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Data Sheet

FULL DATA SHEET (PDF, 256kB) Download   E-Mail

Description

The MAX3643 burst-mode laser driver provides bias and modulation current drive for PON burst-mode ONT applications. It is specifically designed for use with a low-cost external controller for the APC (and if desired, AMC) loop. A high-speed differential burst-enable input enables the driver to switch the laser from a dark (output off) condition to full on condition in less than 2ns. When BEN is inactive, typical modulation and bias currents are 5µA each. Laser modulation current can be set from 10mA to 85mA and bias current can be set from 1mA to 70mA using the MODSET and BIASSET inputs. A sample-and-hold circuit is provided to capture the monitor diode output during short PON bursts, if needed, and the BEN high-speed signal is mirrored on an LVCMOS output to be used by the controller operating the APC/AMC loop. The MAX3643 burst-mode laser driver is packaged in a 4mm x 4mm, 24-pin thin QFN package. It operates from -40°C to +85°C.

Key Features		Applications/Uses
10mA to 85mA Modulation Current 1mA to 70mA Bias Current Monitor Diode Sample and Hold 45ps Output Transition Time 2ns Turn-On/Off Time Reference Voltage Generator LVPECL High-Speed Inputs (Data, Burst Enable)		1.25Gbps IEEE EPON ONT Modules A/B/GPON ONT Modules up to 2.5Gbps

Diagram

Typical Application Circuit

Application Notes

Application Note 3887: MAX3643: Using the MAX3643 Laser Driver with a Low-Cost Microcontroller - MAX3643 Application Note 3896: HFTA-14.0 Design Challenges of GPON FEC Receivers - MAX3643 Application Note 3926: HFRD-22.3: Modular GPON (MOGPON) ONT - MAX3643 Application Note 3927: MAX3643: Generating a TX Power Monitor in Burst Mode Applications (Using MAX3643 and the DS1863 or DS1865) - MAX3643 Application Note 3933: HFRD-25.1: Ultra Low-Cost GEPON SFF ONT - MAX3643 Application Note 3985: HFRD-25.2: Low-Cost GEPON SFF ONT with µC - MAX3643 Application Note 3993: HFRD-26.0: GEPON SFF Host Board - MAX3643 Application Note 4227: HFAN-02.7.0 Reducing Laser Driver Output Noise When No Input Signal Is Applied - MAX3643

Evaluation Kits

MAX3643EVKIT

Design Guides

Fiber (PDF)

Reliability Reports

Show FIT data for: MAX3643 Request Reliability Report for: MAX3643

Software/Models

MAX3643ETG IBIS Model

Ordering Information
Notes: Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day. Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions. * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.
Devices: 1-2 of 2
MAX3643	Free Sample	Buy	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX3643ETG+			THIN QFN;24 pin; Dwg: 21-0139 (PDF) Use pkgcode/variation: T2444+3*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX3643ETG+T			THIN QFN;24 pin; Dwg: 21-0139 (PDF) Use pkgcode/variation: T2444+3*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis

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Description   Key Features   Applications/Uses   Key Specifications   Diagram

Data Sheet   Application Notes   Design Guides   Engineering Journals   Reliability Reports   Software/Models   Evaluation Kits

Price and Availability   Samples   Buy Online   Package Information   Lead-Free Information

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