Frequency Stability:	--
Current - Supply (Disable) (Max):	4mA
Height:	0.031" (0.79mm)
Size / Dimension:	0.126" L x 0.098" W (3.20mm x 2.50mm)
Package / Case:	4-SMD, No Lead
Mounting Type:	Surface Mount
Ratings:	--
Current - Supply (Max):	4.1mA
Spread Spectrum Bandwidth:	--
Operating Temperature:	-40°C ~ 85°C
Frequency Stability (Total):	±20ppm
Series:	SiT1602
Voltage - Supply:	1.8V
Output:	LVCMOS
Function:	Enable/Disable
Available Frequency Range:	3.57MHz ~ 77.76MHz
Programmable Type:	Programmed by Digi-Key (Enter your frequency in Web Order Notes)
Type:	XO (Standard)
Base Resonator:	MEMS
Part Status:	Active
Packaging:	Tube

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Programmable Oscillators: SIT1602BIT2-18E Application Field and Working Principle

Programmable oscillators are electronic components able to be programmed to generate a desired frequency and output waveform. They can be used in a variety of applications, including signal processing, frequency modulation, signal generation, and communication. The SIT1602BIT2-18E programmable oscillator is a particularly versatile solution. The following discusses its application field and working principle.

Application Field

The SIT1602BIT2-18E programmable oscillator is ideal for applications where fast switching speeds, precision frequency control and low power consumption are required. Examples of such applications include:

• Cell Phones and Wireless Devices: The SIT1602BIT2-18E programmable oscillator is well suited for use in frequency synthesizers used in cell phones and other wireless devices.
• Radio Broadcasting: The SIT1602BIT2-18E can be used in transmitter applications for radio broadcasting, providing accurate frequency control.
• High-Speed Network Systems: The fast switching speed and accuracy of this programmable oscillator make it ideal in applications such as high-speed data networks.
• Broadband Applications: The oscillator is also useful in broadband applications such as internet gateways, modems, and cable television.

Working Principle

The SIT1602BIT2-18E is based on a programmable modulated time delay line, allowing the frequency it generates to be set precisely. The device is composed of two parts – a programmable frequency synthesizer and a digital controlled oscillator (DCO). The frequency synthesizer is used to set the desired frequency. The DCO then produces a stable output frequency from a wide range of combinations of resistor and capacitor values.The frequency synthesizer consists of two logic elements – a counter and a phase comparator. The counter functions as a divider, receiving and counting clock pulses from a reference oscillator. The phase comparator compares the divided signal from the counter to the frequency of the reference oscillator. When the two signals match, the phase comparator sends a pulse to the counter, resetting it and causing the output frequency to reset as well. This cycle is repeated, allowing the frequency of the output signal to be precisely controlled.

Conclusion

The SIT1602BIT2-18E is a versatile and powerful programmable oscillator ideal for use in applications where fast switching speed, precision frequency control and low power consumption are required. Its combination of a frequency synthesizer and DCO allows for easy setup and accurate control over the output frequency. Its wide range of applications make it a great choice for many applications.

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