TC-57.849MCE-T

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TC-57.849MCE-T oscillator

Introduction:

The TC-57.849MCE-T is a miniature, low phase noise quartz oscillator manufactured by Teledyne. This TCXO (temperature controlled crystal oscillator) is designed to operate from 5MHz to up to 42MHz. Its low power consumption and attractive price, makes the TC-57.849MCE-T the ideal choice as an oscillator in many applications, including communications, industrial, instrumentation, and automotive fields.

TC-57.849MCE-T Application Field and Working Principle

Application Fields: The TC-57.849MCE-T can be used in a wide range of applications which require the precision timing that provided by the TCXO. This tiny oscillator is perfect for applications such as remote controls, GPS receivers, wireless LANs, mobile phones, set-top boxes, alarms, as well as many other commercial and industrial electronic products that require a stable frequency over temperature for accurate operation.

Working Principle: The basic principle of the TC-57.849MCE-T is relatively simple. This quartz oscillator is integrated with a closed-loop control system. It is comprised of an oscillator, a temperature sensor, a compensation circuit and a logic control circuit. The oscillator is designed to operate at a given frequency or with a given accuracy. The temperature sensor is used to measure the variation of the ambient temperature and send the signal to the compensation circuit. The compensation circuit then regulates the oscillator accordingly.

The logic control circuit contains a digitally programmed EEPROM. This programmed EEPROM stores parameters such as the oscillator\'s reference frequency, oscillator\'s accuracy over temperature, oscillator\'s tolerance, as well as other options like the frequency trim range and environmental compensation characteristics. This allows the TC-57.849MCE-T to remain as stable as possible over wide temperature ranges, even in harsh environmental conditions.

The TC-57.849MCE-T has a package size of 5.0 x 3.1 x 1.4mm and is available in various options such as a hermetically sealed ceramic housing, an optional shielding lid, and an EC option to measure the ambient temperature with an external thermistor. This tiny oscillator also comes with an operating temperature range of -40°C to +85°C and offers excellent reliability, making it ideal for a wide range of applications.

Conclusion: The TC-57.849MCE-T is an excellent choice for applications which require precision timing. With its small form factor, low power consumption, and attractive price, the TC-57.849MCE-T is sure to find its way into many commercial and industrial electronic products. Its ability to maintain a stable frequency over wide temperature ranges, even in harsh environmental conditions, and its resistance to vibration and shock make it the ideal choice for many applications.

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