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sharps_eng
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re: IDT 4M piezoelectric MEMS oscillators
sharps_eng   5/19/2012 7:25:15 PM
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It is a big step to change the heartbeat of your system. These use a piezo resonator fabricated at MEMs level, not quite the same as a quartz crystal. But if it delivers, expect to see it built into SoCs. I'm still waiting for MCUs and oscillator manufacturers to implement a differential interface for low EMI. Now pin count isn't so critical there's no excuse

agk
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re: IDT 4M piezoelectric MEMS oscillators
agk   5/13/2012 7:22:58 AM
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pMEMS is a quartz crystal free oscillator.The company says this is more reliable and lower cost compared to the quartz based oscillators. They also provide a evaluation board to test these components easily. They are seeming to even provide few thousand numbers of custom specified frequencies.



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As data rates begin to move beyond 25 Gbps channels, new problems arise. Getting to 50 Gbps channels might not be possible with the traditional NRZ (2-level) signaling. PAM4 lets data rates double with only a small increase in channel bandwidth by sending two bits per symbol. But, it brings new measurement and analysis problems. Signal integrity sage Ransom Stephens will explain how PAM4 differs from NRZ and what to expect in design, measurement, and signal analysis.

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