Clock circuit for improving excessive radiation of camera, circuit board and camera
CN224289765UActive Publication Date: 2026-05-26IRIDIUM ELECTRONIC TECH (SHANGHAI) CO LTD
View PDF 0 Cites 0 Cited by
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- IRIDIUM ELECTRONIC TECH (SHANGHAI) CO LTD
- Filing Date
- 2025-04-22
- Publication Date
- 2026-05-26
AI Technical Summary
Technical Problem
Existing technologies lack effective solutions to the problem of excessive camera radiation, resulting in in-vehicle electronic systems exceeding the standard in some frequency bands during EMC testing.
Method used
By adding a capacitor C40 in parallel to the clock circuit to increase the clock rise time, adjusting the stack-up structure of the PCBA board and adding a metal shielding layer to control electromagnetic radiation and reduce high-order harmonic energy.
Benefits of technology
It effectively improves the problem of excessive radiation from cameras, meets EMC testing requirements, and has a simple structure that is easy to manufacture.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN224289765U_ABST
Abstract
The utility model discloses a clock circuit for improving excessive radiation of a camera, a circuit board and the camera. Wherein the clock circuit comprises an oscillator OSC1, and an output enabling pin 1 of the oscillator OSC1 is connected with one end of a resistor R11; a grounding pin 2 of the oscillator OSC1 is grounded; an output pin 3 of the oscillator OSC1 is connected with one end of a resistor R12; a positive power supply pin 4 of the oscillator OSC1 is respectively connected with an output voltage interface DOVDD, the other end of the resistor R11 and one end of a capacitor C21; the other end of the capacitor C21 is grounded; the other end of the resistor R12 is connected with a clock signal interface XVCLK and one end of a capacitor C40, and the other end of the capacitor C40 is grounded. According to the utility model, the problem of excessive radiation of the camera can be improved.
Need to check novelty before this filing date? Find Prior Art