一种多级CTLE发射极电路及芯片
By cascading the CTLE circuit and the equalization output stage circuit, adjustable zeros and poles are added, solving the in-band unevenness problem caused by the equalization of a single-stage CTLE circuit, and realizing high bandwidth and large compensation of the circuit.
CN116317992BActive Publication Date: 2026-07-17CRSC RESEARCH & DESIGN INSTITUTE GROUP CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CRSC RESEARCH & DESIGN INSTITUTE GROUP CO LTD
- Filing Date
- 2023-03-06
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
The existing CTLE circuit cannot provide sufficient compensation points, resulting in in-band unevenness issues. It cannot provide significant compensation points.
Method used
By cascading the CTLE circuit and the equalization output stage circuit, adjustable zeros and poles are added, solving the in-band unevenness problem caused by the equalization of a single-stage CTLE circuit.
Benefits of technology
The circuit's compensation amplitude was improved, the in-band unevenness problem in the frequency domain was solved, and the circuit's output signal was made distortion-free.
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Figure CN116317992B_ABST
Abstract
本发明公开了一种多级CTLE发射极电路及芯片。该多级CTLE发射极电路包括：级联连接的CTLE电路和均衡输出极电路；均衡输出极电路包括：输出级结构、偏置结构和第一可调结构；输出级结构的输入端与CTLE电路的输出端电连接，输出级结构的输出端作为CTLE发射极电路的输出端；偏置结构连接于输出级结构和第一可调结构之间，偏置结构由偏置电压控制；可调结构用于调整均衡输出极电路的零极点。本发明实施例的技术方案可提供多个零极点，增加补偿位置，提高补偿幅度，解决单级CTLE电路均衡引起的带内不平整问题。
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