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MT1110TR

75Ω BROADBAND AMPLIFIER ADVANCE DATA SHEET

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M I C R O T U N E™

MT1110 75Ω BROADBAND AMPLIFIER

ADVANCE DATA SHEET

CATV DISTRIBUTION APPLICATIONS

1 APPLICATIONS

• Set-top box

• Home gateways

• CATV Broadband distribution

• Cable splitters

• Laser drivers

• Optical receivers

2 FEATURES

• Cascadable 75Ω gain block

• 15 dB Gain

• 3 dB Noise figure

• Unconditionally stable

• 20 dB Input return loss

• 1 MHz to 2000 MHz 3 dB bandwidth

• +0.5 dB Gain tilt from 50 MHz to 850 MHz

• Typical OIP3 at 70 mA is 80 dBmV at 850 MHz

• Single +5V supply

• 70 mA Current consumption

• SOT-89 Package

• Industry standard pin-out for drop in compatibility

3 OVERVIEW

The Microtune 1110 (MT1110) broadband amplifier is a 75Ω internally matched

amplifier designed for broadband CATV distribution and infrastructure applications.

The MT1110 is built using high performance silicon-germanium (SiGe) technology

and offers 15 dB gain with an industry best noise figure of 3.0 dB. It achieves a third

order intercept point of 80 dBmV while drawing the industry’s lowest current, 70 mA,

from a single 5V supply.

Specifically designed for cable, data, and video applications, the MT1110 features a

unique integrated equalization circuit that adds 0.5 dB of positive tilt to the gain

slope to compensate for a commonly occurring frequency dependent attenuation

found in broadband applications.

The MT1110’s Darlington circuit topology produces high linearity with very low noise

while maintaining matched input and output impedances. Two AC coupling

capacitors, a bias resistor, and an optional inductor are the only external

components required.

The MT1110 is available in a SOT-89 package for the extended industrial

temperature range of -40°C to +85°C.

DS-00019

Rev 1.1 -- September 2001

Page 1 of 9

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