Device Overview

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General Description

The MM1-1850S is a high linearity passive double balanced MMIC mixer. The S diode offers superior 1 dB compression, two tone intermodulation performance, and spurious suppression to other GaAs MMIC mixers. It features excellent conversion loss, superior isolations and spurious performance across a broad bandwidth, in a miniature form factor. Accurate, nonlinear simulation models are available for Microwave Office® through the Marki Microwave PDK. The MM1-1850S is available as a wire bondable chip or an SMA connectorized package. The MM1-1850S is a superior alternative to Marki Microwave carrier and packaged M9 mixers.

Photo of MM1-1850SCH-2

Features

  • Compact Chip Style Package (0.058” x 0.046”x0.004”)
  • CAD Optimized for Superior Isolation and Spurious Response
  • Broadband Performance
  • Excellent Unit-to-Unit Repeatability
  • Fully nonlinear software models available with Marki PDK for Microwave Office®
  • RoHS Compliant

Applications

N/A

Functional Block Diagram

Block Diagram

Part Ordering Options

Part NumberDescriptionPackageConnectorsGreen StatusProduct LifecycleExport Classification
MM1-1850SSGaAs DOUBLE-BALANCED MIXERSStandard

REACH

RoHS

ReleasedEAR99
MM1-1850SCH-2GaAs DOUBLE-BALANCED MIXERCH-

REACH

RoHS

ReleasedEAR99

Table Of Contents

Revision History

Revision CodeRevision DateComment
A2022-12-01Updated Port Definitions

Rev: A | Copyright © 2022 Marki Microwave LLC.

2

Port Configuration and Functions

Port Diagram

Diagram of the port configuration for MM1-1850SCH-2

Port Functions

Configuration A

PortFunctionDescriptionDC Equivalent
Circuit
Port 1RF Port 1 is DC open and AC matched to 50 Ohms from 18 to 50 GHz. Blocking capacitor is optional.Equivalent circuit for the RF
Port 2LO Port 2 is DC open and AC matched to 50 Ohms from 18 to 50 GHz. Blocking capacitor is optional.Equivalent circuit for the LO
Port 3IF Port 3 is DC coupled to the diodes. Blocking capacitor is optional.Equivalent circuit for the IF

Rev: A | Copyright © 2022 Marki Microwave LLC.

3

Configuration B

PortFunctionDescriptionDC Equivalent
Circuit
Port 1LO Port 1 is DC open and AC matched to 50 Ohms from 18 to 50 GHz. Blocking capacitor is optional.Equivalent circuit for the LO
Port 2RF Port 2 is DC open and AC matched to 50 Ohms from 18 to 50 GHz. Blocking capacitor is optional.Equivalent circuit for the RF
Port 3IF Port 3 is DC coupled to the diodes. Blocking capacitor is optional.Equivalent circuit for the IF

Rev: A | Copyright © 2022 Marki Microwave LLC.

4

Specifications

Absolute Maximum Ratings

ParameterMaximum RatingUnit
Maximum Operating Temperature 100°C
Maximum Storage Temperature 125°C
Minimum Operating Temperature -55°C
Minimum Storage Temperature -65°C
Port 3 DC Current 22.8mA
RF Power Handling (RF+LO), 100°C 24dBm
RF Power Handling (RF+LO), 25°C 28dBm

Package Information

ParameterDetailsRating
Dimensions-1.48 x 1.18 mm
ParameterMinNominalMaxUnit
LO Input Power 17-23-

Rev: A | Copyright © 2022 Marki Microwave LLC.

5

Electrical Specifications

Specifications guaranteed from -55 to +100°C, measured in a 50Ω system. Specifications are shown for Configurations A (B). All bare die are 100% DC tested and 100% visual inspected. RF testing is performed on a sample basis to verify conformance to datasheet guaranteed specifications. Consult factory for more information.

ParameterPort ConfigurationTest ConditionsMinTypMaxUnit
Conversion Loss ALO/RF=18-50GHz
IF=DC-20GHz
-8.5-dB
Input IP3 ALO/RF=18-50GHz
IF=DC-20GHz
LO drive level=18-23dBm
-25-dBm
Input P1dB ALO/RF=18-50GHz
IF=DC-20GHz
LO drive level=18-23dBm
-14-dBm
LO-RF Isolation A--43-dB
Conversion Loss BLO/RF=18-50GHz
IF=DC-20GHz
-8.5-dB
Input IP3 BLO/RF=18-50GHz
IF=DC-20GHz
LO drive level=17-23dBm
-25-dBm
Input P1dB BLO/RF=18-50GHz
IF=DC-20GHz
LO drive level=17-23dBm
-14-dBm
IF Frequency Range --0-20GHz
LO Frequency Range --18-50GHz
RF Frequency Range --18-50GHz

Rev: A | Copyright © 2022 Marki Microwave LLC.

