SIT8008BCB3-18S

Programmable Oscillators

Programmable oscillators are a type of electronic oscillator that allows the user to program the various parameters of the oscillator. These parameters can be frequency, phase, and duty cycle. The SIT8008BCB3-18S is one such oscillator. It is a low-cost CMOS programmable oscillator with a -40 °C to +85°C stability rating, 4 pad PCB package, 0.01-50 MHz frequency range and an operating temperature range of -40°C to +85°C.

Applications

The SIT8008BCB3-18S provides a cost effective solution for timing applications that require fast frequency adjustment and stable long term frequency stability. The versatile frequency range and low cost has made them especially popular for applications such as frequency synthesizing, instrumentation, and telecommunications. They are particularly well-suited for sparse frequency programming applications, such as a frequency selective counter, or for sweep frequency testing.

Working Principle

The SIT8008BCB3-18S oscillator works on the principle of Voltage Controlled Oscillator (VCO). A VCO is a type of electronic oscillator whose oscillation frequency is controlled by a voltage input. In the case of the SIT8008BCB3-18S, the oscillator is controlled by an external voltage applied to its control pin. The internal components are composed of a CMOS device and an external resistor-capacitor network that form an RC oscillator circuit. This oscillator circuit is composed of an RC network and an operational amplifier to buffer the capacitance, which in turn amplifies the current to reproduce the chosen frequency.

In operation, the SIT8008BCB3-18S is connected to an external voltage source. This external voltage source is used to control the frequency of the oscillator. The voltage can be adjusted to compensate for changes in temperature, supply voltage, and variations in load on the oscillator circuit. The frequency of the oscillator can be adjusted within the range of 0.01-50MHz.

The SIT8008BCB3-18S is also equipped with an on-chip regulator that provides a stable supply voltage to the oscillator circuit, allowing it to maintain its frequency accuracy over a wide range of operating conditions.

Finally, the SIT8008BCB3-18S is designed to provide a low power consumption and low profile, making it ideal for applications where power is at a premium.

Conclusion

The SIT8008BCB3-18S offers a reliable and cost effective solution for frequency adjustment applications that require fast adjustment and long term frequency stability. Its low profile and low power consumption make it an ideal choice for applications where these features are important.