SIT9005ACE1D-30DP

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Programmable Oscillators provide digital control and flexibility while also serving as one of the most reliable clock sources available. Infineon’s SIT9005ACE1D-30DP is a part of this family of oscillators and is designed for a wide range of applications. Additionally, by understanding its working principle, customers will gain a better insight into the best way to use this particular product and other programmable oscillators in the field.

The SIT9005ACE1D-30DP is a programmable oscillator that combines a wide operating frequency range of 30 KHz to 125 MHz with a low jitter performance of less than 150 fs. It has a building block construction with a mix of standard parts along with a custom programmable IC. It is available in a 6-pin SOT-23 package, making it appropriate for space-constrained designs. Furthermore, it is based on the programmable BIST One-Time Programmable (BOTP) technology which prevents any modification on the frequency setting once programmed.

The SIT9005ACE1D-30DP works on a feedback frequency-dependent phase detection principle. It uses voltage-controlled oscillator (VCO) alongside phase/frequency detector (PFD) to generate an oscillating signal with a reference frequency. The VCO is operated under the control of the PFD, whose output is a function of the phase deviation between the reference frequency and the VCO frequency. The output of PFD then controls VCO to achieve synchronization.

In most programmable oscillator applications, the phase/frequency detector receives a reference signal from a crystal oscillator. The phase/frequency detector then converts the reference signals into an input for the voltage-controlled oscillator. This allows for the voltage-controlled oscillator to produce a frequency and phase that is almost exactly the same as the reference frequency. The difference between the reference frequency and the frequency generated by the voltage-controlled oscillator is measured and the PFD scales the voltage output of the VCO accordingly to maintain synchronization. Once the VCO frequency matches the reference frequency, the PFD output becomes 0 and the VCO remains at the same frequency.

The SIT9005ACE1D-30DP is a great choice for applications that require a programmable oscillator with a wide operating frequency range and low jitter performance. It is ideal for high-fidelity applications such as audio systems, network ports, digital audio solutions and system applications that rely on digital clock signals. In addition, its small form factor makes it a great choice for space-constrained designs.

Its programmable BIST technology makes it suitable for applications that require non-volatile frequency settings. Additionally, its feedback frequency-dependent phase detection principle ensures that the oscillator is able to maintain synchronization at all times. So, the SIT9005ACE1D-30DP is an ideal choice for a variety of applications that require a reliable and programmable oscillator.

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