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MD-149 - Double-Balanced Mixer

Download the MD-149 datasheet PDF. This datasheet also covers the MD-149-MA variant, as both devices belong to the same double-balanced mixer family and are provided as variant models within a single manufacturer datasheet.

General Description

Transformers convert the LO and RF paths to balanced lines connecting to a medium barrier, Schottky diode ring quad.

These transformers help provide excellent isolation between ports.

Conversion loss is low.

Key Features

  • Over Two-Decade Frequency Range.
  • Conversion Loss: 6 dB Typical Midband.
  • LO-RFIsolation: 40 dB Typical Midband.
  • Fully Hermetic Package.
  • Impedance: 50 Ohms Nominal.
  • Maximum Input Power: 300 mW Max, Derated to 85°C @ 3.2 mW/°C.
  • IF Port Current: 50 mA Max.
  • MIL-STD-883 Screening Available.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (MD-149-MA-COM.pdf) that lists specifications for multiple related part numbers.

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Other Datasheets by MACOM Technology Solutions

Part Number Description
MD-140 Double-Balanced Mixer
MD-148 Double-Balanced Mixer
MD-108 Double-Balanced Mixer
MD-123 Double-Balanced Mixer
MD-124 Double-Balanced Mixer

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
MD- / MDS-149 Double-Balanced Mixer, 10 - 1500 MHz Features  Over Two-Decade Frequency Range  Conversion Loss: 6 dB Typical Midband  LO-RFIsolation: 40 dB Typical Midband  Fully Hermetic Package  Impedance: 50 Ohms Nominal  Maximum Input Power: 300 mW Max, Derated to 85°C @ 3.2 mW/°C  IF Port Current: 50 mA Max.  MIL-STD-883 Screening Available Description Transformers convert the LO and RF paths to balanced lines connecting to a medium barrier, Schottky diode ring quad. These transformers help provide excellent isolation between ports. Conversion loss is low. The direct connection of the IF port to the diode quad allows these mixers to be used as phase detectors and bi-phase modulators. SF-1 (MDS-149) FP-2 (MD-149) Rev. V4 Pin Configuration (MD-149) Pin No.