SIT9120AC-2B3-33S148.500000Y

Frequency Stability:	±50ppm
Current - Supply (Disable) (Max):	35mA
Height - Seated (Max):	0.032" (0.80mm)
Size / Dimension:	0.126" L x 0.098" W (3.20mm x 2.50mm)
Package / Case:	6-SMD, No Lead
Mounting Type:	Surface Mount
Ratings:	--
Current - Supply (Max):	55mA
Operating Temperature:	-20°C ~ 70°C
Series:	SiT9120
Voltage - Supply:	3.3V
Output:	LVDS
Function:	Standby (Power Down)
Frequency:	148.5MHz
Type:	XO (Standard)
Base Resonator:	MEMS
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

The SIT9120AC-2B3-33S148.500000Y oscillator is a highly integrated oscillator with excellent accuracy and performance. It is a fully integrated oscillator transceiver chip with high flexibility and small size. It has a very wide application field including automotive, automotive control, mobile, power, security, navigation, information and communication, energy systems, communications networks, etc. This paper will discuss the technical features and work principle of this oscillator, as well as its application fields.

Features and Specification

The SIT9120AC-2B3-33S148.500000Y oscillator is an improved version of the SIT9120AC device and the addition of power and ground saving features provides significant gains in power consumption. The SIT9120AC-2B3-33S148.500000Y oscillator has a frequency range of 200 Hz to 2.2 GHz and a resolution bandwidth of 2.5kHz to 50kHz. It has a frequency accuracy of better than ±2 ppm (parts per million) and a phase noise of -130dBc/Hz at 1kHz offset. The supply voltage of the chip ranges from 1.5v to 5 volts and it operates in a temperature range of -40 to +85 degrees Celsius.

Working Principle

The SIT9120AC-2B3-33S148.500000Y oscillator is based on phase-locked loop (PLL) architectures that consist of a voltage-controlled oscillator (VCO), phase detector, filter, and a divide-by-N divider. In the simplest form, the voltage-controlled oscillator is driven by a stabilized DC voltage input that objects to variations in the supply voltage. The frequency of the VCO can then be tuned by varying the supply voltage.The phase-detector takes this input signal and compares it against the output of the divider using the PLL feedback loop. If there is an error, the phase detector will change the output voltage of the VCO in order to correct the error. The filter is then used to reduce the error. This loop is then repeated to create a stable output signal at a certain frequency.

Applications and Advantages

The SIT9120AC-2B3-33S148.500000Y oscillator is mainly applied in communication applications such as communication transceivers and network terminals to achieve high accuracy. It is also used in automotive and mobile applications to provide accurate timing. The oscillator is ideal for many types of applications due to its low power consumption, small size, high frequency accuracy, and noise suppression capabilities. The oscillator also provides resilience against various environmental conditions including temperature, humidity, and shock.

Conclusion

The SIT9120AC-2B3-33S148.500000Y oscillator is a highly integrated device with excellent accuracy and performance. The oscillator is based on PLL architectures and its frequency can be tuned by varying the supply voltage. It is mainly applied in communication applications such as communication transceivers and network terminals to achieve high accuracy. In addition, it is also used in automotive and mobile applications. The oscillator is ideal for many types of applications due to its low power consumption, small size, high frequency accuracy, and noise suppression capabilities.

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