Rev: - | Copyright © 2016 Marki Microwave LLC.

General Description

The EQ3-26 passive equalizer is an ideal solution for compensating for low pass filtering effects in RF/microwave and high speed digital systems. This equalizer provides positive slope from DC to 26.5 GHz with a DC attenuation value of 3 dB and a 50-ohm match maintained over the entire operating range.

Features

  • 26 Gb/s Equalizer
  • Matched 50 Ohm Impedance on Input and Output Ports

Functional Block Diagram

Block Diagram

Electrical Performance Summary

ParameterTypUnit
Frequency Range0 to 26.5GHz
Return Loss 20dB
Insertion Loss 0.8dB
Insertion Loss at DC 3dB

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

Part Ordering Options

Part NumberDescriptionConnectorsGreen StatusProduct LifecycleExport Classification
EQ3-26Equalizer (26 Gb/s)Standard

Non-RoHS

ReleasedEAR99

Table Of Contents

Typical Performance Plots

Insertion Loss graph for EQ3-26
Insertion loss with lossy cable graph for EQ3-26
RFC Return Loss vs Temperature graph for EQ3-26
Group Delay graph for EQ3-26

Time Domain Performance Plots

Oscilloscope measurements of the EQ3-26 with a 28 Gb/s PRBS pattern. Bit pattern is measured with a 2⁷-1 PRBS input. Eye diagrams are taken with a 2³¹-1 PRBS input. The "Input Data Pattern" figure is uncorrelated with the other patterns due to the additional cable length.

Input Eye graph for EQ3-26
Input Data Pattern graph for EQ3-26
Eye after lossy cable graph for EQ3-26
Data pattern after lossy cable graph for EQ3-26
Eye after equalization graph for EQ3-26
Data pattern after equalization graph for EQ3-26

Specifications

Electrical Specifications

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

ParameterTest ConditionsMinimum
Frequency
(GHz)
Maximum
Frequency
(GHz)
MinTypMaxUnit
Frequency Range-0 26.5---GHz
Insertion Loss -6 6-1.2-dB
Insertion Loss -26 26-0.8-dB
Insertion Loss at DC -0 0-3-dB
Risetime/Falltime 1-0 26.5-14-ps
Return Loss -0 26.5-20-dB

[1] Specified as 20%/80%.

Absolute Maximum Ratings

ParameterMaximum RatingUnit
RF Power Handling 0.25W

Package Information

ParameterDetailsRating
Weight-9g
Dimensions-11.94 x 11.94 mm

Port Configuration and Functions

Port Diagram

Diagram of the port configuration for EQ3-26

Port Functions

PortFunctionConnector TypeDescriptionDC Equivalent
Circuit
PadGround -Ground provided through metal housing and outer coax conductor.Equivalent circuit for the Ground
Port 1Input/Output SMAFPort 1 is DC connected to ground through a resistor. DC block is required if voltage present.Equivalent circuit for the Input/Output
Port 2Input/Output SMAFPort 2 is DC connected to ground through a resistor. DC block is required if voltage present.Equivalent circuit for the Input/Output

Mechanical Data

Outline Drawing

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

Outline Drawing

Revision History

Revision CodeRevision DateComment
-2016-09-12Initial Date Release

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