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CMD178C3 Mixer

11-21 GHz (X, Ku, K Band) Fundamental Mixer MMIC

The CMD178C3 is a general purpose double balanced mixer MMIC in a leadless surface mount (SMT) package that can be used for up- and downconverting applications between 11 and 20 GHz. The CMD178C3 has very high isolation to both the RF and IF ports due to the optimized balun structures, and can operate with an LO drive level as low as +9 dBm. The CMD178C3 mixer MMIC can easily be configured as an image reject mixer or single sideband modulator with external hybrids and power splitters.


  • High isolation
  • Low conversion loss
  • Passive double balanced topology
  • Pb-free RoHS compliant 3x3 mm SMT package
  • Positive gain slope
  • Wide IF bandwidth




Life Cycle

Released – for new design

Space Qualification

  • Ready for Space Screening


  • 3x3 mm ceramic QFN
  • RoHS Compliant
  • MSL Rating: MSL1
  • ESD Rating: Class 1A
Part DescriptionFund. Mixer
Freq. LO/RF (GHz)11 - 21
Freq. IF (GHz)DC - 6
LO drive (dBm)+13
Conver. Gain (dB)-6
LO-RF Isolation (dB)45
LO-IF Isolation (dB)45
Input IP3 (dBm)16
Package3x3 mm QFN

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300 Apollo Drive
Chelmsford, MA 01824
Phone: 978-467-4290
Fax: 978-467-4294

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Custom MMIC

300 Apollo Drive
Chelmsford, MA 01824
Phone: 978-467-4290
Fax: 978-467-4294

Terms and Conditions
Privacy Policy

©2006-2019 Custom MMIC
All rights reserved.

Custom MMIC Evaluation Boards
Evaluation Boards

In addition to offering delivery from stock on our own evaluation boards for nearly all our die and packaged devices, Custom MMIC has also put nearly 30% of our devices into the X-Microwave block system. This drop-in simulation, prototyping, and production system enables efficient and expedient microwave and millimeter-wave circuit development and testing.

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Custom MMIC Space Qualified MIMCs
Space Qualification

Custom MMIC strives to design all our MMIC devices in a manner such that they can be readily chosen for your space applications. We offer turnkey space screening / testing service when a device is categorized as "Ready for Space Screening" on our website. In some cases, our devices have already been "Space Qualified" or "Mission Specific" and are often available from stock. Our "Mission Specific" devices are screened based on custom applications where screening is derived from MIL requirements and tailored specific to customer needs. Just let us know when requesting price and delivery, or technical support, if your devices will be used in space.

Learn more about our commitment to space qualification »