Device Overview

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General Description

The MMIQ-0205HSM is a miniaturized, surface-mount multi-octave 1.75-5.0 GHz IQ mixer. It features matched double balanced mixers connected with an integrated LO hybrid and RF power divider. It can be used for either upconversion or downconversion. Applications include communications or radar systems with advanced digital modulation formats and phase modulated signals, test and measurement, or electronic warfare. Image reject or single sideband modulation with excellent suppression is possible with use of an external IF quadrature (90°) hybrid.

Photo of MMIQ-0205HXA

Features

  • CAD Optimized for Superior Isolation, Spurious Response, and Image Rejection/Sideband Suppression
  • Broadband Performance
  • Excellent Unit-to-Unit Repeatability
  • Fully nonlinear software models available with Marki Circuit Models for Microwave Office
  • RoHS Compliant

Applications

N/A

Functional Block Diagram

Block Diagram

Part Ordering Options

Part NumberDescriptionConnectorsGreen StatusProduct LifecycleExport Classification
MMIQ-0205HXAMMIC Double-Balanced I/Q MixerStandard

REACH

RoHS

ReleasedEAR99

Table Of Contents

Rev: - | Copyright © 2022 - 2026 Marki Microwave LLC.

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Port Configuration and Functions

Port Functions

PortFunctionConnector TypeDescriptionDC Equivalent
Circuit
Pin 12Q -The I/Q ports are DC coupled to the diodes. Blocking capacitor is optional.Equivalent circuit for the Q
Pin 22LO -The LO port is DC open and AC matched to 50 Ohms from 1.75 to 5 GHz. Blocking capacitor is optional.Equivalent circuit for the LO
Pin 29I -The I/Q ports are DC coupled to the diodes. Blocking capacitor is optional.Equivalent circuit for the I
Pin 4RF -The RF port is DC short to ground and AC matched to 50 Ohms from 1.75 to 5 GHz. Blocking capacitor is optional.Equivalent circuit for the RF

Rev: - | Copyright © 2022 - 2026 Marki Microwave LLC.

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Specifications

Absolute Maximum Ratings

ParameterMaximum RatingUnit
DC Current 130mA
DC Current 230mA
DC Current 30mA
Maximum Operating Temperature 100°C
Maximum Storage Temperature 125°C
Minimum Operating Temperature -55°C
Minimum Storage Temperature -65°C
RF Power Handling (RF+LO), 100°C 23dBm
RF Power Handling (RF+LO), 25°C 26dBm

[1][2] Application of DC current has been known to damage mixer diodes. Any application of DC current >30 mA could cause field damage and void the warranty.

ParameterMinNominalMaxUnit
LO Input Power 14-20-

Rev: - | Copyright © 2022 - 2026 Marki Microwave LLC.

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Electrical Specifications

Specifications guaranteed from -55 to +100°C, measured in a 50Ω system.

ParameterTest ConditionsMinimum
Frequency
(GHz)		 Maximum
Frequency
(GHz)		MinTypMaxUnit
Conversion Loss 1LO=RF=1.75-5 GHz, IF=DC-2.0 GHz
1.75 5-810.5dB
Image Rejection -- --33-dBc
Input IP3 2LO=RF=1.75-5 GHz, IF=DC-2.0 GHz
1.75 5-20-dBm
Input P1dB 3LO=RF=1.75-5 GHz, IF=DC-2.0 GHz
1.75 5-12-dBm
I/Q Amplitude Balance LO=RF=1.75-5 GHz, IF=DC-2.0 GHz
1.75 5-0.16-dB
Phase Balance LO=RF=1.75-5 GHz, IF=DC-2.0 GHz
1.75 5-3-°
IF Frequency Range -- -0-2GHz
LO Frequency Range -- -1.75-5GHz
LO-RF Isolation -- --60-dB
RF Frequency Range -- -1.75-5GHz

[1][2][3] Combined IF with Test Hybrid

Rev: - | Copyright © 2022 - 2026 Marki Microwave LLC.

