Signalverarbeitungsverfahren, Schaltung und Chip sowie Elektronische Vorrichtung

Details

Veröffentlichungs-Nr.

EP4790900

Anmeldetag

20. Dezember 2024

Veröffentlichung

25. Juni 2026

Rechtsraum

EP

IPC

H03K7/08

Abstract

Embodiments of the present application provide a signal processing method, circuit, and chip and an electronic device. The signal processing method includes: processing an input digital signal based on a PWM synchronization clock signal to obtain an analog differential signal; performing chopping processing on an intermediate common-mode voltage signal based on a chopping clock signal to obtain a common-mode voltage signal, where the intermediate common-mode voltage signal is used to stabilize a common-mode voltage of the analog differential signal, and an edge of a pulse included in the chopping clock signal is not aligned with an edge of a pulse included in the PWM synchronization clock signal in a time sequence; performing noise shaping and then PWM modulation on the analog differential signal to obtain a PWM signal; and performing voltage domain conversion on the PWM signal to obtain an output signal. This solution can improve signal processing performance.

Anmelder

Firma

SHENZHEN GOODIX TECHNOLOGY CO., LTD.

Land

🇨🇳 China

Fachgebiete