Datasheet > AD8128

AD8128

更新时间： 2024-02-11 22:11:04

品牌	Logo	应用领域
亚德诺 - ADI		接收机
页数	文件大小	规格书
12页	314K
描述
CAT-5 Receiver with Adjustable Line Equalization

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中文翻译

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数据手册

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AD8128 数据手册

CAT-5 Receiver with

Adjustable Line Equalization

AD8128

FUNCTIONAL BLOCK DIAGRAM

FEATURES

Tuned to compensate for Category-5 (CAT-5) cable losses

Up to 100 meters @ 120 MHz

AD8128

HPF

2 voltage-controlled frequency response adjustment pins

High frequency peaking adjustment

Broadband gain adjustment

2700 V/μs slew rate

Low output noise

IN+

OUT

HPF

LPF

IN–

1.5 mV rms integrated noise (1 GHz) @ 100 meters

equalized bandwidth

DC output offset adjust

Low offset voltage error: 7 mV typ

Equalized pass-band ripple 1 dB to 70 MHz

Input: differential or single ended

Supply current: 24 mA on 5 V

OFFSET

PEAK

GAIN

Figure 1.

Small 8-lead 3 mm × 3 mm LFCSP

APPLICATIONS

Keyboard-video-mouse (KVM)

RGB video over unshielded twisted pair (UTP) cable receivers

Professional video projection and distribution

Security video

GENERAL DESCRIPTION

The AD8128 is a high speed, differential receiver/equalizer that

compensates for the transmission losses of unshielded twisted

pair (UTP) CAT-5 cables. Various frequency dependent gain

stages are summed together to best approximate the inverse

frequency response of CAT-5/CAT-5e cable. An equalized

bandwidth of 120 MHz can be achieved for 100 meters of cable.

Low integrated output noise and offset voltage adjust make the

AD8128 an excellent choice for dc-coupled wideband RGB-

over-CAT-5 applications. For systems where the UTP cable is

longer than 100 meters, two AD8128s can be cascaded to

compensate for up to 200 meters of CAT-5/CAT-5e.

The AD8128 is available in a 3 mm × 3 mm 8-lead LFCSP and

is rated to operate over the extended temperature range of

−40°C to +85°C.

The AD8128 can be used as a standalone receiver/equalizer or

in conjunction with the AD8143, triple differential receiver, to

provide a complete low cost solution for receiving RGB over

UTP cable in such applications as KVM.

The AD8128 has three control pins for optimal CAT-5/CAT-5e

compensation. The equalized cable length is directly proportional

to the voltage applied to the V_PEAKpin, which controls the

amount of high frequency peaking. V_GAINadjusts the broadband

gain from 0 dB to 3 dB, compensating for the resistive cable

loss. V_OFFSETallows the output to be shifted by 2.5 V, adding

flexibility for dc-coupled systems.

Rev. 0

Information furnished by Analog Devices is believed to be accurate and reliable. However, no

responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other

rights of third parties that may result from its use. Specifications subject to change without notice. No

license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Trademarks and registeredtrademarks arethe property of their respective owners.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781.329.4700

Fax: 781.461.3113

www.analog.com

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中文翻译

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与AD8128相关器件

型号	品牌	获取价格	描述	数据表
AD8128ACPZ-R2	ADI	获取价格	CAT-5 Receiver with Adjustable Line Equalization
AD8128ACPZ-R7	ADI	获取价格	CAT-5 Receiver with Adjustable Line Equalization
AD8128ACPZ-RL	ADI	获取价格	CAT-5 Receiver with Adjustable Line Equalization
AD8129	ADI	获取价格	Low-Cost 270 MHz Differential Receiver Amplifiers
AD8129_05	ADI	获取价格	Low Cost 270 MHz Differential Receiver Amplifiers
AD8129AR	ADI	获取价格	Low-Cost 270 MHz Differential Receiver Amplifiers
AD8129ARM	ADI	获取价格	Low-Cost 270 MHz Differential Receiver Amplifiers
AD8129ARM	ROCHESTER	获取价格	SPECIALTY ANALOG CIRCUIT, PDSO8, MICRO, SO-8
AD8129ARM-REEL	ADI	获取价格	Low Cost 270 MHz Differential Receiver Amplifiers
AD8129ARM-REEL3	ADI	获取价格	Low-Cost 270 MHz Differential Receiver Amplifiers

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