HMC258

Obsolete

HMC258 / HMC258LC3B

HMC258: sub harmonic mixer chip, 14 GHz to 21 GHz 

HMC258LC3B: sub harmonic mixer surface mount technology (SMT), 14.5 GHz to 19.5 GHz 

HMC258LM3: sub harmonic mixer SMT, 14 GHz to 20 GHz

Data Sheet Product Selection Table
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Overview

  • Integrated local oscillator (LO) amplifier: 0 dBm drive (HMC258)
  • Integrated LO amplifier: 0 dBm input (HMC258LC3B and HMC258LM3)
  • Sub harmonically pumped (×2) LO
  • High 2LO to RF isolation
    HMC258: 40 dB
    HMC258LC2B: >45 dB
    HMC258LM3: >40 dB
  • Die size (HMC258): 0.85 mm × 1.15 mm × 0.1 mm
  • No External Matching Required (HMC258LC3B)
  • RoHS compliant 3 mm × 3 mm ceramic SMT package (HMC258LC3B)
  • LM3 SMT package (HMC258LM3)

The HMC258 devices are sub-harmonically pumped (×2) single-ended monolithic microwave integrated circuit (MMIC) mixers with integrated LO amplifiers which can be used as upconverters or downconverters. The HMC258 devices are available in a chip (HMC258), an SMT leadless ceramic package (HMC258LC3B), and an SMT leadless chip carrier package (HMC258LM3). The HMC258 utilizes a GaAs metal semiconductor field effect transistor (MESFET) technology that results in a small overall chip area of 0.9 mm2. The 2LO to RF isolation is excellent, eliminating the need for additional filtering. The LO amplifier is a single bias (5 V) two stage design with only 0 dBm drive requirement.

A less stringent oscillator design is made possible by the low LO drive and sub harmonic nature of the HMC258 chip. All data is with the chip in a 50 Ω test fixture connected via 0.025 mm (1 mil) diameter wire bonds of minimal length less than 0.31 mm (<12 mils). The HMC258LC3B requires no external matching components, making it ideal for integrated subsystem applications. All data for the HMC258LM3 is with the nonhermetic, epoxy sealed LM3 packaged device mounted in a 50 Ω test fixture. Utilizing the HMC258LC3B or the HMC258LM3 eliminates the need for wire bonding, thereby providing a consistent connection interface for the customer.

Applications

  • Microwave point-to-point radios 
  • Very small aperture terminal (VSAT)
  • Satellite communications (SATCOM)
  • Test and measurement equipment 
  • Military and space 
  • 14 GHz and 20 GHz microwave radios (HMC258LM3)
HMC258
HMC258 / HMC258LC3B

HMC258: sub harmonic mixer chip, 14 GHz to 21 GHz 

HMC258LC3B: sub harmonic mixer surface mount technology (SMT), 14.5 GHz to 19.5 GHz 

HMC258LM3: sub harmonic mixer SMT, 14 GHz to 20 GHz

HMC258_fbl HMC258LC3B_fbl HMC258LM3_fbl
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Documentation

Data Sheet 2

Obsolete Data Sheet 1

Data Sheet

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

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Software Resources

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Tools & Simulations

S-Parameter 3

Evaluation Kits
EVAL-HMC258LC3B
HMC258LC3B Evaluation Board

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