US 12,316,336 B2
Systems for and methods of phase interpolation
Yonghyun Shim, Irvine, CA (US); Yu-Ming Ying, Irvine, CA (US); Guansheng Li, Irvine, CA (US); Delong Cui, Tustin, CA (US); and Jun Cao, Irvine, CA (US)
Assigned to Avago Technologies International Sales Pte. Limited, Singapore (SG)
Filed by Avago Technologies International Sales Pte. Limited, Singapore (SG)
Filed on Jun. 7, 2023, as Appl. No. 18/330,719.
Prior Publication US 2024/0413827 A1, Dec. 12, 2024
Int. Cl. H03K 3/03 (2006.01); H03L 7/24 (2006.01); H04L 7/00 (2006.01)
CPC H03L 7/24 (2013.01) [H03K 3/0322 (2013.01); H04L 7/0025 (2013.01); H04L 7/0037 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A system, comprising:
a first phase interpolator;
a second phase interpolator;
a first circuit configured to receive a first signal and a second signal provided by the first phase interpolator and a third signal and a fourth signal provided by the second phase interpolator, wherein the first circuit is configured to provide at least eight phase signals, each of the eight phase signals being at a respective phase angle, in response to the first signal, the second signal, the third signal and the fourth signal; and
a second circuit configured to buffer a plurality of input signals related to the first signal, the second signal, the third signal, and the fourth signal, wherein the second circuit receives a first skew control signal.