SIT3821AI-2D-33EH

Programmable oscillators, due to their versatility, are used in a variety of applications. One such oscillator is the SIT3821AI-2D-33EH. This oscillator is a two-phase, low noise, low power, oscillator which can be programmed to a wide range of frequency and phase settings. It is designed to provide stable and reliable oscillation over a variety of temperature, voltage, and load conditions.

The SIT3821AI-2D-33EH has a built-in phase detector, programmable charge pump and dual on-chip loop filters providing for programmable control voltage settings to suit any application. The oscillator has a wide operating temperature range of -65°C to +150°C and an operating voltage range of 0.5V to 4Vp-p. The typical phase noise of this oscillator is in the range of -80dBc/Hz.

The working principle of the SIT3821AI-2D-33EH is based on the phase-locked loop (PLL) in which the output frequency is locked in phase with the input reference signal. The PLL consists of three major components: a phase detector, a programmable charge pump, and a dual on-chip loop filter. The phase detector compares the phase of the input reference signal to the phase of the oscillator output and generates an error signal. This error signal is then used by the charge pump to change the control voltage, which in turn affects the output frequency and phase of the oscillator.

The SIT3821AI-2D-33EH can be used in a variety of applications including communications, instrumentation, aerospace, automotive, and medical. It is ideal for applications that require precision clock synchronization, such as spread-spectrum and time-division-multiplexed (TDM) communication systems, frequency synthesis in instrumentation, radio-frequency (RF) wireless communications, and timing/synchronization applications. The SIT3821AI-2D-33EH also offers a wide array of features such as a wide operating temperature range, low phase noise and a programmable charge pump.

In summary, the SIT3821AI-2D-33EH is a highly efficient, two-phase, programmable oscillator designed for use in a variety of applications. It provides stable and reliable oscillation over a wide range of temperature, voltage, and load conditions. The oscillator has a wide operating temperature range, low phase noise and a programmable charge pump, making it ideal for a wide range of applications such as communications, instrumentation, aerospace, automotive, and medical.