HMC742

Obsolete

6-Bit Digital Variable Gain Amplifier SMT, 0.5 - 4 GHz

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Overview

-19 to 12.5 dB Gain Control in 0.5 dB Steps
Power-up State Selection
High Output IP3: +39 dBm
TTL/CMOS Compatible Serial,
Parallel, or Latched Parallel Control

±0.25 dB Typical Gain Step Error
Single +5V Supply
32 Lead 5 x 5 mm SMT Package: 25 mm²

The HMC742 is a digitally controlled variable gain amplifier which operates from 0.5 GHz to 4 GHz, and can be programmed to provide from -19 dB attenuation, to 12.5 dB of gain, in 0.5 dB steps. The HMC742 delivers noise figure of 4 dB in its maximum gain state, with output IP3 of up to +39 dBm in any state. The dual mode gain control interface accepts either a three-wire serial input or a 6 bit parallel word. The HMC742 also features a user selectable power up state and a serial output for cascading other serially controlled Hittite components. The HMC742 is housed in an RoHS compliant 5x5 mm QFN leadless package, and requires minimal external components.

Applications

Cellular/3G Infrastructure
WiBro / WiMAX / 4G
Microwave Radio & VSAT
Test Equipment and Sensors
IF & RF Applications

Suggested Replacement Parts

0.5 dB LSB GaAs MMIC 6-Bit Digital Variable Gain Amplifier SMT, 0.07 - 4 GHz

Documentation

Obsolete Data Sheet 1

HMC742 Data Sheet 09/11/2015

This is the most up-to-date revision of the Data Sheet.

Software Resources

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Hardware Ecosystem

Parts	Product Life Cycle	Description
HMC742A	RECOMMENDED FOR NEW DESIGNS	0.5 dB LSB GaAs MMIC 6-Bit Digital Variable Gain Amplifier SMT, 0.07 - 4 GHz

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