SIT9005ACL1D-28DM

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Programmable Oscillators

Programmable Oscillators are a type of oscillators that has both the oscillation frequency and the waveform of their signal configured by users. SIT9005ACL1D-28DM is one of the members of Programmable Oscillator family. It is a high precision and ultra-low jitter clock source for the communication, broadcasting, and telecommunication applications.

SIT9005ACL1D-28DM features a frequency range of 0.1 to 300MHz, an operation temperature of -20+70 0C, and an excellent amplitude stable during the operation. It offers 5 output waveforms – Square wave, differential LVPECL, single-ended LVDS, HCSL, and LVDS - to meet the different needs by users. Moreover, it has a low additive phase jitter of 0.5ps and a low cycle-to-cycle jitter of 0.1ps, which are suitable for the broadband communication. In addition, both the frequency synthesis and the loop bandwidth are set through a single SPI Interface.

For the working principle, the SIT9005ACL1D-28DM is composed of two functional blocks – an on board voltage controlled oscillator (VCO) and an automatic phase locked loop (PLL). As clock signal output is required, the phase locked loop will be used. The phase locked loop is a closed-loop control system constructed by a reference signal and a VCO. When an RF input is applied to the reference input, the phase detector in the PLL will generate an error signal to control the VCO frequency. By controlling the VCO with different charge pump currents, the VCO frequency can be tuned as desired. Thus, the SIT9005ACL1D-28DM is able to produce a synthesized frequency with low phase jitter.

In summary, the SIT9005ACL1D-28DM is suitable for various communication application such as digital video, 10G Ethernet, broadband communication and so on. It can provide high frequency stability, high accuracy and good stability of phase jitters. The SIT9005ACL1D-28DM is an excellent choice for customers who need a precise and meticulous Programmable Oscillator.

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