AX7DAF1-156.2578T

Absolute Pull Range (APR):	--
Current - Supply (Disable) (Max):	65mA
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):	70mA
Operating Temperature:	-40°C ~ 85°C
Series:	Clearclock™ AX7
Frequency Stability:	±25ppm
Voltage - Supply:	3.3V
Output:	LVDS
Function:	Enable/Disable
Frequency:	156.2578MHz
Type:	XO (Standard)
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

Oscillators are electronic components used to generate periodic electrical signals. Oscillators can be used to generate signals with frequencies ranging from a few hertz to several hundred gigahertz. Oscillators are used in a wide variety of applications such as frequency references for measurement and calibration, time keeping, communications, instrumentation, and control. AX7DAF1-156.2578T is one type of oscillator which is widely used in communication industry. This article will introduce the application field and working principle of AX7DAF1-156.2578T oscillator.

Application Field

AX7DAF1-156.2578T oscillator is widely used in cellular base station and satellite communication, as well as Medium Access Control (MAC) layer of Point-to-Multipoint (PMP) architectures. In these applications, AX7DAF1-156.2578T oscillator provide stable and accurate clock signals, which are essential for the proper functioning of the base station and other communication systems. In addition, AX7DAF1-156.2578T oscillator can also be used in computer network systems for time synchronization and control.

Working Principle

AX7DAF1-156.2578T oscillator is a frequency-locked loop (FLL) oscillator. The FLL oscillator uses phase cancellation techniques to provide a stable oscillating signal. The structure of the AX7DAF1-156.2578T oscillator consists of a voltage-controlled oscillator (VCO), a loop filter and a reference generator. The VCO produces an output signal whose frequency is proportional to the input voltage. The loop filter is used to filter high-frequency components from the output of the VCO, and the reference generator is used to provide a reference frequency to the FLL oscillator.The VCO is driven by an external voltage, which is then compared with the reference signal in the FLL oscillator. Depending on the difference between the two signals, the VCO is adjusted to maintain an oscillation frequency that is close to the reference frequency. When the difference between the two signals is minimized, the FLL oscillator is said to be in phase lock, and the output frequency of the VCO is locked to the reference frequency. The FLL oscillator is designed to operate over a wide range of frequencies, from several kilohertz to several hundred megahertz.The AX7DAF1-156.2578T oscillator provides an output signal with an accuracy of better than 150 ppm over a temperature range of -40 to 85 °C, ensuring stable and accurate operation.

Conclusion

AX7DAF1-156.2578T oscillator is a type of frequency-locked loop oscillator which is widely used in cellular base station and satellite communication, as well as Medium Access Control (MAC) layer of Point-to-Multipoint (PMP) architectures. It provides an output signal with an accuracy of better than 150 ppm over a temperature range of -40 to 85 °C, ensuring stable and accurate operation. The FLL oscillator uses phase cancellation techniques to provide a stable oscillating signal, and consists of a voltage-controlled oscillator (VCO), a loop filter and a reference generator.

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