Part # MAX3740A datasheet

Part Manufacturer: Maxim


Part Description: MAX3740A DS

Part Details:

19-3118; Rev 2; 5/06 3.2Gbps SFP VCSEL Driver with Diagnostic Monitors MAX3740A General Description Features The MAX3740A is a high-speed VCSEL driver for small- Supports all SFF-8472 Digital Diagnostics form-factor (SFF) and small-form-factor pluggable (SFP)fiber optic LAN transmitters. It contains a bias genera- 2mA to 15mA Modulation Current tor, a laser modulator, and comprehensive safety fea- 1mA to 15mA Bias Current tures. The automatic power control (APC) adjusts thelaser bias current to maintain average optical power Optional Peaking Current to Improve VCSEL Edge over changes in temperature and laser properties. The Speed driver accommodates common cathode and differential Supports Common Cathode and Differential configurations. Configuration The MAX3740A operates up to 3.2Gbps. It can switch up to 15mA of laser modulation current and source up Automatic Power Control to 15mA of bias current. Adjustable temperature com- Safety Circuits Compliant with SFF and SFP pensation is provided to keep the optical extinction MSAs ratio within specifications over the operating tempera-ture range. The MAX3740A interfaces with the Dallas 4mm 4mm 24-Pin Thin QFN Package DS1858 to meet SFF-8472 timing and diagnosticrequirements. The MAX3740A accommodates variousVCSEL packages, including low-cost TO-46 headers. Ordering Information The MAX3740A safety circuit detects faults that couldcause hazardous light levels and disables the VCSEL PART TEMP RANGE PIN-PACKAGE output. The safety circuits are compliant with SFF and MAX3740AETG -40°C to +85°C 24 Thin QFN (4mm x 4mm) SFP multisource agreements (MSA). MAX3740AETG+ -40°C to +85°C 24 Thin QFN (4mm x 4mm) The MAX3740A is available in a compact 4mm 4mm, +Denotes lead-free package. 24-pin thin QFN package and operates over the -40°Cto +85°C temperature range. Applications Typical Application Circuit Multirate (1Gbps to 3.2Gbps) SFP/SFF Modules +3.3V Gigabit Ethernet Optical Transmitters 4.7k V Fibre Channel Optical Transmitters CC FAULT Infiniband Optical Transmitters

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MAX3740A.pdf Datasheet