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See Technical Specifications

ONET4291VARGPT

4.25-Gbps VCSEL driver with serial interface

Manufacturer:

Texas Instruments, Inc
Mfr.Part #:

ONET4291VARGPT
Datasheet:

ONET4291VARGPT Datasheet (PDF)
Type:

Laser Diode Driver (Fiber Optic)
Data Rate:

4.25Gbps
Number of Channels:

1
Voltage - Supply:

2.9V ~ 3.6V
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ONET4291VARGPT General Description

The ONET4291VA is a versatile high-speed multi-rate VCSEL driver for fiber optic applications with data rates up to 4.25 Gbps.

The device provides a 2-wire interface which allows digital control of the modulation and bias currents, eliminating the need for of external components.

The ONET4291VA includes an integrated automatic power control loop as well as circuitry to support laser safety and transceiver management systems.

The part is available in a small footprint 4 mm × 4 mm 20-pin QFN package and it requires a single 3.3-V supply.

This power efficient multi-rate VCSEL driver is characterized for operation from -40°C to 85°C ambient temperature.

Key Features

Multi-Rate Operation from 1 Gbps Up To 4.25 Gbps
2-Wire Digital Interface
Digitally Selectable Modulation Current
Digitally Selectable Bias Current
Automatic Power Control (APC) Loop
Supports Transceiver Management System (TMS)
Includes Laser Safety Features
Analog Temperature Sensor Output
Single 3.3-V Supply
Operating Temperature -40°C to 85°C
Small Footprint Surface Mount 4 mm × 4 mm, 20-Pin QFN Package
APPLICATIONS
- Multirate SFP/SFF Modules
- 1.0625 Gbps, 2.125 Gbps, and 4.25 Gbps Fibre Channel Transmitters
- Gigabit Ethernet Transmitters

Specifications

Category	Integrated Circuits (ICs)Power Management (PMIC)Laser Drivers	Series	-
Type	Laser Diode Driver (Fiber Optic)	Data Rate	4.25Gbps
Number of Channels	1	Voltage - Supply	2.9V ~ 3.6V
Current - Supply	40 mA	Current - Modulation	11.5mA
Current - Bias	11 mA	Operating Temperature	-40°C ~ 85°C
Mounting Type	Surface Mount	Base Product Number	ONET4291