IDT23S09E-1HPGI8

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The IDT23S09E-1HPGI8 is a low-power, fractional-N frequency synthesis integrated circuit (IC) used to generate very low-noise clock and timing signals. The device is ideal for a wide range of applications including high-speed communication systems and embedded systems. It includes a built-in phase-locked loop (PLL) with fractional-N frequency synthesis, a synthesizer that has the flexibility to generate frequency bands in sub-1.0GHz and higher frequency range. It also enables very low-noise and low-jitter signals in a very small package.

One of the primary applications of the IDT23S09E-1HPGI8 is clock/timing generation. The integrated PLL can be used for both frequency and time generation. The IC can generate frequencies from 0.5 to 6.5GHz with the help of a wide variety of reference clock frequency sources. It is also suitable for applications where multiple low-noise clock signals need to generated including DSP systems and telecommunications applications.

The working principle of the IDT23S09E-1HPGI8 is relatively simple. At the core of the IC is a PLL based frequency synthesis architecture. This architecture has a phase-frequency detector (PFD) and a voltage-controlled oscillator (VCO). The PFD compares the phase difference between the reference clock frequency and the output clock frequency, and generates a control voltage that is applied to the VCO. The VCOs responding to this voltage will alter its output frequency, and the PFD will again compare the output frequency with the reference clock. This comparison/feedback loop helps to maintain the frequency of the output clock at the desired level.

The IDT23S09E-1HPGI8 also includes an on-chip digital calibration loop that helps to reduce jitter to a minimum level. This digital calibration loop works by sending digital codes to the PLL for automatic adjustment to the desired frequency. The adjustment is done in a very simple way with just a few digital codes. The digital calibration loop also allows the output frequency to be set with high precision and accuracy.

The IDT23S09E-1HPGI8 is an excellent choice for low-noise and low-jitter signal generation. It is robust, reliable and easy to use. Its wide range of frequency synthesis capabilities, low-noise and low-jitter operation and digital calibration loop make it an ideal solution for many clock/timing applications.

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