KK3270052 Crystals, Oscillators, Resonators

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Oscillators

The KK3270052 oscillator is a temperature-controlled oscillator (TCXO) developed by Bi Technology, incorporated on the model KK327C-14/15. It works at a frequency range of 14 to 15 MHz, and can be used with either a CMOS/TTL logic supply or an analog voltage supply.

Application Field

The KK3270052 oscillator is ideal for numerous applications in the frequency range of 14 to 15 MHz. It is suitable for usage in the most sensitive of applications, such as communication, instrumentation, and medical electronics, as it eliminates the need for variable or dynamic changes in frequency. The KK3270052 is robust, capable of surviving temperature ranges of -55°C to +105°C.

In communications, the KK3270052 oscillator is used for radio frequency (RF) communications, as well as for synchronization of digital systems. It can be used in GPS transceivers and receivers, and pulse-position modulation (PPM) systems. This oscillator is often utilized in paging systems and FM wireless microphones. It is also suitable for usage in cordless phones.

The KK3270052 oscillator is also widely used in medical electronics and instrumentation. It is used for ultrasounds, ECG and EEG systems. It is applied with magnetic resonance imaging (MRI) systems, where precise frequency control is essential. In instrumentation, the oscillator is used for digital bridges, signal generators, and measuring systems.

Working Principle

The oscillator works on the principle of the field-effect transistor (FET) varying frequency in response to changing temperatures. This is known as negative temperature-frequency (NTF) feedback. The oscillator counteracts any frequency deviation due to temperature variation through NTF. It works to maintain a consistent frequency over a wide temperature range. This precise frequency stability is vital for many applications in communications and instrumentation.

The KK3270052 contains a ceramic resonator, which is used to reference frequency. When the oscillator’s core temperature rises and falls due to surrounding temperature variations, the resonator’s electrical properties also change. Within certain temperature limits, the oscillator is able to keep the frequency consistent and maintain precision.

Acting on the principle of FET oscillation, the oscillator consists of the following stages. An inverter drives a voltage-controlled oscillator (VCO), which is followed by a frequency divider. At the bottom is the reference oscillator, which generates the frequency used as a reference. The output of this reference oscillator is compared with the output of the frequency divider, and any discrepancies are adjusted by the voltage-controlled oscillator.

The KK3270052 oscillator is capable of providing an excellent combination of shock resistance, frequency stability, and cost. This makes it suitable for a wide variety of applications requiring precision timing and reliable performance.

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