SIT9120AI-1D2-XXS166.660000X

Frequency Stability:	±25ppm
Current - Supply (Disable) (Max):	35mA
Height - Seated (Max):	0.039" (1.00mm)
Size / Dimension:	0.276" L x 0.197" W (7.00mm x 5.00mm)
Package / Case:	6-SMD, No Lead
Mounting Type:	Surface Mount
Ratings:	--
Current - Supply (Max):	69mA
Operating Temperature:	-40°C ~ 85°C
Absolute Pull Range (APR):	--
Series:	SiT9120
Voltage - Supply:	2.25 V ~ 3.63 V
Output:	LVPECL
Function:	Standby (Power Down)
Frequency:	166.66MHz
Type:	XO (Standard)
Base Resonator:	MEMS
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

The SIT9120AI-1D2-XXS166.660000X oscillator is a voltage-controlled oscillator (VCO) component developed by Surecom for frequency synthesis applications. A variety of widely used VCO technologies are available in a very small package with the most remarkable technology of the SIT9120AI series of oscillators being their non-volatile, low power consumption and high stability. It is capable of operating up to +85 degree Celsius temperature and is rated to withstand high voltage transient surges.

Application Fields

The SIT9120AI-1D2-XXS166.660000X oscillator is designed for use in a variety of frequency synthesis applications such as phase-locked loop (PLL) systems, frequency synthesizers, and other frequency control electronics systems. It is also used in wireless communication systems, Ethernet equipment, and fibre optic devices, as well as in industrial instruments and medical devices.

Working Principle

The SIT9120AI-1D2-XXS166.660000X oscillator is comprised of an integrated circuit and an external passive component network. The integrated circuit consists of a highly stable voltage controlled oscillator (VCO) with a frequency range from 40kHz to 200MHz. The external passive component network includes an adjustment-enhancement capacitor, a voltage-controlled capacitance, and an external resistor.The oscillator works by generating an output voltage based on the input control voltage. The voltage-controlled capacitance, the adjustment-enhancement capacitor, and the external resistor manipulate the control voltage to create the desired output frequency. The adjusting capacitor changes the frequency range of the oscillator, while the voltage-controlled capacitance and the external resistor are responsible for loading the control voltage. The lower the load of the external resistor, the higher the output frequency.

Conclusion

The SIT9120AI-1D2-XXS166.660000X oscillator is a state-of-the-art frequency-synthesizing component developed by Surecom for application in a variety of electronic devices. Its unique combination of highly stable VCO technology, low power consumption, and flexibility allows it to be used in a wide range of applications. Its working principle is based on a highly stable VCO with an external resistor, voltage-controlled capacitance, and adjustment-enhancement capacitor, used to manipulate the control voltage and generate the desired output frequency.

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