Oszillatorschaltungen mit Flimmerrauschunterdrückung durch Phasenverschobene Selbstinjektion

Details

Veröffentlichungs-Nr.

EP4738698

Anmeldetag

19. Juni 2025

Veröffentlichung

6. Mai 2026

Rechtsraum

EP

IPC

H03B5/12

Abstract

An oscillator circuit (100, 300) includes a first cross coupled pair (110, 310), a second cross coupled pair (120, 320), a resonant circuit (130) coupled between the first cross coupled pair (110, 310) and the second cross coupled pair (120, 320) and a first injection circuit (140-1, 340-1). The resonant circuit (130) includes a first node outputting a first voltage signal (VoscP) and a second node outputting a second voltage signal (VoscN). The first injection circuit (140-1, 340-1) is coupled to the first cross coupled pair (110, 310) and injects a first compensating current with a first predetermined phase to a predetermined node of the first cross coupled pair (110, 310).

Anmelder

Firma

MEDIATEK INC.

Land

🇹🇼 Taiwan