SIT8008BCB3-18E

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Programmable oscillators are electronic components that generate periodic electronic signals. They are usually implemented with an electronic oscillator circuit, which uses feedback and circuitry to lead to a stable, often sine wave output frequency and amplitude. A programmable oscillator is an electronic oscillator with an integrated microcontroller, and typically an input/output port. Programmability of these devices allows the user to store multiple configurations and dynamically select them depending on system state.

The SIT8008BCB3-18E is a programmable oscillator from SiTime Corporation, a leader in MEMS timing solutions. This versatile and cost-effective oscillator provides high accuracy and reliability for a wide range of applications in the industrial, medical, aerospace and defense markets.

Features

The SIT8008BCB3-18E is a high-performance programmable oscillator in a 3.2 mm x 2.5 mm x 0.8 mm SMD package. It is rated for 0.1ppm to 100ppm frequency accuracy and offers a wide frequency range of 4- to 120-MHz at 5V supply voltage. It has a maximum frequency pull range of +/-50 ppm and voltage control range of +/- 10 %. It has a low power consumption of 10 µA max and is designed to operate over a wide temperature range of -40°C to +105°C. It also provides ±50 ppm aging stability, with a maximum reference frequency of 100 kHz, and features 200-mW maximum output power dissipation. It has a programmable start/stop frequency range of 0.2 MHz to 10 MHz, a programmable ramp rate of 1 to 30000 Hz per minute, and a selectable on-time of 1 to 99 minutes.

Applications

The SIT8008BCB3-18E can be used in a wide range of applications in industrial, medical, aerospace, and defense markets. Its wide frequency range and high accuracy make it ideal for applications such as frequency control and synchronization in computers, test and measurement systems, telecom products, and radar systems. Its ultra low power consumption and small form factor makes the SIT8008BCB3-18E ideal for battery-operated and size-restricted applications in medical and portable electronics. The SIT8008BCB3-18E can also be used in automotive and other temperature-critical applications, as it is designed to operate over a wide temperature range.

Working Principle

The SIT8008BCB3-18E works by converting an analog voltage into a frequency. The oscillator uses a voltage-controlled oscillator (VCO) circuit which changes the output frequency with the input voltage. The VCO circuit includes an amplifier, which is the key element of the circuit. The amplifier is connected with a resistive voltage divider, usually composed of two resistors, and the output of the amplifier is used as the input to the oscillator. The output of the amplifier is sent through a low-pass filter, which filters out high-frequency noise, resulting in a clean and stable output frequency. The input and output of the VCO circuit are connected to an on-board microcontroller, which can be programmed with the desired frequency and other parameters such as the frequency pull range and voltage control range, allowing the user to quickly and easily set up the device.

Conclusion

The SIT8008BCB3-18E is a high-performance programmable oscillator, offering a wide frequency range, ultra low power consumption, and a reliable and cost-effective solution for a wide range of applications in the industrial, medical, aerospace and defense markets. Its programmable architecture makes it easy to set up and use, allowing the user to quickly and easily set up the device.

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