Rev: H | Copyright © 2013, 2019 - 2020, 2022 - 2023 Marki Microwave LLC.

General Description

The BAL-0006SMG is a broadband surface mount balun, hand-tuned for optimal phase and amplitude balance over a 500 kHz to 6 GHz bandwidth. It serves as an excellent choice for analog to digital converters, balanced receivers, baseband digital modulations, and signal integrity enhancement.

Features

  • 2:1 Impedance Ratio
  • 500 kHz to 6 GHz Balun (Balanced to Unbalanced Transformer)
  • Transforms 50 Ω Input to 100 Ω Differential (50 Ohm Single) Output
  • Tuned for Optimal Phase/Amplitude Balance

Functional Block Diagram

Block Diagram
Photo of BAL-0006SMG

Electrical Performance Summary

ParameterTypUnit
Frequency Range0.0005 to 6GHz
Insertion Loss as a Mode Converter 3.8dB
Phase Balance 0.4°
Amplitude Balance 0.1dB
Impedance Ratio 2:1-
Common Mode Rejection 45dB

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

Part Ordering Options

Part NumberDescriptionPackagePacking SizeGreen StatusProduct LifecycleExport Classification
BAL-0006SMGSURFACE-MOUNT BROADBAND BALUNSMG-

REACH

RoHS

ReleasedEAR99
EVAL-BAL-0006 Evaluation Board, High Power 0.0005 - 6 GHz Broadband BalunEVAL-

Non-RoHS

ReleasedEAR99
BAL-0006SMG-TRTape and Reel, SURFACE-MOUNT BROADBAND BALUNSMG13"

REACH

RoHS

ReleasedEAR99

Table Of Contents

Time Domain Performance Plots

Oscilloscope measurements of the BAL-0006SMG with a 6 Gb/s PRBS pattern. Bit pattern is measured with a 27-1 PRBS input demonstrating extremely good pulse fidelity for both inverted and non-inverted output. Eye diagrams are taken with a 231-1 PRBS input demonstrating minimal eye distortion/closure afforded by the extremely low frequency operation of the balun (<500 kHz).

Oscilloscope Measurements of the BAL-0006SMG with a 6 Gb/s PRBS pattern. graph for BAL-0006SMG

Mixed Mode Scattering Parameters

Mixed mode scattering parameters are used to characterize differential circuits. For baluns, this means that the 0° and 180° ports become a single 100Ω differential port and the common port remains the same 50Ω common port. The two-port s-parameters of the balun are then characterized based on differential (d), common mode (c), or single-ended (s) signals. For example: Sds12 is the differential output response given a single ended input.

Insertion Loss as a mode converter graph for BAL-0006SMG
Insertion Loss as a mode converter across 50 units graph for BAL-0006SMG
Return Loss Of A Common Mode Signal graph for BAL-0006SMG
Return loss of a differential signal graph for BAL-0006SMG
Reflection converted between differential and common modes graph for BAL-0006SMG
Insertion loss of a common mode signal graph for BAL-0006SMG
Unbalanced port return loss graph for BAL-0006SMG
Low frequency Insertion loss as a mode converter across 10 units graph for BAL-0006SMG

Typical Performance Scattering Parameters

Return loss for common port and output ports graph for BAL-0006SMG

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-0.0005 6---GHz
VSWR -0.0005 6-1.5--
Isolation -0.0005 6-8-dB
Impedance Ratio -- --2:1--
Risetime/Falltime 1-0.0005 6-17-ps
Nominal Phase Shift -0.0005 6-180-°
Amplitude Balance -0.0005 0.002-0.1-dB
Amplitude Balance -0.002 0.006-0.13dB
Amplitude Balance -0.006 6-0.41.2dB
Phase Balance -0.0005 0.002-0.9-°
Phase Balance -0.002 0.006-0.412°
Phase Balance -0.006 6-310°
Common Mode Rejection -0.0005 0.002-39-dB
Common Mode Rejection -0.002 0.0061645-dB
Common Mode Rejection -0.006 62030-dB
Insertion Loss as a Mode Converter -0.0005 0.002-3.9-dB
Insertion Loss as a Mode Converter -0.002 0.006-3.86.5dB
Insertion Loss as a Mode Converter -0.006 6-45.5dB

[1] Specified as 90%/10%. Calculated from Tau_balun2 = (Tau_out2 – Tau_in2)

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
RF Power Handling 1W

Package Information

ParameterDetailsRating
WeightPackage name: SMG0.24g
Dimensions-8.13 x 8.13 mm
Moisture Sensitivity Level-MSL 1

Port Configuration and Functions

Port Functions

PortFunctionDescriptionDC Equivalent
Circuit
Common Port / In (Unbalanced)RF Input The common port is DC short to ground.Equivalent circuit for the RF Input
Out 1 / 0° Port (Balanced)0° Port The 0° port is DC short to ground.Equivalent circuit for the 0° Port
Out 2 / 180° Port (Balanced)180° Port The 180° port is DC short to ground.Equivalent circuit for the 180° Port

Mechanical Data

Outline Drawing

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

Outline Drawing

Substrate material is 8-mil thick Rogers 4003, 1 Oz Electrodeposited Cu. I/O Pads & Ground Plane Finish is Gold Flash, 5 to 10 µinches, over Electroplated Nickel, 100-200 µ-inches, over Cu.

Evaluation Board

Evaluation Board - Electrical Specification

ParameterTest ConditionsMinimum
Frequency
(GHz)
Maximum
Frequency
(GHz)
MinTypMaxUnit
Frequency Range-- ----GHz
Impedance Ratio -- --2:1--

Evaluation Board - Outline Drawing

Outline Drawing

Revision History

Revision CodeRevision DateComment
-2013-02-01Datasheet initial Release
A2019-03-01Evaluation board outline added
B2019-10-01Mixed Mode Scattering Parameters added
C2020-04-01Unit Spread Graphs Added
D2020-07-01Update Specs table & low frequency Ssd21 plot added
E2020-10-01Update Specs table
F2022-05-01Max DC current update, Ground Plane Finish Update
G2022-11-01Banded Electrical Specifications Added
H2023-12-21Updated Specs table to add sub-banding on certain specifications.

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