Olson Technology OTA-1000 User Manual

OTA-1000

WIDEBAND LOW NOISE

PUSH-PULL AMPLIFIER

INSTRUCTION MANUAL

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025-000429 REV A 8/9/01

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Table of Contents

Introduction

Operation

Specifications

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Page 4

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INTRODUCTION

The OLSON TECHNOLOGY OTA-1000 is a high performance, wideband, low noise, push-pull general purpose
amplifier with a built-in 90VAC to 240VAC power supply.

The OTA-1000 is completely self-contained and is configured in a small (2.5 x 2.7 x 1.5 inch) machined-aluminum
housing. Holes are provided for optional mounting as may be required and this unit is powered through an industry­standard IEC-320 connector. A mating line cord is provided (USA standard 120VAC plug).

RF performance of the OTA-1000 is very good with CSO/CTB at >65dB below 77 output carriers at +40dBmV
and additional digital loading from 550MHz to 870MHz at 6dB below these 77 carriers.

The OTA-1000 has a –20dB output test point and has no adjustments for gain or tilt. Frequency response is <±
.75dB from 48MHz to 870MHz. Minimum gain to 1GHz is 22dB and this amplifier typically has a noise figure of
less than 4.5dB.

Possible applications of the OTA-1000 are many, including use on the test bench, as a laser transmitter driver,
distribution line or antenna amplification, etc.

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OPERATION

1. Apply the input signal(s) and AC power to the OTA-1000.

2. Connect a spectrum analyzer or signal level meter to the output and verify that the output levels do not exceed
the maximum ratings of the OTA-1000. If less than 77 channels are used with this amplifier, the output level can
be increased. Use standard de-rating formulas to determine the maximum allowable output level based on the
distortion specification for this unit and the number of channels in your application.

3. If the –20dB test point is used to test the output, or as an output, ensure that the main output is terminated in

75Ω.

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SPECIFICA TIONS

Input / Output Frequency......................................

Noise Figure.........................................................

Minimum Gain......................................................

Gain Variation.......................................................

Input / Output Return Loss....................................

Output Test Point..................................................

Test Point Return Loss..........................................

I.M. Distortion......................................................

Output Power For

1dB Gain Compression.........................................

RF Connectors.....................................................

Power Connector.................................................

Power Requirements.............................................

Operating Temperature Range...............................

48MHz to 1GHz

4.5dB typical
22dB (48MHz to 1GHz)
<+ .75dB (48MHz to 870MHz)
>15dB (48MHz 870MHz)
>10dB (870MHz to 1GHz)

-20dB
>15dB
CSO / CTB >65dB below 77
output carriers at +40dBmV
54MHz to 550MHz. Digital
loading at 6dB down from
550MHz to 870MHz.

+23dBm (typical)
Type F - In, Out, Test
IEC 320 male receptacle
90 VAC to 240 VAC @
50-60Hz, 5 watts max.

-40°C to +60°C

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