7WA1472001 Crystals, Oscillators, Resonators

Series:	7W
Packaging:	Tape & Reel (TR)
Part Status:	Active
Base Resonator:	Crystal
Type:	XO (Standard)
Frequency:	114.285MHz
Function:	Enable/Disable
Output:	CMOS
Voltage - Supply:	3.3V
Frequency Stability:	±50ppm
Operating Temperature:	-40°C ~ 85°C
Current - Supply (Max):	--
Ratings:	--
Mounting Type:	Surface Mount
Package / Case:	4-SMD, No Lead
Size / Dimension:	0.276" L x 0.197" W (7.00mm x 5.00mm)
Height - Seated (Max):	0.056" (1.42mm)
Current - Supply (Disable) (Max):	--

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Oscillators

Oscillators are devices used to generate repeated electrical signals at a desired frequency. They typically use an electrical circuit consisting of an amplifier and a resonator, such as an inductor and capacitor, or a crystal, to sustain the oscillations. Oscillators are found in various electronics, from healthcare and industrial equipment to consumer electronics such as televisions and radios.The 7WA1472001 is a specific type of oscillator which produces a signal at a fixed frequency, usually in the medium radio frequency (roughly 2MHz - 30MHz) range. The 7WA1472001 application field includes wireless systems, such as radio and mobile phones, as well as GPS receivers and two-way radios. This oscillator uses an external oscillator and a varactor diode to generate the signal whereas the amplitude of the output signal is controlled by the current through the Varactor diode which can be optimized throughout the manufacturing for a specific application. The frequency of the oscillator is determined by two-resonator tank circuit and the amplitude by an internally combination of two current mirror circuits which drive the output amplifier. The 7WA1472001 inherits the features of both an oscillator and a varactor-diode-controlled oscillator (VCDO), and its operating frequency is adjustable.Typically, osicallators have wide variety of application fields and they serve important roles in many areas. The frequency of the oscillator output signal is particularly useful in communication systems, where various frequencies are needed to ensure successful transmission of data. This is true for the 7WA1472001; due to its adjustable frequency, it helps communications devices such as radios and cell phones work reliably. The 7WA1472001 oscillator is also useful in navigation systems such as GPS (Global Positioning System). The signal from the oscillator is used to set the frequency of the generated signal for satellite communication. GPS receivers require accurate frequency in order to ensure the accuracy of the position. Moreover, oscillators can be used as frequency reference in testing, controlling and measuring instrumentation. In systems such as Radar, the frequency of the oscillator helps to set the required frequency for the signal driving the antenna. In this way, the coherently data can be received and processed with the detector.In summary, the 7WA1472001 is a medium frequency oscillator which inherits both Oscillators and VCDO features. It is precisely designed to provide accurate and stable frequency signals, and is mainly employed in wireless systems for reliable communications, navigation systems such as GPS, and as a frequency reference in various testing, controlling and measuring instrumentation.

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