Part # MAX3643 datasheet

Part Manufacturer: Maxim


Part Description: MAX3643 DS

Part Details:

19-3848; Rev 0; 11/05 EVALUATION KIT AVAILABLE Burst-Mode Laser Driver MAX3643 General Description Features The MAX3643 burst-mode laser driver provides bias 10mA to 85mA Modulation Current and modulation current drive for PON burst-mode ONTapplications. It is specifically designed for use with a 1mA to 70mA Bias Current low-cost external controller for the APC (and if desired, Monitor Diode Sample and Hold AMC) loop. A high-speed differential burst-enable inputenables the driver to switch the laser from a dark (out- 45ps Output Transition Time put off) condition to full on-condition in less than 2ns. 2ns Turn-On/-Off Time When BEN is inactive, typical modulation and bias cur-rents are 5µA each. Reference Voltage Generator Laser modulation current can be set from 10mA to 85mA LVPECL High-Speed Inputs (Data, Burst Enable) and bias current can be set from 1mA to 70mA using theMODSET and BIASSET inputs. A sample-and-hold circuitis provided to capture the monitor diode output during Ordering Information short PON bursts, if needed, and the BEN high-speedsignal is mirrored on an LVCMOS output to be used by PIN- PKG PART TEMP RANGE PACKAGE CODE the controller operating the APC/AMC loop. The MAX3643 burst-mode laser driver is packaged in a MAX3643ETG -40°C to +85°C 24 TQFN-EP* T2444-3 4mm x 4mm, 24-pin thin QFN package. It operates from MAX3643ETG+ -40°C to +85°C 24 TQFN-EP* T2444-3 -40°C to +85°C. *EP = Exposed paddle. Applications +Denotes lead-free package. 155/622/1244Mbps A/B/GPON ONT Modules Pin Configuration appears at end of data sheet. 1.25Gbps IEEE EPON ONT Modules Typical Application Circuit +3.3V 0.1µF 24 27nH 15

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MAX3643.pdf Datasheet