ONET4291VA

更新时间： 2024-11-09 03:44:59

品牌	Logo	应用领域
德州仪器 - TI		驱动器
页数	文件大小	规格书
20页	516K
描述
1 GBPS TO 4.25 GBPS MULTI-RATE VCSEL DRIVER

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ONET4291VA 数据手册

ONET4291VA

www.ti.com

SLLS674–SEPTEMBER 2005

1 GBPS TO 4.25 GBPS MULTI-RATE VCSEL DRIVER

FEATURES

•

Operating Temperature –40°C to 85°C

•

Multi-Rate Operation from 1 Gbps Up

To 4.25 Gbps

Small Footprint Surface Mount 4 mm × 4 mm,

20-Pin QFN Package

•

2-Wire Digital Interface

APPLICATIONS

Digitally Selectable Modulation Current

Digitally Selectable Bias Current

Automatic Power Control (APC) Loop

•

Multirate SFP/SFF Modules

•

1.0625 Gbps, 2.125 Gbps, and 4.25 Gbps Fibre

Channel Transmitters

Supports Transceiver Management

System (TMS)

•

Gigabit Ethernet Transmitters

•

Includes Laser Safety Features

Analog Temperature Sensor Output

Single 3.3-V Supply

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.

BLOCK DIAGRAM

A simplified block diagram of the ONET4291VA is shown in Figure 1.

This compact, low power 1-Gbps to 4.25-Gbps multi-rate VCSEL driver consists of a high-speed current

modulator, a modulation current generator, power-on reset circuitry, a 2-wire interface and control logic block, a

bias current generator and automatic power control loop, and an analog reference block.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas

Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...20

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与ONET4291VA相关器件

型号	品牌	获取价格	描述	数据表
ONET4291VARGP	TI	获取价格	SPECIALTY INTERFACE CIRCUIT, PQCC20, 4 X 4 MM, 0.50 MM PITCH, GREEN, PLASTIC, QFN-20
ONET4291VARGPR	TI	获取价格	1 GBPS TO 4.25 GBPS MULTI-RATE VCSEL DRIVER
ONET4291VARGPRG4	TI	获取价格	1 GBPS TO 4.25 GBPS MULTI-RATE VCSEL DRIVER
ONET4291VARGPT	TI	获取价格	1 GBPS TO 4.25 GBPS MULTI-RATE VCSEL DRIVER
ONET4291VARGPTG4	TI	获取价格	1 GBPS TO 4.25 GBPS MULTI-RATE VCSEL DRIVER
ONET8501P	TI	获取价格	11.3-Gbps RATE-SELECTABLE LIMITING AMPLIFIER
ONET8501PB	TI	获取价格	11.3-Gbps RATE-SELECTABLE LIMITING AMPLIFIER
ONET8501PB_17	TI	获取价格	11.3-Gbps Rate-Selectable Limiting Amplifier
ONET8501PBRGTR	TI	获取价格	11.3-Gbps RATE-SELECTABLE LIMITING AMPLIFIER
ONET8501PBRGTRG4	TI	获取价格	11.3-Gbps RATE-SELECTABLE LIMITING AMPLIFIER

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