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OK, you just received an e-mailed from your EMI test lab and it’s not very good news. Your board design failed the FCC Compliance test. Meanwhile, pre-production is scheduled for next week and the pressure is on.
Well, you’ve already tried adding ferrite beads and chokes to the circuit board. This was an improvement, but you’re not quite there.
So now you add metal shielding, apply special coating, try some RF gaskets, you even add a power layer & ground plane the circuit, but to no avail.
Think, think, think… what is causing this EMI issue in the first place? The system clocks, such as the frequency timing generator, crystal oscillator, VCO & PLL. But how can you lower the EMI emissions?
All you need to do is remove the existing quartz crystal oscillator and install a drop-in replacement SSXO, an EMI Reduction Clock, also known as a Spread Spectrum Crystal Oscillator.
But there is no time to wait 5 to 6 weeks for a SSXO sample.
The answer is as easy as 1, 2, 3…
Technical Notes: http://mercuryunited.com/pdf/TN-020%20Low%20EMI%20SSC%20170901.pdf
Chat with sales & engineering support online, via e-mail or by phone.
Additional legacy package types may be available.
Mercury United Electronics, Inc. is a manufacturer of Quartz Crystals & Oscillators, including Silicon Oscillators, Low EMI Spread Spectrum Clocks, TCXO’s, VCTCXO’s, VCXO’s, OCXO’s, Monolithic Crystal Filters, Pulse Generators, & Inductive Proximity Sensors.
Mercury Electronic Industrial Co., Ltd., headquartered in New Taipei City, Taiwan, has been manufacturing frequency control products since 1973, using the latest state-of-the-art, high volume production equipment.
Visit Mercury United Electronics at http://www.MercuryUnited.com
(Tel) 909-466-0427 or by e-mail at: firstname.lastname@example.org (U.S.A)