EPSON programmable spread spectrum crystal oscillator SG-9101CE is used for IPC cameras and has CMOS output function

Nov 27,2024
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With the development of technology, people have increasingly high requirements for the use of electronic devices. However, the EMI electromagnetic signals from the environment and the devices themselves can cause varying degrees of interference to electronic devices, seriously affecting their functionality and user experience. Nowadays, IPC has become an indispensable part of our lives. The crystal oscillator, which provides the signal source for the main control chip, directly determines the overall performance of IPC. However, in high pixel environments, the electromagnetic interference suffered by the crystal oscillator will also be more severe. Therefore, the technology of reducing electromagnetic interference from the source through frequency spreading has emerged.

This article introduces a low-power, wide range programmable spread spectrum crystal oscillator SG-9101CE, which can suppress high-frequency components and reduce EMI characteristics. The IPC camera block diagram is shown in Figure 1.

EPSON Programmable Spread Spectrum Crystal Oscillator SG-9101CE Product Features:

1. Low power consumption characteristics

Reduce energy consumption: In IPC cameras, stable operation for a long time is usually required. The low-power SG-9101CE crystal oscillator can effectively reduce overall energy consumption, which helps IPC cameras extend their usage time and reduce energy consumption in battery powered or power intensive scenarios, meeting the needs of energy conservation and environmental protection

Improving system stability: Lower power consumption means that the crystal oscillator generates less heat during operation, thereby reducing frequency drift and other issues that may occur due to temperature rise. This further enhances the stability and reliability of the IPC camera system, ensuring continuous stability and clarity of monitoring images.

2. Programmable functions

Flexible adaptation to various needs: Different functional modules of IPC cameras may require different clock frequencies to achieve optimal performance. The programmable feature of SG-9101CE enables flexible adjustment within a wide frequency range of 0.67MHz to 170MHz with an accuracy of 1ppm, meeting the diverse clock signal requirements of different components such as image sensors, video encoding chips, and communication modules in IPC cameras, achieving high system integration and optimization

Rapid response to market changes: With the continuous development and upgrading of IPC camera technology, the requirements for clock frequency may also change. The programmability of SG-9101CE enables easy frequency adjustment through programming without the need to replace crystal oscillator hardware during product upgrades or feature extensions, greatly reducing research and development cycles and costs, helping IPC camera manufacturers to quickly launch new products that meet market demand, and enhancing market competitiveness

3. Display frequency function

Reduce electromagnetic interference: In the working environment of IPC cameras, there are various electronic devices and wireless signals, and electromagnetic interference is relatively complex. The spreading function of SG-9101CE can effectively reduce electromagnetic radiation power and interference with surrounding devices by dynamically changing the clock frequency. At the same time, it also improves its anti-interference ability, ensuring that IPC cameras can work stably and normally in complex electromagnetic environments, avoiding problems such as image flicker and distortion caused by electromagnetic interference

Improving system compatibility: Due to its spread spectrum characteristics, SG-9101CE can better adapt to different electromagnetic environments and device configurations, improving the compatibility and collaborative ability between IPC cameras and other devices. This enables IPC cameras to be widely used in various scenarios, such as smart homes, security monitoring systems, etc., seamlessly integrating with other electronic devices and achieving more powerful functional integration.

4. CMOS output function

Adaptation to mainstream chips: Most chips and circuits in IPC cameras are typically manufactured using CMOS technology. The CMOS output function of SG-9101CE can be directly matched with these chips without the need for additional level conversion circuits, simplifying system design, reducing hardware costs and circuit board complexity, while also reducing delay and distortion during signal transmission, improving the quality and efficiency of signal transmission

Improving signal integrity: CMOS output signals have the advantages of low power consumption, high anti-interference ability, and fast rising and falling edge speed, which can better meet the strict requirements of IPC cameras for clock signals, ensure the accuracy and stability of clock signals, and provide accurate time references for image acquisition, processing, and transmission processes, ensuring high-quality and real-time monitoring images