Lowe Hauptman & Ham, LLP
Phase-locked loops that share a loop filter
An integrated circuit includes a first die and a second die. The first die comprising a first phase-locked loop (PLL) and the second die comprising a second PLL. The integrated circuit includes a shared loop filter, wherein the first PLL in the first die is combined with the shared loop filter to form a first PLL feedback loop, the second PLL in the second die is combined with the shared loop filter to form a second PLL feedback loop and the shared loop filter is configured to provide configurable bandwidths to each of the first PLL feedback loop and the second PLL feedback loop.
Taiwan Semiconductor Manufacturing Company, Ltd.
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Huan-Neng Chewn-Pu Feng Wei Shyh-An Yen-Jen
Chen Jou Kuo Chi Chen