353SB5C447R

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Oscillators

An oscillator is one of the most important components of any electrical or electronic system. Oscillators are circuit devices which generate alternating current or voltage signals of sinusoidal, rectangular, triangular or other shapes. Oscillators are used mainly for the purpose of providing electrical signals to the various circuits in a system. They are also used for other purposes such as providing a signal for communication, starting the operation of a system and synchronizing different electronic components or circuits.

353SB5C447R oscillators are developed for wired and wireless communication applications. They are designed to precisely check timing accuracy and compensate operating frequency changes caused by temperature variations. They offer improved accuracy over core clock designs, and provide excellent long term precision and drift characteristics. The 353SB5C447R oscillators feature 8.0 x 6.0 mm ceramic packages, thus suitable for high-density design. They are well-suited for applications where timing accuracy is a primary concern such as wired and wireless telecom systems, base stations, GSM/GPRS/EDGE and CDMA handsets, UMTS systems, 3G and 4G mobiles, GPS systems, portable electronic devices, etc.

Working Principle

353SB5C447R oscillators are based on passive components such as varistors and capacitors, or active components such as analog integrated circuits and digital logic. The oscillator generates an AC signal which oscillates in the range of 1 Hz to 10 MHz, dependent on the type of oscillator work. The basic principle of an oscillator is to convert a direct current (DC) signal into an alternating current (AC) signal. Depending on the type of oscillator, there are many different methods used for this purpose. Generally, an active oscillator works by amplifying an input signal with an amplifier and then sending it through a network of elements such as resistors, capacitors or inductors. This generated AC signal is then fed back into the input of the amplifier so that the output of the amplifier is continuously amplified.

353SB5C447R oscillators can be used in either voltage controlled or temperature compensated oscillators. A Voltage Controlled Oscillator (VCO) is typically used for frequency control, and works by varying the amplitude of an input signal, in accordance to the external controlling voltage. Temperature Compensated Oscillator (TCXO) includes an AT-cut quartz crystal resonator and a novel temperature compensating circuit. The temperature compensating circuit is placed between the crystal and the amplifier, allowing the output signal’s frequency to change in response to changes in the temperature of the environment.

These oscillators can also be used in crystal oscillators and are primarily designed for high frequency applications. Crystal oscillators use a quartz crystal as a frequency selective element, and have the ability to produce very precise frequencies. They are usually used in oscillators operating up to 200 MHz, and provide a much higher frequency stability than VCOs or TCXOs.

Applications

Due to its exceptional temperature compensation range and low jitter performance, the 353SB5C447R oscillators are suitable for various communication and electronics applications. They are suitable for a wide variety of wired and wireless applications including cellular phones, datacom systems, test equipment, instrumentation, precision timing, and wireless communication systems. These oscillators can also be used in RFID systems, base stations, GPS, and other related applications. The 353SB5C447R oscillators are ideal for applications that require tight timing accuracy and stability, such as telecom base stations and satellite systems.

Overall, the 353SB5C447R oscillators are ideal for applications that require precise timing accuracy, exceptional temperature stability, and low jitter performance in order to run stably at all times. They have the ability to provide accurate and consistent output signals in all conditions, making them highly reliable and suitable for a wide range of applications.

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