Extron electronics PA 250 Manuel utilisateur

250 MHz Bandwidth

15-150 kHz Compatible

Variable Level Control

Variable Peaking Control

1000 ft. (262 meters) Boost

Sync Conditioner

Sync Processor

Universal Compatibility

Long Line Driver

Rack Mountable

Metal Enclosure

Built-in Sync Stripper

Internal Power Supply

PA 250 - PEAKING AMPLIFIER

69-06

68-166-01

Rev. D

PPLICATION

EXTRON’s PA 250 is a long line peaking amplifier and sync condi-

tioner which is capable of driving RGB Video Signals up to 1000 feet.

As an inexpensive alternative to fiber optics with an RGB Video

Bandwidth of 250 MHz (-3dB), the PA 250 is designed for systems

requiring long cable runs where signal quality is a premium concern. By

simply connecting the PA 250 at the origin of the signal, a clean, strong

signal can be maintained throughout the cable run with performance

enhancing features to fit any application. Including features such as

Sync Stripping, Sync Combining and Image Sharpness Control, the PA

250 can replace what could take up to four other products to accomplish.

EATURES

■

250 MHz RGB Video Bandwidth

■

Peaking - This is similar to the sharpness control on a T.V. It is

used to manipulate the video signal to provide a cleaner, sharper

image. The peaking adjustment is actually compensating for mid

and high frequency RGB Video Bandwidth response in data

monitors and projectors, and for signal loss due to cable capacitance.

■

Boost Control - Selects the percentage of maximum signal boosting

capability. The Boost control allows for signal “driving” of up to

1000 feet depending on input signal frequency. Standard 15.75 kHz

Video (RGB) signals can be driven up to 1000 feet with VGA/MAC

and other mid frequency signals capable of going up to 600 feet.

The PA 1 250 can even drive SGI 60-100 kHz signals up to 350 feet

with good quality cable.

■

Level Control - Increases signal to a maximum level of 1.4 Volts.

■

Sync Combining - Combines horizontal and vertical sync signals

into a composite sync channel.

■

Sync Seperation - Seperates composite sync into seperate horizontal

and vertical sync.

PA 250 CONNECTION DIAGRAM

EATURES

■

Auto Sync Stripping - Strips sync from the red,green and blue

channels. The sync can be added back onto the green channel if

desired via a rear panel dip switch.

■

15-150 kHz horizontal frequency range

■

BNC connectors - For ease of system integration.

■

Rack Mountable - 1U, 1/2 rack width.

PECIFICATIONS

Input Signal

Video ...................................... Analog: .5 to 1.4 volts p-p

Sync ........................................ Sync on Green TTL (±)

Composite Sync TTL (±)

Seperate H&V Sync (±)

Sync on R,G & B: 0.3 volts negative

Output Signal

Video ...................................... Analog: .3 to 1.4 volts p-p

Sync ........................................ Sync on Green

Composite H & V Sync

Seperate H & V Sync

Frequency Compatibility

Horizontal .............................. 15-150 kHz

Vertical ................................... 40-140 Hz

RGB Video Bandwidth.................... 250 MHz (-3dB)

Impedence ........................................ Video: 75 ohms;

Sync: 50 ohms

Power Supply ................................... 115/230 VAC, 50/60 Hz (auto-switchable)

Dimensions ...................................... 9.75" W x 7" D x 1.75" H

25 W x 18 D x 9 H cm

Rack Mountable ............................... Yes

Shipping Weight .............................. 2 lb. 1 oz. (2.3 kg)

Warranty........................................... Two years, parts &labor

EXTRON ELECTRONICS/RGB SYSTEMS, INC.

1230 South Lewis Street, Anaheim, CA 92805

(800) 633-9876 (714) 491-1500 FAX (714) 491-1517

U.S.A.

EXTRON ELECTRONICS, EUROPE

Beeldschermweg 6C, 3821 AH Amersfoort

+31-33-453-4040 FAX +31-33-453-4050

The Netherlands

EXTRON ELECTRONICS, ASIA

41B Kreta Ayer Road, Singapore 089003

+65-226-0015 FAX +65-226-0019

Singapore

EXTRON ELECTRONIC INFORMATION

XTRON

WEB™: www.extron.com

XTRON

FAX™: (714) 491-0192

24-hour access—worldwide!

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