SIT9002AC-48N25DG

Frequency Stability:	±25ppm
Height:	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):	80mA
Spread Spectrum Bandwidth:	±1.00%, Center Spread
Operating Temperature:	-20°C ~ 70°C
Frequency Stability (Total):	--
Series:	SiT9002
Voltage - Supply:	2.5V
Output:	HCSL
Function:	--
Available Frequency Range:	1MHz ~ 220MHz
Programmable Type:	Programmed by Digi-Key (Enter your frequency in Web Order Notes)
Type:	XO (Standard)
Base Resonator:	MEMS
Part Status:	Active
Packaging:	Bulk

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Programmable Oscillators: SIT9002AC-48N25DG Application Field and Working Principle

Programmable oscillators are dynamic components used to generate frequencies at a precise level with a minimum of components and expenditure. They can be used in many different applications ranging from digital communication, medical devices, and industrial control applications to RF devices and instrumentation. This article discusses the programmable oscillator SIT9002AC-48N25DG and its application field and working principle.The SIT9002AC-48N25DG is a surface-mounted device programmable oscillator from the Stanford Microdevices range. It is a low-cost digital synthesizer that is designed to provide reliable and precise clock signals for various types of products. It offers low cost, low power consumption, low jitter, wide range frequency output and accurate frequency control. The SIT9002AC-48N25DG supports a wide frequency range from 0.18 MHz to 416 MHz and a wide range of output formats including LVCMOS, LVTTL, LCX, HCSL and HCSD.In terms of application field, the SIT9002AC-48N25DG is commonly used in a wide range of embedded applications, such as wireless communication products, automotive ECU and the Internet of Things (IoT). It is also used in wireless base station boards, radar systems, antennas, industrial computers and mobile phones.As for its working principle, the SIT9002AC-48N25DG is a digitally controlled oscillator (DCO) which allows users to directly program the frequency output by loading a set of digital parameters. It consists of a CMOS oscillator plus an on-chip clock multiplier, both of which are integrated into the chip. The frequency of the oscillator is determined by the RC stage, in which the timing constant can be defined by the on-chip resistor and external capacitor.The SIT9002AC-48N25DG also utilizes a programmable bandgap frequency reference and a CMOS divider to provide an accurate frequency range with minimal phase noise. The programmable frequency references of the device are achieved by using a range of adjustable resistor and capacitor settings on the chip. This allows users to define the reference frequency range, which provides the oscillator with a high degree of stability.The programmable parameters of the SIT9002AC-48N25DG are set by configuring the hardware frequency, startup delay, firmware configuration, temperature offset, frequency variation and capture range with the help of an external programmer. Once all the parameters are set, the oscillator can be used to generate a wide range of frequencies with a high degree of accuracy.The SIT9002AC-48N25DG offers several advantages in comparison to traditional oscillators. The main advantages are its low-power consumption and excellent frequency accuracy. It also offers a wide range of frequency output options, including both digital and analog outputs. Additionally, the programmable nature of the device allows for custom modifications that can be tailored to specific application needs.In conclusion, the SIT9002AC-48N25DG is a versatile and reliable programmable oscillator from the Stanford Microdevices range. It offers low power consumption, low jitter and wide frequency output with high accuracy. Its programmability also allows for custom modifications tailored to specific application needs, making it a reliable and cost-effective choice for many applications.

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