SIT9005ACR1D-28EA

Frequency Stability (Total):	--
Current - Supply (Disable) (Max):	6.5mA
Height:	0.030" (0.76mm)
Size / Dimension:	0.098" L x 0.079" W (2.50mm x 2.00mm)
Package / Case:	4-SMD, No Lead
Mounting Type:	Surface Mount
Ratings:	--
Current - Supply (Max):	6.5mA
Spread Spectrum Bandwidth:	-0.25%, Down Spread
Operating Temperature:	-20°C ~ 70°C
Series:	SIT9005
Frequency Stability:	±20ppm, ±25ppm, ±50ppm
Voltage - Supply:	2.8V
Output:	LVCMOS
Function:	Enable/Disable
Available Frequency Range:	1MHz ~ 141MHz
Programmable Type:	Programmed by Digi-Key (Enter your frequency in Web Order Notes)
Type:	SSXO
Base Resonator:	MEMS
Part Status:	Active

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Programmable oscillators are electrical circuits that can produce a range of frequencies and stable timing signals. They are typically used in computers, communications networks, embedded systems and other electronic devices. The SIT9005ACR1D-28EA is one type of programmable oscillator, which is designed for use in applications such as CPU, Segmented Timers, System Interrupt Controllers, and PLL designs.The SIT9005ACR1D-28EA is a quartz MEMS-based oscillator. It is a four-pin device, connected to a 2.705V power supply and operates over a frequency range of 4kHz to 900MHz. It offers a frequency stability of ±10ppm and peak-to-peak jitter of less than 0.6ps.The SIT9005ACR1D-28EA uses a programmable oscillator controller (POC) chip to control the operation of the oscillator. The POC is a small integrated circuit that contains a series of registers. These registers are used to store information specific to the operation of the oscillator, such as the frequency, frequency divider, output amplitude, and phase locked loop (PLL) setting.The frequency range of the SIT9005ACR1D-28EA is programmable. This feature allows for flexibility in its application. The user can select the frequency by programming the registers of the POC chip. The PLL setting can also be programmed, allowing for improved frequency stability and phase noise performance.In addition to the POC, the SIT9005ACR1D-28EA also has an analog section which contains the crystal oscillator and sensing circuits. The quartz crystals used in the oscillator are temperature compensated to maintain a high level of stability over a range of temperatures. The output amplitude of the oscillator is also adjustable. This allows for custom pulses with adjustable amplitude to be generated.The SIT9005ACR1D-28EA is also equipped with an automatic calibration circuit. This circuit monitors the frequency of the quartz oscillator and adjusts the frequency divider as necessary to ensure the output frequency remains within the specified range.The SIT9005ACR1D-28EA has several applications. It can be used in communications and networking products, microprocessor-based equipment, automotive systems, and other embedded applications. It is an ideal choice for frequency-critical applications due to its low power consumption, small size, and high frequency stability.In summary, the SIT9005ACR1D-28EA is a programmable oscillator designed for use in frequency-sensitive applications such as communications, automotive, and embedded systems. It consists of a quartz oscillator, programmable oscillator controller, and automatic calibration circuit, which together ensure the device has a wide frequency range and high levels of frequency stability. The SIT9005ACR1D-28EA is a versatile and reliable choice for a wide range of applications.

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