Invention Grant
- Patent Title: Decision feedback equalizer summation circuit
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Application No.: US14492237Application Date: 2014-09-22
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Publication No.: US09722818B2Publication Date: 2017-08-01
- Inventor: Ming-Chieh Huang , Chan-Hong Chern , Tao Wen Chung , Yuwen Swei , Chih-Chang Lin , Tsung-Ching Huang
- Applicant: Ming-Chieh Huang , Chan-Hong Chern , Tao Wen Chung , Yuwen Swei , Chih-Chang Lin , Tsung-Ching Huang
- Applicant Address: TW Hsin-Chu
- Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
- Current Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
- Current Assignee Address: TW Hsin-Chu
- Agency: Duane Morris LLP
- Main IPC: H03H7/30
- IPC: H03H7/30 ; H03H7/40 ; H03K5/159 ; H04L25/03 ; H04L25/06 ; H04L25/08

Abstract:
A circuit includes a summation circuit for receiving an input data signal and a feedback signal including a previous data bit. The summation circuit is configured to output a conditioned input data signal to a clock and data recovery circuit. A first flip-flop is coupled to an output of the summation circuit and is configured to receive a first set of bits of the conditioned input data signal and a first clock signal having a frequency that is less than a frequency at which the input data signal is received by the first summation circuit. A second flip-flop is coupled to the output of the summation circuit and is configured to receive a second set of bits of the conditioned input data signal and a second clock signal having a frequency that is less than the frequency at which the input data signal is received by the first summation circuit.
Public/Granted literature
- US20160087817A1 DECISION FEEDBACK EQUALIZER SUMMATION CIRCUIT Public/Granted day:2016-03-24
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