653P21252I2T

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Oscillators are a class of electronic components used to produce periodic electrical signals, typically for the purposes of timing and synchronizing. One type of oscillator used for these tasks is the 653P21252I2T, designed and manufactured by Specialty Electronic Components, Inc. This document will discuss the application field and working principle of the 653P21252I2T.

The 653P21252I2T is a general-purpose oscillator for high-precision timing and frequency control. It is typically used in precision temperature-sensing systems, radio frequency systems, digital timing systems, and other applications where precise timing is required. Its features include a temperature-stability of 0.06 ppm/°C over a temperature range of -40°C to +85°C, an operating temperature range of -40°C to +85°C, and an output frequency range of 0.1 MHz to 500 MHz. Also, it has a start-up time of less than 500 μs and a start-up voltage of 2.5V, and its power consumption is a low 2.5W.

The 653P21252I2T is based on a CMOS-based oscillator design that uses an inverted Colpitts oscillator topology. The oscillator consists of an N-type input transistor and a P-type output transistor, which are both connected to a dual-port quartz resonator. A voltage source powers the oscillator and provides the bias voltage. The bias voltage modulates the frequency of the output signal. The output transistor is connected to the quartz resonator, which acts as a frequency filter. This filtering action allows the oscillator to maintain a frequency stable output over a wide range of temperatures. The circuit also contains a voltage-controlled crystal oscillator (VCXO), which adjusts the frequency of the oscillator in order to maximize temperature stability.

The 653P21252I2T is a highly reliable and accurate oscillator that is capable of withstanding high temperature ranges. It is well-suited for a wide variety of timing and synchronizing applications, including those requiring precise temperature stability. Its low start-up time, low power consumption, and wide output frequency range make it an ideal choice for many frequency-controlled applications.

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