Device Overview

General Description

The MMD-2050LSM is a MMIC millimeter wave doubler fabricated with GaAs Schottky diodes. This operates over a guaranteed 10 to 25 GHz input frequency range or a doubled output frequency range of 20 to 50 GHz. It features excellent conversion loss, superior isolations, and high harmonic suppressions across a broad bandwidth. Both surface mount QFN and evaluation boards are available.

Photo of MMD-2050LSM

Features

  • Low input drive
  • High fundamental rejection
  • Millimeter wave output frequencies
  • RoHS Compliant

Applications

  • High frequency synthesis
  • LO signal chain

Functional Block Diagram

Block Diagram

Part Ordering Options

Part NumberDescriptionPackageGreen StatusProduct LifecycleExport Classification
MMD-2050LSMGaAs MMIC Millimeter Wave DoublerQFN

REACH

RoHS

ReleasedEAR99
EVAL-MMD-2050LEvaluation Board, GaAs MMIC 20 - 50 GHz Millimeter Wave DoublerEVAL

REACH

RoHS

ReleasedEAR99

Table Of Contents

Revision History

Revision CodeRevision DateComment
-2019-11-01Datasheet Initial Release
A2020-01-01Updated Landing Pattern

Rev: A | Copyright © 2019 - 2020 Marki Microwave LLC.

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Port Configuration and Functions

Port Diagram

A bottom-up view of the MMD-2050LSM outline drawing is shown below. The MMD-2050L should only be used in the forward direction, with the input and output ports given in Port Functions.

Diagram of the port configuration for MMD-2050LSM

Port Functions

PortFunctionDescriptionDC Equivalent
Circuit
GNDGround SM package ground path is provided through the ground paddle.Equivalent circuit for the Ground
Pin 112F Output Pin 11 is DC open and AC matched to 50 Ohms from 20-50GHz.Equivalent circuit for the 2F Output
Pin 21F Input Pin 2 is diode coupled and AC matched to 50 Ohms from 10-25GHz.Equivalent circuit for the 1F Input

Rev: A | Copyright © 2019 - 2020 Marki Microwave LLC.

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Specifications

Absolute Maximum Ratings

The Absolute Maximum Ratings indicate limits beyond which damage may occur to the device. If these limits are exceeded, the device may be inoperable or have a reduced lifetime.

ParameterMaximum RatingUnit
Maximum Operating Temperature 100°C
Maximum Storage Temperature 125°C
Minimum Operating Temperature -55°C
Minimum Storage Temperature -65°C

Package Information

ParameterDetailsRating
ESD250 to < 500 VoltsHBM Class 1A
Dimensions-3 x 3 mm
Moisture Sensitivity Level-MSL 1

The Recommended Operating Conditions indicate the limits, inside which the device should be operated, to guarantee the performance given in Electrical Specifications Operating outside these limits may not necessarily cause damage to the device, but the performance may degrade outside the limits of the electrical specifications. For limits, above which damage may occur, see Absolute Maximum Ratings.

ParameterMinNominalMaxUnit
Ambient Temperature -5525100°C
Input Power 5-10dBm

Rev: A | Copyright © 2019 - 2020 Marki Microwave LLC.

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Electrical Specifications

The electrical specifications apply at TA=+25°C in a 50Ω system. Typical data shown is for the EVAL package doubler used in the forward direction with a +7 dBm sine wave input.

ParameterTest ConditionsMinimum
Frequency
(GHz)
Maximum
Frequency
(GHz)
MinTypMaxUnit
Conversion Loss 1Second Harmonic Output
- --12.515dB
Input Frequency Range `
- -10-25GHz
Input Power -- -5-10dBm
Isolation, 1F 2Input = 10 - 25 GHz
Output = 10 - 25 GHz
- --47-dB
Isolation, 3F 3Input = 10 – 17 GHz
Output = 30 - 51 GHz
- --58-dB
Isolation, 4F 4Input = 10 – 12.5 GHz
Output = 40 - 50 GHz
- --26-dB
Output Frequency Range -- -20-50GHz
Suppression, 1F 5Input = 10 – 25 GHz
Output = 10 - 25 GHz
- --34.5-dBc
Suppression, 3F 6Input = 10 – 17 GHz
Output = 30 - 51 GHz
- --46-dBc
Suppression, 4F 7Input = 10 – 12.5 GHz
Output = 40 - 50 GHz
- --14-dBc

[1][5][6][7] Suppressions and isolations measured with an input source with >60dBc (relative to fundamental input) harmonic suppression. Suppression is defined as the harmonic power relative to the 2F doubled output power.

[2][3][4] Isolation is defined as the harmonic power relative to the 1F fundamental input power.

Rev: A | Copyright © 2019 - 2020 Marki Microwave LLC.

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All typical performance data includes fixturing losses from the EVAL package. The actual DUT performs better than the displayed results, especially as the frequency increases.

Typical Performance Plots

2F Output Conversion Loss (dB) graph for MMD-2050LSM
2F Conversion Loss (dB)/1F Suppression vs. Input Power graph for MMD-2050LSM
2F Output Conversion Loss (dB) graph for MMD-2050LSM
2F Conversion Loss vs. Temperature graph for MMD-2050LSM
1F Output Suppression (dBc) graph for MMD-2050LSM
1F Harmonic Isolation (dB) graph for MMD-2050LSM
3F Output Suppression (dBc) graph for MMD-2050LSM
3F Harmonic Isolation (dB) graph for MMD-2050LSM

Rev: A | Copyright © 2019 - 2020 Marki Microwave LLC.

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4F Output Suppression (dBc) graph for MMD-2050LSM
4F Harmonic Isolation (dB) graph for MMD-2050LSM
Input Return Loss (dB) graph for MMD-2050LSM
Output Return Loss (dB) graph for MMD-2050LSM

Rev: A | Copyright © 2019 - 2020 Marki Microwave LLC.

7

Mechanical Data

Rev: A | Copyright © 2019 - 2020 Marki Microwave LLC.

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Rev: A | Copyright © 2019 - 2020 Marki Microwave LLC.

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Evaluation Board - Outline Drawing

Outline Drawing

Rev: A | Copyright © 2019 - 2020 Marki Microwave LLC.

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