Datasheet > DA-2040S42NA

DA-2040S42NA

更新时间： 2022-12-17 13:34:48

品牌	Logo	应用领域
AAC		视频放大器
页数	文件大小	规格书
4页	174K
描述
Detector Log Video Amplifiers (DLVA)

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DA-2040S42NA 数据手册

Detector Log Video Amplifiers (DLVA)

The content of this specification may change without notification7/01/09

Features

DLVA

Advanced Microwave Hybrid Integrated

Circuits Technology

Detector Log Video Amplifiers (DLVA)

Frequency Range from 0.5 to 18GHz

Superior Log Linearity

Wide Dynamic Range

Wide Bandwidth

There are three basic typesof logarithmic amplifiers,

Detector-Log Video Amplifiers (DLVAs)

Successive Detection Logarithmic

Low Current Consumption

DC-Coupled DLVAs

Amplifiers True Log Amplifiers (TLAs)

High Performance

A detector log video amplifier (DLVA) is a type of

logarithmic amplifier in which the envelope of the

input RF signal is detected by a standard "linear"

diodedetector. The output of the detector is

compressed in the video amplifier section, making

input/output relationship similar to a logarithmic

conversion. In general, the DLVA offers the

High Reliability

High Repeatability

Compact Size And Light Weight

Custom Design Available

advantage of operating over the widest frequency

range, but at the sacrifice of dynamic range.

Applications

Radar Systems

Limited by the detecting range of square law of the

input diode detector, typical dynamic range for a

DLVA is approximately 40 dB.

Navigation Systems

Laboratory Measurement And Test Equipment

Telecommunications And Data Communications

Military And Instrumentation Systems

Other Commercial Applications

In quite a lot of usages, two log cascades are put in

parallel with a RF amplifier incorporated in time of

detection of the log cascade, so that the dynamic

range can be extended to approx.70dB.

The detected video sections of a DLVA can either be

AC coupled, DC coupled, or pseudo DC coupled.

Each has its advantages, depending upon the application

(i.e., CW operation, temperature compensation, etc.).

The basic configuration of a DLVA is simply a

detector diode to convert the RF energy into a DC

voltage followed by a video amplifier with a

logarithmic transfer function. The combination results

in a device which compresses a large RF signal

range into a narrow range of video voltage.

We have put considerable effort into designing a

DC coupled DLVA with very low baseline drift.

Employing a tunnel diode based detector circuit

coupled with a very stable DLVA, high-speed

miniature DC DLVA with good recovery

characteristics is available.

188 Technology Drive, Unit H, Irvine, CA 92618

Tel: 949-453-9888 Fax: 949-453-8889 Email: sales@aacix.com

American Accurate Components, Inc.

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