Rev: - | Copyright © 2026 Marki Microwave LLC.

General Description

The MBAL-0214PSM is a GaAs passive MMIC balun in a DFN surface mount package. This high isolation balun features excellent amplitude and phase balance across its 2 to 14 GHz frequency range and offers a 2:1 impedance ratio. The compact DFN package allows for extreme miniaturization of SMT footprints. The MBAL-0214PSM is an excellent choice for balanced amplifiers, clock distribution, and higher order Nyquist sampling in analog to digital converters.

Features

  • 2:1 Impedance Ratio
  • 2 to 14 GHz Balun (Balanced to Unbalanced Transformer)
  • Insertion Loss as a Mode Converter, 2.1 dB Typical
  • Common Mode Rejection, 32 dB Typical

Functional Block Diagram

Block Diagram
Photo of MBAL-0214PSM

Electrical Performance Summary

ParameterTypUnit
Frequency Range2 to 14GHz
Insertion Loss as a Mode Converter 2.1dB
Phase Balance 1.9°
Amplitude Balance 0.3dB
Impedance Ratio 2:1-
Common Mode Rejection 32dB

Summary only – refer to the Electrical Specifications, Absolute Maximum Ratings, and Recommended Operating Range tables for complete details.

Part Ordering Options

Part NumberDescriptionPackageGreen StatusProduct LifecycleExport Classification
MBAL-0214PSM2 - 14 GHz MMIC Isolation BalunDFN

REACH

RoHS

ReleasedEAR99
EVB-MBAL-0214PEvaluation Board, 2-14 GHz Passive MMIC DFN Package BalunEVB

REACH

RoHS

ReleasedEAR99

Table Of Contents

Mixed Mode Scattering Parameters

Insertion Loss as a Mode Converter (dB) graph for MBAL-0214PSM
Common Mode Insertion Loss (dB) graph for MBAL-0214PSM
Unbalanced Port Return Loss (dB) graph for MBAL-0214PSM
Differential Port Return Loss (dB) graph for MBAL-0214PSM
Differential Return Loss given a Common Mode Input (dB) graph for MBAL-0214PSM
Common Mode Return Loss (dB) graph for MBAL-0214PSM

Measured data is de-embedded from fixture using AFR.

Typical Performance Scattering Parameters

Insertion Loss (dB) graph for MBAL-0214PSM
Return Loss (dB) graph for MBAL-0214PSM
Isolation between differential ports graph for MBAL-0214PSM
Amplitude Balance (dB) graph for MBAL-0214PSM
Phase Balance (°) graph for MBAL-0214PSM
Common Mode Rejection (dB) graph for MBAL-0214PSM

Measured data is de-embedded from fixture using AFR.

Specifications

Electrical Specifications

The electrical specifications apply at TA=+25°C in a 50Ω system. Min and Max limits are guaranteed at TA=+25°C.

ParameterTest ConditionsMinimum
Frequency
(GHz)
Maximum
Frequency
(GHz)
MinTypMaxUnit
Frequency Range-2 14---GHz
Insertion Loss as a Mode Converter Temp = 25°C
2 14-2.1-dB
Nominal Phase Shift Temp = 25°C
- --180-°
Common Port Return Loss Temp = 25°C
2 14-16-dB
Common Mode Return Loss Temp = 25°C
2 14-6-dB
Output Return Loss Temp = 25°C
2 14-13-dB
Isolation Temp = 25°C
2 14-11-dB
Amplitude Balance Temp = 25°C
2 14-0.3-dB
Phase Balance Temp = 25°C
2 14-1.9-°
Common Mode Rejection Temp = 25°C
2 14-32-dB
Impedance Temp = 25°C
- --50-Ω
Impedance Ratio -2 14-2:1--

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-1.3 x 2.0 mm
Moisture Sensitivity Level-MSL 1

Port Configuration and Functions

Port Diagram

An X-ray top-down view of the MBAL-0214PSM package outline drawing is shown below. The MMIC Baluns are passive reciprocal devices allowing either signal splitting or combining.

Diagram of the port configuration for MBAL-0214PSM

Port Functions

PortFunctionDescriptionDC Equivalent
Circuit
Ground PaddleGnd Ground paddle should be connected to RF groundEquivalent circuit for the Gnd
Pin 1Non-connect (NC) Pin 1 is not connected internally and should be tied to RF ground.Equivalent circuit for the Non-connect (NC)
Pin 2Common Pin 2 is the common input/output port. It is DC open to ground.Equivalent circuit for the Common
Pin 3Non-connect (NC) Pin 3 is not connected internally and should be tied to RF ground.Equivalent circuit for the Non-connect (NC)
Pin 4Input/Output 1 Pin 4 is an input/output port. It is DC open to ground.Equivalent circuit for the Input/Output 1
Pin 5Non-connect (NC) Pin 5 is not connected internally and should be tied to RF ground.Equivalent circuit for the Non-connect (NC)
Pin 6Input/Output 2 Pin 6 is an input/output port. It is DC open to ground.Equivalent circuit for the Input/Output 2

Mechanical Data

Outline Drawing

Download : Outline 2D Drawing Outline 3D Drawing Outline 3D STP

Outline Drawing

Evaluation Board

Evaluation Board - Outline Drawing

Outline Drawing

Revision History

Revision CodeRevision DateComment
-2026-02-24Initial Release

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