Invention Grant
- Patent Title: Decision feedback equalizer with high input sensitivity and improved performance for signal processing
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Application No.: US18105744Application Date: 2023-02-03
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Publication No.: US12081372B2Publication Date: 2024-09-03
- Inventor: James Cong Nguyen
- Applicant: SEMTECH CORPORATION
- Applicant Address: US CA Camarillo
- Assignee: SEMTECH CORPORATION
- Current Assignee: SEMTECH CORPORATION
- Current Assignee Address: US CA Camarillo
- Agency: Morgan, Lewis & Bockius LLP
- Main IPC: H04L5/12
- IPC: H04L5/12 ; H04L25/03

Abstract:
A decision feedback equalizer (DFE) may include a summer configured to receive a signal stream, and a plurality of feedback taps including a first feedback tap connected to the summer. The first feedback tap may include a pre-amplifier, a combined latch and a digital to analog converter (DAC). The pre-amplifier may be configured to be clocked by a first clock signal, wherein the pre-amplifier may be configured to receive an output signal of the summer and to receive a first postcursor generated by the DFE of a previous signal in the signal stream. The combined latch may be configured to be clocked by a first clock signal and a second clock signal. The DAC may be coupled to an output node of the combined latch. The first postcursor may be provided to the pre-amplifier without being provided to the summer.
Public/Granted literature
- US20240267264A1 DECISION FEEDBACK EQUALIZER WITH HIGH INPUT SENSITIVITY AND IMPROVED PERFORMANCE FOR SIGNAL PROCESSING Public/Granted day:2024-08-08
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