AX7PAF1-153.6000T

Absolute Pull Range (APR):	--
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
Series:	Clearclock™ AX7
Frequency Stability:	±25ppm
Voltage - Supply:	3.3V
Output:	LVPECL
Function:	Enable/Disable
Frequency:	153.6MHz
Type:	XO (Standard)
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Oscillators are electronic components that produce repetitive signals at a desired frequency when a low frequency driving current is applied. Major oscillator types include crystal oscillators, RC oscillators, LC oscillators, and voltage-controlled oscillators. As an example, this article will explore the AX7PAF1-153.6000T in terms of its application field and working principle.The AX7PAF1-153.6000T is a SMD type TCXO (Temperature Compensated Crystal Oscillator) from Mitelax Company. It can output rectified (positive half wave) sine wave signals in the Hz frequency range when a low frequency driving current is applied, and it is designed for use in applications such as cellular phones, medical equipment, and network equipment. The features of the AX7PAF1-153.6000T include a low phase noise of -155dBc@1KHz, a low supply current of 0.8mA, and a very low aging rate of 0.6ppm/year.At a more technical level, the AX7PAF1-153.6000T utilizes a Pierce oscillator circuit using temperature-compensated quartz crystals for its operation. It contains two main components: the quartz crystal and its associated integrated circuit. It uses a quartz crystal as an LC network to achieve electrical oscillation over a wide frequency range. This LC network is connected to the input and output pins of the associated integrated circuit. The quartz crystal has a low temperature coefficient which allows the temperature-compensated oscillator to maintain a stable output frequency over a wide temperature range.The Pierce oscillator circuit uses an amplifying switch that alternately charges and discharges the quartz crystal at a given frequency. This produces a sinusoidal output signal at a rate determined by the parameters of the quartz crystal and the associated integrated circuit. The amplitude and frequency of the output signal are determined by controlling the duty cycle of the signal and the bias of the amplifying switch. The compensation of the output signal is carried out by a temperature-sensitive element located near the quartz crystal. The temperature-sensitive element amplifies the output signal at lower temperatures and attenuates it at higher temperatures, thus maintaining a stable output frequency over a wide temperature range.In conclusion, the AX7PAF1-153.6000T is an oscillator that can produce sinusoidal output signals in the Hz frequency range with low noise and low phase ripple. Its low supply current, low aging rate, and low temperature coefficient make it an ideal solution for applications requiring accurate and stable frequency references.

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