Device Overview

General Description

The HLM-70CSP2 is a high-linearity GaAs Schottky diode signal limiter featuring high IP3 over a broad DC - 70GHz bandwidth. It offers low insertion loss and excellent return loss over a wide operating bandwidth. Its small size makes it ideal for protecting sensitive components and for applications requiring high channel counts. It is available as a plastic surface mount chip scale package or as a connectorized evaluation board.

Photo of HLM-70CSP2

Features

N/A

Applications

  • RF Transceivers
  • Test and Measurement Equipment
  • SATCOM

Functional Block Diagram

Block Diagram

Part Ordering Options

Part NumberDescriptionPackageGreen StatusProduct LifecycleExport Classification
HLM-70CSP2DC - 70GHz Chip Scale Package LimiterCSP2

REACH

RoHS

ReleasedEAR99
EVB-HLM-70CSP2DC - 70 GHz Chip Scale Package LimiterEVBReleasedEAR99

Table Of Contents

Revision History

Revision CodeRevision DateComment
-2024-06-03Initial Release
A2025-04-28Updated Moisture Sensitivity from MSL3 to MSL1
B2025-05-05Added ESD rating

Rev: B | Copyright © 2024 - 2025 Marki Microwave LLC.

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Port Configuration and Functions

Port Diagram

A top-down view of the HLM-70CPS2’s CSP2 package outline drawing is shown below. The HLM-70CSP2 has the input and output ports given in Port Functions.

Diagram of the port configuration for HLM-70CSP2

Port Functions

PortFunctionDescriptionDC Equivalent
Circuit
Ground PaddleGround CSP2 package ground path is provided through the ground paddle and should be connected to RF groundEquivalent circuit for the Ground
INInput The input port is diode connected for the CSP2 and EVAL package.Equivalent circuit for the Input
OutputOutput The output port is diode connected for the CSP2 and EVAL package.Equivalent circuit for the Output

Rev: B | Copyright © 2024 - 2025 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
RF Power Handling , Average 1W

Package Information

ParameterDetailsRating
ESD250 to < 500 VoltsHBM Class 1A
Dimensions-2.50 x 2.50 mm
Moisture Sensitivity Level-MSL 1

Rev: B | Copyright © 2024 - 2025 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 connectorized EVAL-package limiter unless otherwise specified. CSP1-package data shown is deembedded from the EVAL-package data. Linear Specifications valid for input power up to the 0.1dB compression point. See page 5 for P0.1dB graph. Min and Max limits are guaranteed at TA=+25°C.

ParameterTest ConditionsMinimum
Frequency
(GHz)
Maximum
Frequency
(GHz)
MinTypMaxUnit
Flat Leakage 18 GHz CW
- --18-dBm
Flat Leakage 20GHz CW
- --17-dBm
Flat Leakage 40GHz CW
- --13-dBm
Input IP3 DC – 60GHz
0 70-32-dBm
Insertion Loss DC – 70GHz
0 70-0.5-dB
Return Loss DC – 70GHz
0 70-21-dB

Rev: B | Copyright © 2024 - 2025 Marki Microwave LLC.

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Typical Performance Plots

Small Signal Insertion Loss (dB) graph for HLM-70CSP2
Small Signal Return Loss (dB) graph for HLM-70CSP2
Small Signal Insertion Loss (dB) graph for HLM-70CSP2
Small Signal Return Loss (dB) graph for HLM-70CSP2

Rev: B | Copyright © 2024 - 2025 Marki Microwave LLC.

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Typical Performance Plots EVB Package

Small Signal Insertion Loss (dB) graph for HLM-70CSP2
Small Signal Return Losses (dB) graph for HLM-70CSP2
Outpu Power (dBm) graph for HLM-70CSP2
Output Power vs. Input Power (dBm) graph for HLM-70CSP2
Output Power vs Input Power graph for HLM-70CSP2
Insertion Loss, Output Power vs. Input Power @ 10 GHz graph for HLM-70CSP2
Insertion Loss, Output Power vs. Input Power @ 20 GHz graph for HLM-70CSP2
Insertion Loss, Output Power vs. Input Power @ 30GHz graph for HLM-70CSP2

Rev: B | Copyright © 2024 - 2025 Marki Microwave LLC.

7

Insertion Loss, Output Power vs. Input Power @ 40 GHz graph for HLM-70CSP2
Insertion Loss, Output Power vs. Input Power @ 50 GHz graph for HLM-70CSP2
Input IP3 (dBm) graph for HLM-70CSP2
3F Harmonic graph for HLM-70CSP2
5F Harmonic graph for HLM-70CSP2
Harmonic Suppression vs. RF Input Power @ 1 GHz (dBc) graph for HLM-70CSP2

Rev: B | Copyright © 2024 - 2025 Marki Microwave LLC.

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Mechanical Data

Rev: B | Copyright © 2024 - 2025 Marki Microwave LLC.

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Rev: B | Copyright © 2024 - 2025 Marki Microwave LLC.

10

Evaluation Board - Outline Drawing

Outline Drawing

Rev: B | Copyright © 2024 - 2025 Marki Microwave LLC.

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