6

Typical Performance

MM1-1850 graph for MM1-1850SCH-2
Tuner Conversion Loss (dB) graph for MM1-1850SCH-2
Input Tuner IP3: 24 GHz RF Output (dBm) graph for MM1-1850SCH-2
Output Tuner IP3: 24 GHz RF Output (dBm) graph for MM1-1850SCH-2
Conversion Loss: 100 MHz IF (dB) graph for MM1-1850SCH-2
LO to RF Isolation (dB) graph for MM1-1850SCH-2
Low Side LO Conversion Loss (dB) graph for MM1-1850SCH-2
Low Side LO Conversion Loss (dB) graph for MM1-1850SCH-2

Rev: A | Copyright © 2022 Marki Microwave LLC.

7

Input IP3: 100 MHz IF (dBm) graph for MM1-1850SCH-2
Output IP3: 100 MHz IF (dBm) graph for MM1-1850SCH-2
Relative IF Response (dB) graph for MM1-1850SCH-2
Relative IF Response (dB) graph for MM1-1850SCH-2
LO to IF Isolation (dB) graph for MM1-1850SCH-2
RF to IF Isolation (dB) graph for MM1-1850SCH-2
RF Return Loss (dB) graph for MM1-1850SCH-2
Low Level LO Return Loss (dB) graph for MM1-1850SCH-2

Rev: A | Copyright © 2022 Marki Microwave LLC.

8

IF Return Loss (dB) graph for MM1-1850SCH-2
IF Return Loss (dB) graph for MM1-1850SCH-2
Even LO Harmonic to RF Isolation (dB) graph for MM1-1850SCH-2
Even LO Harmonic to IF Isolation (dB) graph for MM1-1850SCH-2
2IF x 0LO Spurious Suppression (dBc) -10 dBm IF Input graph for MM1-1850SCH-2
3IF x 0LO Spurious Suppression (dBc) -10 dBm IF Input graph for MM1-1850SCH-2

Rev: A | Copyright © 2022 Marki Microwave LLC.

9

MM1-1850SS - Typical Performance Plots

Performance plots for the connectorized module are shown for measurements where directly probed measurements of the die are unavailable. Note that the following measurements include losses from connectors and microstrip traces.

Tuner Operation graph for MM1-1850SS
Tuner Conversion Loss (dB) graph for MM1-1850SS
Input Tuner IP3: 24 GHz RF Output (dBm) graph for MM1-1850SS
Output Tuner IP3: 24 GHz RF Output (dBm) graph for MM1-1850SS
Conversion Loss: 100 MHz IF (dB) graph for MM1-1850SS
LO to RF Isolation (dB) graph for MM1-1850SS
Low Side LO Conversion Loss (dB) graph for MM1-1850SS
Low Side LO Conversion Loss (dB) graph for MM1-1850SS

Rev: A | Copyright © 2022 Marki Microwave LLC.

10

Input IP3: 100 MHz IF (dBm) graph for MM1-1850SS
Output IP3: 100 MHz IF (dBm) graph for MM1-1850SS
Relative IF Response (dB) graph for MM1-1850SS
Relative IF Response (dB) graph for MM1-1850SS
LO to IF Isolation (dB) graph for MM1-1850SS
RF to IF Isolation (dB) graph for MM1-1850SS
RF Return Loss (dB) graph for MM1-1850SS
Low Level LO Return Loss (dB) graph for MM1-1850SS

Rev: A | Copyright © 2022 Marki Microwave LLC.

11

IF Return Loss (dB) graph for MM1-1850SS
IF Return Loss (dB) graph for MM1-1850SS
Even LO Harmonic to RF Isolation (dB) graph for MM1-1850SS
Even LO Harmonic to IF Isolation (dB) graph for MM1-1850SS
2RF x 2LO Spurious Suppression (dBc) -10 dBm RF Input graph for MM1-1850SS
2IF x 1LO Spurious Suppression (dBc) -10 dBm IF input graph for MM1-1850SS
2IF x 0LO Spurious Suppression (dBc) -10 dBm IF Input graph for MM1-1850SS
3IF x 0LO Spurious Suppression (dBc) -10 dBm IF Input graph for MM1-1850SS

Rev: A | Copyright © 2022 Marki Microwave LLC.

12

Application Circuit

Application Circuit for MM1-1850SCH-2

Rev: A | Copyright © 2022 Marki Microwave LLC.

13

Mechanical Data

Outline Drawing

Download : Outline 2D Drawing

Outline Drawing

Rev: A | Copyright © 2022 Marki Microwave LLC.

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