HMC628

Obsolete

BiCMOS 5-Bit Digital Variable Gain Amp. SMT, 50 - 800 MHz

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Overview

TTL/CMOS compatible serial, parallel or latched parallel control interface
High Output IP3: +35 dBm
(At all gain settings)
Wide Gain Control Range: 23 dB
Power-up State Selection
24 Lead 4x4 mm SMT Package: 16 mm²
Excellent State & Step Accuracy (±0.05 dB)

The HMC628LP4(E) is a digitally controlled variable gain amplifier which operates from 50 to 800 MHz, and can be programmed to provide anywhere from 8 dB attenuation, to 15 dB of gain, in 1 dB steps. The HMC628LP4(E) delivers noise figure of 5 dB in its maximum gain state, with output IP3 of up to +35 dBm in any state. The dual mode control interface is CMOS/ TTL compatible, and accepts either a three wire serial input or a 5 bit parallel word.

The HMC628LP4(E) also features a user selectable power up state and a serial output port for cascading other Hittite serial controlled components. The HMC628LP4(E) is housed in a RoHS compliant 4x4 mm QFN leadless package, and is available in three evaluation board configurations, depending on the application frequency.

Applications

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

Documentation

Data Sheet 1

HMC628 Data Sheet 04/22/2015

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

Software Resources

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Tools & Simulations

ADIsimRF

ADIsimRF is an easy-to-use RF signal chain calculator. Cascaded gain, noise, distortion and power consumption can be calculated, plotted and exported for signal chains with up to 50 stages. ADIsimRF also includes an extensive data base of device models for ADI’s RF and mixed signal components.

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