AX7PAF4-156.2500C

Frequency Stability:	±25ppm
Current - Supply (Disable) (Max):	86mA
Height - Seated (Max):	0.075" (1.90mm)
Size / Dimension:	0.276" L x 0.197" W (7.00mm x 5.00mm)
Package / Case:	8-SMD, No Lead
Mounting Type:	Surface Mount
Ratings:	--
Current - Supply (Max):	94mA
Operating Temperature:	-40°C ~ 85°C
Absolute Pull Range (APR):	--
Series:	Clearclock™ AX7
Voltage - Supply:	3.3V
Output:	LVPECL
Function:	Enable/Disable
Frequency:	156.25MHz
Type:	XO (Standard)
Base Resonator:	Crystal
Part Status:	Active
Packaging:	Strip

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Oscillators:AX7PAF4-156.2500C

Oscillators – also known as timing circuits and frequency control circuits – are essential components in most electronic devices. They are commonly used to generate a repetitive electronic signal of a specific frequency and amplitude, providing timing and synchronisation within circuits. Among the many types of oscillators, the AX7PAF4-156.2500C is particularly versatile, making it a popular option for a variety of applications. This article explores the AX7PAF4-156.2500C\'s application fields and working principle.The AX7PAF4-156.2500C is a single-frequency oscillator made of a metal oxide semiconductor field-effect transistor (MOSFET) with a 25 kHz center frequency accuracy. It offers many advantages, which have enabled its widespread use across industrial, medical, and research applications. The AX7PAF4-156.2500C\'s accuracy and stability is one of its main benefits. It has a temperature coefficient of -2.5 ppm/C (±2.5 parts per million per Celsius degree Celsius), making it especially suitable for precision applications where accuracy is of paramount importance. It is also available with a range of centre frequency tolerances from ±25 ppm down to ±0.3 ppm, giving users greater flexibility when selectiong oscillators for their projects. Additionally, the AX7PAF4-156.2500C\'s low-power consumption (5V voltage supply) and wide supply voltage range up to -5V/5V make it very energy efficient and suitable for extended usage in different power supply environments.The AX7PAF4-156.2500C is suited to a variety of applications, including digital radio-frequency (RF) transceivers, microwave oscillators, and sub-MHz single-frequency applications. Its few external components make it highly suitable for modern high-density circuit designs and it is easily adaptable to a wide variety of circuit boards. This makes it the perfect choice for many different systems.In terms of working principle, the AX7PAF4-156.2500C uses a capacitance-feedback (CFB) oscillration circuit structure working along with a resistor-capacitor (RC) circuit to determine the oscillation frequency. This arrangement enables it to maintain constant output despite changes in operating temperature. The precise output frequency is determined by the RC circuit, which consists of two resistors and two capacitors. The resistors set the output current, with the capacitors controlling the phase shift between the outputs of transistor Q1 and Q2 and the inverting output. When these two signals become 180° out of phase, the AX7PAF4-156.2500C delivers a stable output waveform at the set frequency.In summary, the AX7PAF4-156.2500C is highly versatile oscillator, offering precision accuracy and stability, ease of use, and low power consumption. These features make the AX7PAF4-156.2500C ideal for applications in digital RF transceivers, microwave oscillators, and sub-MHz single-frequency systems. Its CFB oscillation circuit and RC circuit arrangement also ensures a stable and precise output, whatever the operating temperature.

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