SIT1602AC-23-33S-48.000000D

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Oscillators

An oscillator is a circuit that produces a continuous, periodic signal. They are widely used in different electronics and electrical applications, such as communications, satellite navigation, regulation of output signals, frequency synthesis, and more. Oscillators vary greatly in structure, type, and output, depending on the application.

SIT1602AC-23-33S-48.000000D is an oscillator designed to generate an output frequency of 48 MHz. With a small size of 2.5 x 2.0 x 1.2 mm, it is suitable for use in integration circuits within the under 3.3 V supply voltage range. SIT1602AC-23-33S-48.000000D oscillator features a fast start up time, good spectral purity, low jitter, and wide frequency range. It has a frequency accuracy of 0.7 to +5 ppm over the temperature range of -20°C to +70°C and a linear frequency tuning range of 0 to +15 ppm.

Application Field

SIT1602AC-23-33S-48.000000D oscillator is most applicable in network communication systems, high-definition digital TV, consumer electronics, and other digital electronics. The oscillator is suitable for a wide range of electrical applications such as personal computers, digital set-top boxes, routers, 3G/4G-NB mobile phones, digital communication equipment, medical devices, and other digital chipping devices.

Working Principle

The key component of oscillators is an amplifier or a logic gate. The amplifier or the logic gate produces an oscillation signal that is then applied to the input of a frequency sensitive element. The frequency sensitive element is usually a quartz crystal, an LC network, or a ceramic resonator. The output of the frequency sensitive element is fed back to the input of the amplifier or logic gate, thus completing the oscillation loop. The output of oscillators is a periodic signal that can be used as a clock signal to control other parts of the circuit, or as a carrier wave for frequency modulation and amplitude modulation in communications.

The SIT1602AC-23-33S-48.000000D oscillator is an off-the-shelf 48 MHz clock generator that uses a tool-free voltage controlled crystal oscillator (VCXO) as a frequency sensitive element. The silicon IC is embedded in the quartz crystal, thus forming a two-port resonator. It is then directly connected to the active devices of the oscillator in order to control the frequency of the output signal.

The device is powered up at 3.3 VDC and depends on the voltage pulses from the amplifier or the logic gate to alter the resonant frequency of the crystal. The output signals remain stable even when subjected to significant changes in the ambient temperature. This makes the oscillator an excellent choice for being used in applications that require a stable frequency over a wide temperature range.

Conclusion

The SIT1602AC-23-33S-48.000000D oscillator features low power consumption, small size, and good spectral purity. It is suitable for applications that require an output frequency of 48 MHz and also proven to be reliable over a wide temperature range. Due to its ability to produce a reliable output in various power levels, it is an ideal option for applications, such as high-definition digital TV, consumer electronics, and medical devices.

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