Multi-channel amplifier with soft common return point
GB2644960APending Publication Date: 2026-07-01CIRRUS LOGIC INT SEMICON LTD
Patent Information
- Authority / Receiving Office
- GB · GB
- Patent Type
- Applications
- Current Assignee / Owner
- CIRRUS LOGIC INT SEMICON LTD
- Filing Date
- 2024-09-10
- Publication Date
- 2026-07-01
AI Technical Summary
Technical Problem
Existing multi-channel amplifiers face challenges in minimizing noise and distortion, particularly when driven by different signals, which can lead to common mode noise and affect signal integrity.
Method used
The system incorporates a plurality of channel switching amplifiers with a shared capacitor and a feedback path to isolate the amplifiers and ensure a flat frequency response. A signal processor processes input signals and feedback signals to regulate the common mode signal and control the voltage range of the common terminal.
Benefits of technology
This configuration reduces noise and distortion, maintains signal integrity, and ensures a flat frequency response across channels, thereby improving the overall performance of the multi-channel amplifier.
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Abstract
A system may include a signal processor that receives a first input signal from a first channel switching amplifier of a multi-channel amplifier and a second input signal from a second channel switchi
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