industry news
Subscribe Now

STMicroelectronics’ high-bandwidth common-mode filters ensure signal integrity in multi-gigabit serial interfaces

Geneva, May 23, 2022 – New common-mode filters from STMicroelectronics have an extremely wide differential bandwidth of 10.7GHz to protect antenna sensitivity in adjacent wireless circuitry from the latest serial digital interfaces.

The 2-channel ECMF2-40A100N10 and 4-channel ECMF4-40A100N10 are compatible with high-speed interface standards including USB 3.2 Gen 2, USB4, HDMI 2.1, and DisplayPort. With their low serial resistance of just 3Ω, which minimizes eye-diagram distortion, the filters preserve signal integrity. The filters deliver deep common-mode attenuation (Scc21) from 2.4GHz to 7GHz, reaching -21dB at 5GHz, and effectively prevent interference with Wi-Fi® and Bluetooth® receivers.

In addition to tackling antenna de-sensitivity issues, the filters can be used for general interface-noise reduction to ensure compliance with electromagnetic compatibility (EMC) regulations. ESD protection up to ±9kV (contact discharge) and ±20kV (air discharge) is also built-in, which exceeds IEC 61000-4-2 level 4.

Both filters are housed in compact micro quad flat no-lead (µQFN) packages only 0.5mm high and are suited to demanding industrial applications as well as consumer products. They are well suited to protect smart factory equipment, imaging systems, medical devices, laboratory equipment, home-automation systems, set-top boxes, smart televisions, game consoles, notebooks, tablets, and docking stations.

Evaluation boards are available and offer a choice of SMA connector or USB-C connector to provide a convenient connection to test equipment for exploring the filters’ performance.

The ECMF2-40A100N6 in 1.35mm x 1.4mm 6-lead µQFN-6L and ECMF4-40A100N10 in 1.35mm x 2.2mm 10-lead µQFN-10L are in production now. Pricing starts from $0.19 for the ECMF2-40A100N10 and $0.26 for the ECMF4-40A100N10, for orders of 1000 pieces.

For more information please go to www.st.com/ecmf-common-mode-filters

Leave a Reply

featured blogs
Jun 30, 2022
Learn how AI-powered cameras and neural network image processing enable everything from smartphone portraits to machine vision and automotive safety features. The post How AI Helps Cameras See More Clearly appeared first on From Silicon To Software....
Jun 30, 2022
The Team RF "μWaveRiders" blog series is a showcase for Cadence AWR RF products. Monthly topics will vary between Cadence AWR Design Environment release highlights, feature videos, Cadence... ...
Jun 28, 2022
Watching this video caused me to wander off into the weeds looking at a weird and wonderful collection of wheeled implementations....

featured video

Multi-Vendor Extra Long Reach 112G SerDes Interoperability Between Synopsys and AMD

Sponsored by Synopsys

This OFC 2022 demo features Synopsys 112G Ethernet IP interoperating with AMD's 112G FPGA and 2.5m DAC, showcasing best TX and RX performance with auto negotiation and link training.

Learn More

featured paper

An Engineer's Guide to Designing with Precision Amplifiers

Sponsored by Texas Instruments

Engineers face many challenges when designing analog circuits. This e-book covers common topics related to these products, including operational amplifier (op amp) specifications and printed circuit board layout issues, instrumentation amplifier linear operating regions, and electrical overstress.

Click to read more

featured chalk talk

NEUTRIK Fiber Optic Solutions

Sponsored by Mouser Electronics and Neutrik

The advantages and benefits of fiber optics are a mile long…but how can you design with them? How can you clean them? How do you repair them? Need a bit of a refresher? In this episode of Chalk Talk, Amelia Dalton chats with David Kuklinski from Neutrik about the OpticalCon advanced, OpticalCon LITE and Opticalcon DragonFly fiber optic solutions from Neutrik. They take a closer look at what benefits each of these solutions brings to the table, what kind of configurations are offered with each of these fiber optic solutions and what kind of performance you can expect when using them in your next design.

Click here for more information about Neutrik opticalCON® Fiber Optic Connector System