402F2001XIAT

Crystals

Crystals are solid materials with particles arranged in a very ordered manner and repeating in three dimensions. Crystals form a regular lattice and are typically composed of ions, atoms, and molecules, known as micro-crystals. The unique structural arrangement of the micro-crystals makes crystals a popular material for optoelectronic and other applications, such as in frequency control and signal transmission, which require wide bandwidth and low jitter.

402F2001XIAT Application Field

The 402F2001XIAT (XMM0402) is an application-specific oscillator designed and manufactured by TOKEN Electronics. This XMM0402 is a low-jitter, high-performance, and high-frequency quartz crystal oscillator that is capable of providing reliable timing solutions for a broad range of applications, including mobile phones, digital broadcast systems, computer peripherals, medical equipment, and more.

This XMM0402 is an XMM-based oscillator, meaning that it has two plates and a single crystal inside. It is a type II oscillator which means it can provide frequency and temperature stable output. The 402F2001XIAT is designed to operate over a wide temperature range, ranging from -55ºC to +125ºC and is ideal for applications that require maximum reliability in extreme temperature conditions.

The 402F2001XIAT is engineered to provide maximum performance in minimal size. It provides a high-frequency output of up to 3.2 GHz and is available in a package that measures a mere 0.25 inches (6.35mm), making it easy to incorporate this device into production systems.

402F2001XIAT Working Principle

The 402F2001XIAT works by utilizing the piezoelectric effect of the crystal material to generate a high-frequency electrical signal when a DC bias voltage is applied to the crystal. This electrical signal then passes through the oscillator circuit of the device, where it is amplified and converted into a stable output signal. The frequency of the output signal is determined by the resonance frequency of the crystal material.

The oscillator circuit is designed to take advantage of the temperature stability of the crystal material. The device maintains its stable output signal by adjusting the DC bias voltage to maintain the crystal\'s resonance frequency. As the temperature changes or the crystal ages, the resonance frequency will shift and the device will compensate to maintain the desired output frequency.

The 402F2001XIAT crystal oscillator also utilizes a negative resistance circuit to compensate for the resistor aging effects that can be encountered over time. This prevents frequency drift and maintains the desired output frequency for a longer period of time, which is vitally important for applications that require stable output signals over an extended operating period.

Conclusion

The 402F2001XIAT is an example of the already highly reliable crystal oscillator technology applied to achieve even greater performance and stability. By taking advantage of the temperature stability of the crystal material, combining it with a negative resistance circuit, and compressing all of this into a tiny package, the 402F2001XIAT provides stable and reliable output signals for applications that require the highest levels of performance.