US 12,308,049 B2
Decision feedback equalization in semiconductor devices
Shang-Chi Yang, Changhua County (TW); Chun-Hao Tsai, Taoyuan (TW); and Tung-Yu Li, Taoyuan (TW)
Assigned to Macronix International Co., Ltd., Hsinchu (TW)
Filed by Macronix International Co., Ltd., Hsinchu (TW)
Filed on Jun. 26, 2023, as Appl. No. 18/341,086.
Prior Publication US 2024/0428822 A1, Dec. 26, 2024
Int. Cl. G11B 20/10 (2006.01); G11B 20/14 (2006.01)
CPC G11B 20/10037 (2013.01) [G11B 20/1423 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An electronic circuit, comprising:
a converter circuit configured to convert an input signal to a digital signal, wherein the converter circuit comprises: a current mode logic (CML) circuit configured to generate a CML signal based on the input signal, and a CML-to-digital converter circuit configured to convert the CML signal to the digital signal; and
a compensation circuit coupled to the converter circuit, the compensation circuit comprising:
a sampling circuit configured to receive the digital signal and generate an output signal, the output signal comprising a stream of bits to be transmitted at a plurality of consecutive clock cycles; and
one or more equalizing circuits coupled to the sampling circuit, each of the one or more equalizing circuits being configured to receive a bit of an output feedback signal at a corresponding one of the consecutive clock cycles and generate a corresponding equalization output,
wherein the sampling circuit is configured to generate the output signal based on the digital signal and a sum of one or more equalization outputs of the one or more equalizing circuits.