Does Low-Power HCSL (LP-HCSL) require a DC coupled termination?

No. One advantage of LP-HCSL is easy AC-coupling. LP-HCSL does not require a DC coupled termination like traditional HCSL does. You can add capacitors in series with LP-HCSL signals without affecting the signal swing or termination properties. With traditional HCSL, care has to be taken that a DC path to ground remains when adding AC coupling and this may require extra components.

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Documents

Title Other Languages Type Format File Size Date
Application Notes & White Papers
AN-879 Low-Power HCSL vs Traditional HCSL Application Note PDF 150 KB Apr 7, 2015