Extron electronic PA 300s User Manual

Distribution Amplifiers

PA 300

Peaking amPlifier for rgBHV

n 350 MHz (-3 dB) RGB bandwidth

n Drives 1600x1200 UXGA resolution

signals up to 1,000 feet (300 meters)

n Continuously variable controls

for gain, low frequency and high frequency peaking

n Restores sync to TTL level

n HDTV tri-level sync compatibility

n Rack-mountable metal enclosure

n Internal international power supply

The Extron PA 300 is a peaking ampliﬁer capable of driving 1600x1200 UXGA

resolution signals up to 600 feet (185 meters) when used with Extron MHR or similar

cable, and up to 1,000 feet (300 meters) when used with higher performance

coaxial cable such as Extron RG6. It is ideal for a wide range of applications in

lecture halls, conference rooms, auditoriums, command and control centers, and

other installations where signal integrity must be maintained over long cable runs.

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DESCRIPTION SPECIfICaTIONS

LAN

Projector

Up to 600' MHR, or 1000’ RG6 (1600 x 1200 signal)

OUTPUT

INPUT

Extron PA 300

Peaking Amplifier

Extron CrossPoint 300 84 HV

Matrix Switcher

The Extron PA 300 Peaking Ampliﬁer offers an RGB video bandwidth of 350 MHz (-3dB) and is designed for systems requiring long cable runs of up to 1,000 feet (300 meters), where signal quality is a primary concern. The PA 300 maintains signal integrity with performance enhancing features such as variable gain, low and high frequency peaking, and support for bi-level and HDTV tri-level sync.

Variable gain control compensates for voltage variances, and allows sharp, bright image reproduction from virtually any signal source. Independent controls for low frequency and high frequency peaking compensate for smearing and detail loss, respectively, for superb image reproduction without regard to cable length or type.

The PA 300 restores the low level sync voltages found on many computers, as low as 1.8 volts, to normal TTL levels. This sync restoration prepares the signals to run down long cable runs and offers enhanced compatibility with a wide range of computers, display devices, and cable types.

fEaTuRES

n 350 MHz (-3 dB) RGB video bandwidth – Maintains signal integrity

over very long cable runs without visible resolution loss or smearing

n Drives high resolution signals long distances – Capable of driving

RGB video signals up to 600 feet (185 meters) with Extron MHR or similar cable, and up to 1,000 feet (300 meters) with Extron RG6 or similar cable

n Variable gain – Boosts overall signal voltage level to maintain image

brightness and compensate for voltage losses due to cable resistance.

n Separate low frequency and high frequency peaking – Eliminates

low frequency image smearing, improves high frequency detail by compensating for losses due to cable capacitance

n Restores sync to TTL level – Ensures that the monitor or projector

accurately locks to sync and displays a stable image

n Tri-level sync compatibility – Supports new HDTV sources with tri-

level sync signals

n Internal international power supply

aPPlICaTION DIagRam

Video

Gain ...................................................... -2 to +4 dB (x0.75 to x1.4), adjustable;

Peaking/equalization ............................... LF pot: 0 to 3 dB at 10 MHz, adjustable

Bandwidth ............................................. 350 MHz (-3 dB)

Output cable driving distance ................. Up to 600' (185 m) with Extron Mini HR cable

default = 0 dB

HF pot: 0 to 15 dB at 120 MHz, adjustable

Up to 1000' (300 m) with Extron RG6 or RG59 cable (tested with a 1600x1200, 60 Hz computer video signal)

Video input

Number/signal type ............................... 1 analog RGBHV, RGBS, RGsB, RsGsBs

Connectors ............................................ 5 female BNC

Nominal level ......................................... 0.7 Vp-p for RGB excluding sync

Minimum/maximum levels ..................... Analog: 0.4 V to 2.0 Vp-p with no offset at unity

gain

Impedance ............................................ 75 ohms

Horizontal frequency............................... 15 kHz to 150 kHz

Vertical frequency ................................... 40 Hz to 140 Hz

Return loss ............................................. -30 dB @ 0 to 5 MHz

DC offset (max. allowable) ...................... 1 V

Video output

Number/signal type ................................ 1 analog RGBHV, RGBS, RGsB

Connectors ............................................ 5 BNC female

Nominal level ......................................... 0.7 Vp-p for RGB excluding sync when gain and

peaking potentiometers are set to unity gain

(follows input)

Minimum/maximum levels ..................... Analog: 0.4 V to 2.0 Vp-p

Impedance ............................................ 75 ohms

Return loss ............................................. -32 dB @ 5 MHz

DC offset ............................................... ±5 mV with input at 0 offset

Sync

Input type .............................................. RGBHV, RGBS, RGsB, RsGsBs

Output type ............................................ RGBHV, RGBS, RGsB, RsGsBs

Input level

RGBHV, RGBS ......................................

RGsB, RsGsBs .......................................

Output level

RGBHV, RGBS ......................................

RGsB, RsGsBs .......................................... Analog: 0.3 Vp-p, follows input

TTL: 1.8 V to 5.0 Vp-p Analog: 0.3 Vp-p

TTL: 5.0 Vp-p, unterminated

Input impedance ................................... 510 ohms

Output impedance ................................ 50 ohms

Max. propagation delay .......................... H: 50 ns V: 110 ns

Max. rise/fall time ................................... H: 2.2 ns V: 2.1 ns

Polarity ................................................... RGBHV, RGBS: positive or negative (follows input)

RGsB, RsGsBs: negative

General

Power .................................................... 100 VAC to 240 VAC, 50/60 Hz, 3.6 watts,

Rack mount ............................................ Yes, with optional 1U rack shelf,

Enclosure type ........................................ Metal

Enclosure dimensions .............................. 1.7" H x 8.7" W x 6.0" D (1U high, half rack

Product weight ....................................... 1.5 lbs (0.7 kg)

Shipping weight .................................... 3 lbs (2 kg)

Vibration ................................................ ISTA 1A in carton (International Safe Transit

Listings ................................................... UL, CUL

Compliances ........................................... CE, FCC Class A, VCCI, AS/NZS, ICES

MTBF ...................................................... 30,000 hours

Warranty ................................................ 3 years parts and labor

NOTE: All nominal levels are at ±10%.

Model Version Description Part Number

PA 300 PA peaking ampliﬁer for RGBHV .............................. 60-755-01

Speciﬁcations are subject to change without notice.

internal, autoswitchable

part #60-190-01 or 60-604-01; or optional 1U,

6" deep rack shelf, part #60-190-10 or

60-604-10.

wide) 4.3 cm H x 22.1 cm W x 15.2 cm D (Depth

excludes connectors.)

Association)

06-05 68-1279-01 REV. A

Extron electronic PA 300s User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual