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Microlithic IQ mixers offer superior bandwidth to any chip format IQ mixers available in the world. Unlike competing octave bandwidth products, the MLIQ mixers offer up to 9:1 bandwidth in a single package. These mixers have superior amplitude and phase balance, leading to excellent image rejection. The applications are limitless. An IQ mixer is a special mixer that has quadrature IF outputs. It is different from an IR/SSB mixer because it put data in both sidebands around the LO, but with different phase such that the two data signals can be retrieved independent of each other. The I and Q inputs to the mixer will show up 90° out of phase with each other on the RF side, and can then be retrieved using another IQ mixers.
The MLIQ-0218SM is the same chip as the MLIQ-0218, packaged into a convenient surface mount package. 

Electrical Specifications - Specifications guaranteed from -55 to +100°C, measured in a 50Ω system.
Parameter LO RF IF Min Typ Max Diode Option1
  (GHz) (GHz) (GHz) LO drive level (dBm)
Conversion Loss (dB) 2-18 DC-2   8.5 11.5  
(Combined IF with Test Hybrid) 2-3.5   10.5 13.5  
Image Rejection (dB) (Combined IF with Test Hybrid)     See Plots    
I/Q Amplitude Balance (dB)     0.21    
I/Q Quadrature Phase Balance (Degrees)     5    
Isolation (dB)          
LO-RF     See    
LO-IF     Plots    
Input 1 dB Compression (dBm)     +8   L (+11 to +18)
      +13   I (+18 to +24)
Input Two-Tone Intercept (dBm)     +17   L (+11 to +18)
      +23   I (+18 to +24)
1Contact factory for other diode options.




ModelDiode OptionI Port Configuration
MLIQ-0218LSM-2L (+11 to +18 dBm LO drive)-2
MLIQ-0218ISM-2I (+18 to +24 dBm LO drive)-2

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