SIT3822AC-1D-33NZ

Frequency Stability:	±10ppm
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):	69mA
Spread Spectrum Bandwidth:	--
Operating Temperature:	-20°C ~ 70°C
Frequency Stability (Total):	--
Series:	SiT3822
Voltage - Supply:	3.3V
Output:	LVPECL
Function:	--
Available Frequency Range:	220MHz ~ 625MHz
Programmable Type:	Programmed by Digi-Key (Enter your frequency in Web Order Notes)
Type:	VCXO
Base Resonator:	MEMS
Part Status:	Active
Packaging:	Bulk

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Programmable Oscillators are a class of oscillator devices that vary its frequency and timing properties in accordance with an external programmable input. The SIT3822AC-1D-33NZ is among the most used programmable oscillator devices available in the market. This article will look at the application field and working principle of the device. The SIT3822AC-1D-33NZ is specifically a low-voltage, low-current programmable oscillator intended for use in advanced embedded systems, consumer appliances, and communications applications. It combines small package options, low power consumption, and high accuracy. This makes it the perfect choice when needing superior performance with limited space. The device provides an adjustable frequency output of 1.5 MHz to 33 MHz with a low voltage tolerance of 0.7V and low operating temperature of -40°C to +85°C. The oscillator is suitable for applications such as DRAM memory and memory controllers, communications products, automotive, audio/video, imaging, and general industrial applications. Aside from being low power, the device offers high-frequency accuracy with tight frequency tolerances as low as ±50 ppm. In addition, it can deliver simultaneous symmetrical/asymmetrical clock signals and/or Spread Spectrum Clock (SSC) over a frequency range of -0.0052% to +0.0058%. In terms of its working principle, the SIT3822AC-1D-33NZ utilizes a programmable logic array (PLA) and integrated voltage-controlled oscillator (VCO). An external input voltage applied to the programmable input terminals determines the oscillator\'s frequency. The internal PLA processing does not require any voltage references or external components to control or adjust the oscillator operation, making it simpler to use than other programmable oscillators. A single supply input of 2.7 V to 3.6 V is required to power the device. Its internal oscillator frequency can be tuned from a minimum of 1.5MHz up to 33MHz. The oscillator contains an on-chip temperature sensing circuit along with a temperature compensated oscillator (TCXO). The TCXO provides very stable frequency over temperature variations and can be ±50ppm temperature compensated over a range from -40°C to +85°C. The TCXO also features some parameters, such as frequency accuracy, aging rate of center frequency, maximum frequency drift, and deviation per 1K temperature change. The SIT3822AC-1D-33NZ also offers an array of output characteristics, frequency stability discipline, single and dual-frequency outputs, and I-CMOS output structures. The I-CMOS output structures offer very low EMI noise, current drive capability, low ripple and low profile output characteristics. Overall, the SIT2282AC-1D-33NZ is a precise and reliable programmable oscillator intended for use in embedded and communications applications. It is capable of providing a precise and accurate output frequency from 1.5MHz to 33MHz which is stable across a wide temperature range. The device also maintains a low power consumption and can deliver close tolerance frequency accuracy of up to ±50ppm.

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