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Typical Performance

Combined-IF Downconversion Loss: 60 MHz IF (dB) graph for MMIQ-0205HXA
Combined-IF Downconversion Image Rejection: 60 MHz IF (dB) graph for MMIQ-0205HXA
LO to RF Isolation (dB) graph for MMIQ-0205HXA
LO to IF Isolation (dB) graph for MMIQ-0205HXA
Combined-IF Downconversion Loss vs. LO Power: 60 MHz IF (dB) graph for MMIQ-0205HXA
I/Q Port Conversion Loss: 60 MHz IF (dB) graph for MMIQ-0205HXA
Combined-IF Upconversion Loss: 60 MHz IF (dB) graph for MMIQ-0205HXA
Combined-IF Upconversion Sideband Suppression: 60 MHz IF (dB) graph for MMIQ-0205HXA

Rev: - | Copyright © 2022 - 2026 Marki Microwave LLC.

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Port "I" to Port "Q" IF Amplitude Match: 60 MHz IF (dB) graph for MMIQ-0205HXA
Port "I" to Port "Q" IF Quad. Phase Deviation: 60 MHz IF (Degrees) graph for MMIQ-0205HXA
Port "I" Conversion Loss vs. LO Power: 60 MHz IF (dB) graph for MMIQ-0205HXA
Port "Q" Conversion Loss vs. LO Power: 60 MHz IF (dB) graph for MMIQ-0205HXA
High Side LO Relative IF Response (dB): 2 GHz RF graph for MMIQ-0205HXA
High Side LO Port "I" Downconversion Loss (dB) graph for MMIQ-0205HXA
Low Side LO Relative IF Response (dB): 5 GHz RF graph for MMIQ-0205HXA
Low Side LO Port "I" Downconversion Loss (dB) graph for MMIQ-0205HXA

Rev: - | Copyright © 2022 - 2026 Marki Microwave LLC.

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Input IP3: 60 MHz Combined IF (dBm) graph for MMIQ-0205HXA
Output IP3: 60 MHz Combined IF (dBm) graph for MMIQ-0205HXA
Conv. Comp. with a +10 dBm RF Input: 60 MHz Combined IF (dB) graph for MMIQ-0205HXA
Conv. Comp. with +13 dBm RF Input: 60 MHz Combined IF (dB) graph for MMIQ-0205HXA
RF to IF Isolation (dB) graph for MMIQ-0205HXA
IF Return Loss (dB) graph for MMIQ-0205HXA
RF Return Loss (dB) graph for MMIQ-0205HXA
LO Return Loss (dB) graph for MMIQ-0205HXA

Rev: - | Copyright © 2022 - 2026 Marki Microwave LLC.

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2xLO Harmonic to RF Isolation (dB) graph for MMIQ-0205HXA
2xLo Harmonic to IF Isolation (dB) graph for MMIQ-0205HXA
3xLO Harmonic to RF Isolation (dB) graph for MMIQ-0205HXA
3xLO Harmonic to IF Isolation (dB) graph for MMIQ-0205HXA
2RF x 2LO Spurious Suppression (dBc) -10 dBm IF Input graph for MMIQ-0205HXA
2IF x 1LO Spurious Suppression (dBc) -10 dBm IF input graph for MMIQ-0205HXA

Rev: - | Copyright © 2022 - 2026 Marki Microwave LLC.

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Mechanical Data

Outline Drawing

Download : Outline 2D Drawing

Outline Drawing

Rev: - | Copyright © 2022 - 2026 Marki Microwave LLC.

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Evaluation Board - Performance Data

ParameterTest ConditionsFrequency Range (GHz)MinTypMaxUnit
RF Frequency Range--1.75-5GHz
Image Rejection---33-dBc
IF Frequency Range--0-2GHz
LO-RF Isolation---60-dB
LO Frequency Range--1.75-5GHz

Rev: - | Copyright © 2022 - 2026 Marki Microwave LLC.

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