General Description

The SY84782U is a single 2.5V supply, ultra-low power, small form factor laser diode driver for telecom/datacom applications. Intended to drive FP/DFB lasers at data rates up to 1.25Gbps, it is especially useful for Compact SFP, SFP, and SFF modules where power requirements are quite stringent. The driver can deliver modulation current up to 90mA and offers a high compliance voltage, all of which make the SY84782U suitable for high current operations in both AC- and DC-coupled applications.

Features

• 2.5V power supply option

• Ultra low power consumption (63mW typ)

• Multirate up to 1.25Gbps

• Fast rise and fall time

• Modulation current up to 90mA

• Laser can be DC- or AC-coupled

• Small form factor 16-pin (3mm × 3mm) QFN package

• MIC3003G compatible

• Extensive temperature range (–40°C to +95°C)

Applications

• Multirate LAN, MAN applications: Fibre Channel, GbE,

SONET OC3/12/24, and SDH STM1/4/8

• CSFP/SFF/SFP optical modules