A clock oscillator is a component that generates an electrical signal at a constant frequency using a quartz crystal and an oscillation circuit. Electronic devices contain many components that must operate in sync with a defined clock signal, such as CPUs, MCUs, communication chips, sensors, memory, and network chips, and the clock oscillator supplies their reference clock.

H&S HighTech’s clock oscillators are frequency control components that use a quartz crystal and an oscillation circuit to generate and output the reference clock signals required by electronic devices. The company offers a wide range of frequency control products, including crystal units, clock oscillators, VCXOs, TCXOs, and OCXOs, and continues to develop products that meet demands for miniaturization, low power consumption, high frequency, high precision, and automotive-grade reliability.

A VCXO is an oscillator based on a crystal unit and an oscillation circuit whose output frequency can be finely adjusted by an externally applied control voltage.

H&S HighTech’s VCXOs are voltage-controlled crystal oscillators based on a quartz crystal and an oscillation circuit, allowing the output frequency to be fine-tuned according to an external control voltage. While a standard clock oscillator outputs a fixed frequency, a VCXO works with PLL circuits and similar systems to provide the clock synchronization and frequency correction required in telecommunications equipment, network equipment, video and broadcasting equipment, and automotive electronics.

MEMS stands for Micro-Electro-Mechanical Systems. A MEMS oscillator generates a clock signal at a constant frequency using a silicon-based microscopic resonating structure instead of a conventional quartz crystal.

H&S HighTech’s MEMS oscillators are frequency control components that generate a reference clock using a silicon-based micro-electro-mechanical structure. Unlike conventional quartz-crystal oscillators, they offer advantages in miniaturization, shock and vibration resistance, and circuit integration thanks to the MEMS process, making them suitable for electronic devices that require high reliability and a compact size, such as IoT devices, wearables, automotive electronics, and industrial equipment.

The Automotive line is the company’s range of frequency control products designed for the automotive market. These automotive-grade components provide the reference clock that allows electronic systems in vehicles to operate with accurate timing and frequency.

H&S HighTech’s automotive products are frequency control components for automotive electronics, covering crystal units, clock oscillators, VCXOs, TCXOs, MEMS oscillators, and more. They must meet stricter requirements than components for general electronics in terms of high and low temperatures, vibration, shock, electrical noise, and long-term reliability. The company is strengthening its position in the automotive electronics market by developing AEC-Q200-compliant XOs, high-stability products in the ±10 ppm class, and ultra-compact, low-voltage, high-frequency products.

Going beyond standard crystal units and oscillators, this is a high-precision frequency control product line with enhanced frequency accuracy, temperature stability, low noise, and long-term reliability.

H&S HighTech’s high-precision products are the high-accuracy, high-stability grades of its frequency control components, including crystal units, clock oscillators, VCXOs, and TCXOs. With improved frequency tolerance, temperature stability, jitter, phase noise, and long-term reliability compared with standard products, these high-value-added products serve high-reliability markets such as telecommunications equipment, automotive electronics, industrial equipment, and high-speed data equipment.