MAMX-011021 View Datasheet(PDF) - M/A-COM Technology Solutions, Inc.
Part Name
Description
MFG CO.
MAMX-011021 Datasheet PDF : 8 Pages
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MAMX-011021
High Linearity Mixer
5 - 35 GHz
Applications Section
System usage of this Mixer
The MAMX-011021 may be used in single ended, balanced, and image reject circuit configurations.
Rev. V1
Single Ended Mixer
Internally the MAMX-011021 is a single ended mixer. One disadvantage of a single ended mixer is the minimal
LO rejection at the IF and RF ports. Multiple MAMX-011021 mixers can be combined with baluns or 90° hybrids
to produce balanced mixers or image reject mixers. Generally these configurations will have an improved IP3
and greater rejection of unwanted frequencies.
Balanced Mixer
The balanced mixer will improve mixer performance by cancelling the LO at the IF output and cancelling RF
second order products. Linearity will be improved by using two mixers and RF loss will be limited to the 180°
hybrid and transformer insertion losses. LO drive requirements will be increased 3dB by the need to drive a
second mixer. Also, the 0° hybrid losses must be added to the LO drive. An LO buffer such as a MACOM
MAAM-011100 or MAAM-011109 may be used to allow a lower power LO source.
Image Reject Mixer
An image reject mixer can constructed from two MAMX-011021 mixers, a 0° hybrid and two 90° hybrids. The
connection of the IF 90° hybrid ports determines if the upper or lower sideband RF signal is passed to the IF and
the corresponding image is rejected. Similar to the balanced mixer a 3 dB LO power increase is required
because of the second mixer. Buffer amplifiers such as a MACOM MAAM-011100 or MAAM-011109 may be
used to provide the additional power.
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