SIT9005ACE2H-30EK

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Programmable Oscillators are electronic components that are used to generate a periodic signal, typically a sinusoidal waveform. Such oscillators provide frequency control and programmability to applications that require a stable and accurate source of signal frequency. The SIT9005ACE2H-30EK is a digitally-controlled, programmable oscillator (DCO) designed to deliver superior frequency stability and low-power performance. The device utilizes an Electrically Programmable Oscillator (EPO) technology to achieve frequency accuracy and stability of ±0.5 PPM over temperature. The device also offers low-power consumption and a wide tuning range, making it a suitable choice for applications where low jitter, low phase noise and high frequency stability are required.

The SIT9005ACE2H-30EK offers a wide frequency range of between 32kHz and 150MHz, an array of temperature range option (from -40°C to 85°C and from -20°C to 105°C). The device also supports programmability through a 3, 4 or 5-wire serial interface which must be provided with an external reference clock, as well as output duty cycle adjust. The device supports single-output, dual-output, and tri-output configurations.

The SIT9005ACE2H-30EK is suitable for a broad range of application fields including telecommunications, navigation, security, audio/video, automotive, aerospace and industrial. Common applications include driving clock inputs (such as PLLs and FPGAs) and line drivers, monitoring temperature, frequency measurement and as a frequency reference.

The working principle behind the SIT9005ACE2H-30EK is based on Electrically Programmable Oscillator (EPO) technology. The EPO approach utilizes an electronically tunable amplifier topology to control the frequency. The device also uses a Digitally Controlled Oscillator (DCO) technology to achieve outstanding frequency accuracy and stability. The device also uses an on-chip digital phase-locked-loop (PLL) to achieve low jitter and low phase noise.

The device is designed to be configurable in both frequency and duty cycle and is programmable using the three-wire serial interface (SPI). A 3.3V supply is used to program the device, set the internal register bits, and set the output frequency. The reference frequency is applied to the external oscillator and the output frequency is then generated, with the duty cycle being programmable using the last two bits of the register. The external reference frequency can also be parameterized.

The SIT9005ACE2H-30EK is an ideal choice for applications that require high frequency accuracy, low power consumption and flexibility. The device has been found to deliver superior frequency stability and low-power performance and is suitable for a broad range of application fields requiring low jitter and low phase noise.

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