SIT9005ACE1H-28SA

Frequency Stability (Total):	--
Current - Supply (Disable) (Max):	4.3µA
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:	±0.125%, Center Spread
Operating Temperature:	-20°C ~ 70°C
Series:	SIT9005
Frequency Stability:	±20ppm, ±25ppm, ±50ppm
Voltage - Supply:	2.8V
Output:	LVCMOS
Function:	Standby
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

Programmable oscillators, also known as digitally controlled oscillators (DCOs), are an increasingly popular type of oscillator due to their versatility and ability to be programmed to create different signals quickly and precisely. The SIT9005ACE1H-28SA is a programmable oscillator that is used in many applications such as telecommunication, navigation systems, and test equipment. This section will discuss the application fields for the SIT9005ACE1H-28SA and its working principle.

Applications

The SIT9005ACE1H-28SA is an advanced oscillator that offers superior performance and high reliability in challenging environments. It can be used for a wide range of frequency-dependent applications, such as wireless communications devices, navigation systems, test and measurement equipment, and audio equipment. Its precision and stability make it ideal for situations involving synchronous data transfer and time synchronization.The SIT9005ACE1H-28SA oscillator is also well-suited for analog and digital signal processing. It can be used to provide precise local oscillator signals for AM/FM receivers, as well as for video transmitter/receiver applications. It is also used to generate vertical or horizontal synchronization signals for applications such as video projectors and CRT monitors.

Working Principle

The SIT9005ACE1H-28SA is a digitally programmed oscillator, which means that its frequency can be adjusted in minute increments using an external digital interface. It has an internal low-noise phase-locked loop (PLL) structure, which enables stable and accurate frequency control.The PLL consists of two main components: a voltage-controlled oscillator (VCO) and a frequency-locked loop (FLL). The VCO is essentially a free-running oscillator, while the FLL determines the frequency at which the VCO is operating. The desired frequency is programmed into the PLL via an external digital interface.In operation, the PLL compares the output of the VCO with the external reference signal. If there is a discrepancy, the PLL automatically adjusts the VCO frequency to the programmed frequency until it matches the reference signal. This ensures that the output of the PLL is always at the desired frequency, thus providing the reliable and consistent performance required for critical applications.

Conclusion

The SIT9005ACE1H-28SA is an advanced programmable oscillator that can be used for a wide range of applications. It is highly stable and accurate, thanks to its integrated PLL structure, which allows for precise frequency adjustment. Its flexibility makes it an ideal choice for applications in telecommunication, navigation systems, test and measurement equipment, and audio equipment.

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