FN2500161

Frequency Stability:	±50ppm
Current - Supply (Disable) (Max):	10µA
Height - Seated (Max):	0.071" (1.80mm)
Size / Dimension:	0.276" L x 0.197" W (7.00mm x 5.00mm)
Package / Case:	4-SMD, No Lead
Mounting Type:	Surface Mount
Ratings:	--
Current - Supply (Max):	15mA
Operating Temperature:	-40°C ~ 85°C
Series:	SaRonix-eCera™ FN
Voltage - Supply:	3.3V
Output:	CMOS
Function:	Enable/Disable
Frequency:	25MHz
Type:	XO (Standard)
Base Resonator:	Crystal
Part Status:	Active
Packaging:	Bulk

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Oscillators

• FN2500161 Application Field and Working Principle

The FN2500161 oscillator is a temperature-controlled crystal oscillator (TCXO), which is a type of oscillator widely used in many industries. It is mainly used in the marine navigation, civil aviation and related satellite positioning systems. It is especially suitable for applications requiring high stability and low phase noise, such as communications, high-end electronic equipment, automotive electronics, military and aerospace applications. It also has the advantages of tiny size, low power consumption and wide frequency range.The basic working principle of the FN2500161 oscillator is based on the physics of the vibration of a solid crystal plate. A crystal oscillator is typically made up of an oscillation generating element, an electronic control system, and a frequency-determining circuit. It can be used for short-term timing control and/or long-term periodic signal output. The oscillating element is the crystal plate, which is usually made of quartz crystal, and it vibrates when exposed to an external static electric field. The frequency of the crystal oscillator can be precisely controlled via voltage and other external control, and the frequency stability is determined by the characteristics of the crystal plate.This FN2500161 oscillator is designed to use a temperature-controlled crystal resonator (TCXO). This TCXO module contains a temperature sensor and a precise heater. When the temperature of the crystal oscillator changes, the temperature sensor detects the change in temperature and feeds the signal to the voltage control circuit. The voltage control circuit then adjusts the power supplied to the heater to maintain the original oscillator frequency.The frequency range of the FN2500161 oscillator is from 5 MHz to 25MHz, and it has a frequency stability of ± 0.5ppm over the temperature range of -10℃ to +55℃. It also has a low phase noise performance with a maximum noise level of -122dBc/Hz at 10KHz offset from the carrier.In addition, the FN2500161 oscillator has a small size of only 12.0 x 8.0 x 2.5mm and low power consumption of less than 3.3 mA. It offers both TTL and CMOS output in full-swing or differential output. With internal voltage control, integrated oscillator trimming adjust and excellent frequency stability, the FN2500161 oscillator is highly reliable and widely used in many applications such as navigation, communications, medical, test instruments and metering products.In conclusion, the FN2500161 oscillator is a temperature-controlled crystal oscillator, which is suitable for applications requiring high stability and low phase noise. It has a wide frequency range, low power consumption, and a frequency stability of ± 0.5ppm over the temperature range of -10℃ to +55℃. The oscillator also has the advantages of small size, low power consumption, internal voltage control and integrated oscillator trimming adjust. Due to these advantages, this oscillator is widely used in many marine navigation, civil aviation and other satellite positioning system applications.

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