V to (VCC + 1.5V)
Voltage at BIAS ....................+0.5V to (VCC + 0.5V)
Current into BIAS, OUT+, OUT- ...................-20mA to +150mA
Current into IN+, IN-................ -20mA to +20mA
Continuous Power Dissipation (TA = +85°C)
16-Pin Thin QFN (derate 25mW/°C above +85°C)...........2W
Operating Junction Temperature Range ...-55°C to +150°C
Storage Temperature Range .....................-55°C to +150°C
Die Attach Temperature ............................................+400°C
Lead Temperature (soldering, 10s) ...........................+300°C
DescriptionThe MAX3736_1280675 is a compact, +3.3V multirate laser driver for SFP/SFF applications up to 3.2Gbps. The MAX3736_1280675 accepts differential data and provides bias and modula-tion currents for driving a laser. DC-coupling to the laser allows for multirate applications, and reduces the num-ber of external components.
The wide 5mA to 60mA (85mA AC-coupled) modulation current range and 1mA to 100mA bias current make the MAX3736_1280675 ideal for driving FP/DFB laser diodes in fiber-optic modules. The laser current setting of MAX3736_1280675 can be con- trolled by a current DAC, a voltage DAC, or a resistor. Very low power dissipation, small package size, and reduced component count, make this part an ideal solu-tion for SFP-module applications.
The MAX3736_1280675 is available in dice or in a small 3mm x 3mm, 16-pin thin QFN package. It operates over a -40°C to +85°C temperature range.
MAX3736_1280675 Data Sheet
