- 专利标题: Offset circuitry and threshold reference circuitry for a capture flip-flop
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申请号: US17398675申请日: 2021-08-10
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公开(公告)号: US11695397B2公开(公告)日: 2023-07-04
- 发明人: Wenfeng Zhang , Parag Upadhyaya
- 申请人: XILINX, INC.
- 申请人地址: US CA San Jose
- 专利权人: XILINX, INC.
- 当前专利权人: XILINX, INC.
- 当前专利权人地址: US CA San Jose
- 代理机构: Patterson + Sheridan, LLP
- 主分类号: H03K5/003
- IPC分类号: H03K5/003 ; H03K3/037 ; H04B1/16 ; H04L27/32
摘要:
Receiver circuitry for a communication system includes signal processing circuitry, voltage digital-to-analog converter (DAC) circuitry, and slicer circuitry. The signal processing circuitry receives a data signal and generate a processed data signal. The voltage DAC circuitry generates a first threshold reference voltage. The slicer circuitry is coupled to an output of the signal processing circuitry. The slicer circuitry includes a capture flip-flop (CapFF) circuit that receives the processed data signal and the first threshold reference voltage. The CapFF circuit further generates a first data signal. The first CapFF circuit includes a first offset compensation circuit that adjusts a parasitic capacitance of the first CapFF circuit.
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