Datasheet > ZXFV4089_05

ZXFV4089_05

更新时间： 2024-11-16 03:07:19

品牌	Logo	应用领域
捷特科 - ZETEX		视频放大器
页数	文件大小	规格书
9页	179K
描述
VIDEO AMPLIFIER WITH DC RESTORATION

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中文翻译

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ZXFV4089_05 数据手册

ZXFV4089

VIDEO AMPLIFIER WITH DC RESTORATION

DEVICE DESCRIPTION

FEATURES AND BENEFITS

The ZXFV4089 is a DC restored video amplifier

(black-level clamp) in an 8pin SOIC package. It

integrates a high performance video amplifier with a

nullingsample andholdamplifier speciallydesignedto

provide brightness level stability.

•

Complete analog video dc level restoration system

•

Supports various TV systems

•

PAL, NTSC, SECAM

The input video signal is AC coupled to the main

amplifier and this AC coupling capacitor also acts as

the holding capacitor for the sample and hold

amplifier. This configuration reduces both pin count

and external components over traditional solutions.

•

Excellent video performance

•

0.08% differential gain

0.1° differential phase

•

30 MHz 0.1 dB bandwidth

Typically, during the back-porch interval of an analog

video waveform the sample and hold amplifier forces the

input of the video amplifier to the reference voltage. The

video waveform is now referenced to the new reference

voltage for the remainder of the line-scan interval.

•

210 MHz -3 dB bandwidth

400V/␮s slewrate

The video amplifier has been optimised for video

applications and as such drives back-terminated

75 ⍀ loads with gooddifferential gain and phase errors.

The current feedback architecture allows the

bandwidth to remain fixed over a wide range of gains,

and is set by two external resistors.

TTL/CMOS logic compatible HOLD input

Pin and function compatible with industry

standard EL4089

APPLICATIONS

The ZXFV4089 is specified for operation at ±5V and

over the -40°C to +85°C temperature range and is pin

compatible with the industry standard EL4089.

•

Black Level Clamp, providing stable intensity in

video systems such as:

•

cameras

ORDERING INFORMATION

image capture

video mixing

displays

Part Number

Container

Increment Part mark

ZXFV4089N8TA

ZXFV4089N8TC

Reel 7"

500

ZXFV4089

Reel 13"

2500

•

DC restoration of other high frequency signals

CONNECTION DIAGRAM

ISSUE 2 - SEPTEMBER 2005

SEMICONDUCTORS

12 3 4 5 6 7...9

中文翻译

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