+3.0V to +5.5V, 2.5Gbps VCSEL and Laser Driver
DescriptionThe MAX3996 is a high-speed laser driver for small-form-factor (SFF) fiber optic LAN transmitters. It contains a bias generator, a laser modulator, and comprehensive safety features. Automatic power control (APC) adjusts the laser bias current to maintain average optical power, regardless of changes in temperature or laser properties. The driver accommodates common anode or differential laser configurations. The output current range of the MAX3996 is appropriate for VCSELs and high-efficiency edge-emitting lasers.
The MAX3996 operates up to 3.2Gbps. It can switch up to 30mA of laser modulation current and sink up to 60mA bias current. Adjustable temperature compensation is provided to keep the optical extinction ratio within specifications over the operating temperature range. The MAX3996 accommodates various laser packages, including low-cost TO-46 headers. Low deterministic jitter (9psP-P), combined with fast edge transitions, (65ps) provides excellent margins compared to industry-standard transmitter eye masks.
This laser driver provides extensive safety features to guarantee single-point fault tolerance. Safety features include a transmit disable, redundant shutdown, and laser-bias monitoring. The safety circuit detects faults that could cause hazardous light levels and immediately disables the laser output. The MAX3996 safety circuits are compliant with SFF and small-form-factor pluggable (SFP) multisource agreements (MSA).
The MAX3996 is available in a compact 4mm x 4mm, 20-pin QFN package and a 20-pin thin QFN package. It operates over a temperature range of 0°C to +70°.
- 9psP-P Deterministic Jitter
- 20-Pin QFN 4mm x 4mm Package
- 3.0V to 5.5V Supply Voltage
- Automatic Power Control
- Integrated Safety Circuits
- 30mA Laser Modulation Current
- Temperature Compensation of Modulation Current
- Compliant with SFF and SFP MSA
- 10-Gigabit Ethernet WWDM
- ATM LAN Optical Transmitters
- Fibre Channel Optical Transmitters
- Gigabit Ethernet Optical Transmitters
- VCSEL Transmitters
|Part Number||Target Oper. Range|
|MAX3996||1 to 4.5||1000||3125|
MAX3996EVKIT: Evaluation Kit for the MAX3996
Technical DocumentsApp Note 1788 HFAN-06.2: IBIS Data for CML, PECL, and LVDS Interface Circuits
App Note 1102 HFAN-09.0.3: APON Class A, B, & C Physical Layer Requirements
App Note 274 HFAN-02.0: Interfacing Maxim Laser Drivers with Laser Diodes
App Note 210 Meet SFF-8472 Resolution and Accuracy Goals with Internal Calibration
Tools & Models
|Device||Fab Process||Technology||Sample size||Rejects||FIT at 25°C||FIT at 55°C||Material Composition|
|App Note||1788||HFAN-06.2: IBIS Data for CML, PECL, and LVDS Interface Circuits|
|App Note||1102||HFAN-09.0.3: APON Class A, B, & C Physical Layer Requirements|
|App Note||274||HFAN-02.0: Interfacing Maxim Laser Drivers with Laser Diodes|
|App Note||210||Meet SFF-8472 Resolution and Accuracy Goals with Internal Calibration|