Document
CMD252C4
4-8 GHz I/Q Mixer
Features
► Low conversion loss ► High isolation ► Image rejection: 30 dB ► Wide IF bandwidth ► Pb-free RoHs compliant 4x4 mm SMT package
Description
The CMD252C4 is a compact I/Q mixer in a leadless surface mount package that can be used as either an image reject mixer or a single sideband upconverter. The CMD252C4 utilizes two double balanced mixer cells and a 90 degree hybrid. An external IF hybrid is needed to complete the image rejection. The CMD252C4 is a much smaller alternative to higher cost hybrid image reject mixers and single sideband upconverter assemblies.
Functional Block Diagram
Electrical Performance – IF = 100 MHz, LO = +20 dBm , TA = 25 oC, F = 6 GHz
Parameter
Min Typ Max
Frequency Range, RF & LO
4–8
Frequency Range, IF
DC 2.4
Conversion Loss (as IRM)
6.5
Image Rejection
30
LO to RF Isolation
52
LO to IF Isolation
27
Input IP3
25
Units GHz GHz dB dB dB dB dBm
Unless otherwise noted, all measurements perform.