SI52131-A11AGM

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The SI52131-A11AGM is a clock generator system-in-package (SiP) which integrates a programmable integer-N/fractional-N PLL, low-noise regulated logarithmic voltage-controlled oscillator (logarithmic VCO) plus an external output buffer into a small 2.5mm × 2.5mm package. It is designed for use in low-power, small form-factor applications such as automotive infotainment, wearable and portable applications. The SI52131-A11AGM is an Application Specific clock generator and is ideally suited for automotive and industrial applications.

As a clock generator, the SI52131-A11AGM integrates a programmable integer-N/fractional-N PLL, a low-noise regulated logarithmic VCO, a low-jitter fractional-N synthesizer of both high- and low-frequency clocks, and a 7-mV PP output divider as well as an external output buffer in a 2.5mm X 2.5mm package. The device is manufactured in a low-power, small form factor and binned across temperature and voltage ranges to ensure optimal performance. The SI52131-A11AGM has best-in-class output jitter performance and is designed to generate the most dependable frequencies in a wide range of automotive, industrial and consumer applications with high frequency accuracy and stability.

The SI52131-A11AGM works by using a combination of a PLL and a VCO. The main advantages of using this combination of a PLL and a VCO are to provide very high frequency accuracy, very low jitter, and extreme power efficiency. The PLL works to synchronize incoming signals by taking them as an input and then amplifying, filtering, buffering, and transmitting them out of the device. The output of the PLL is then fed into the VCO to generate the output frequency. The VCO takes the PLL output and further amplifies, filters, and modulates it before it is output from the device.

The core features of the SI52131-A11AGM are its programmable integer-N/fractional-N PLL and its low-noise regulated logarithmic VCO. The integer-N technology enables frequency synthesis with user-programmable integer values while the fractional-N technology enables Ultra-Fine Tuning of the output frequency. Coupled with the low-noise regulated logarithmic VCO, the SI52131-A11AGM offers frequency stability and extreme power efficiency. The programmable fractional-N synthesizer allows the user to generate both high- and low-frequency clocks with low jitter. The 7-mV PP output divider ensures a low power solution in space-constrained applications. Lastly, the external output buffer allows the user to configure the device to accommodate multiple output load configurations.

The SI52131-A11AGM is an excellent clock generator solution for a wide range of low-power, small form-factor applications such as automotive infotainment, wearable and portable applications. Its features make it an ideal choice for applications requiring very high frequency accuracy, very low jitter, and extreme power efficiency. The device is designed to generate the most dependable frequencies in a wide array of applications and is easily programmable via an I2C interface. With its highly-integrated and top-grade design, the SI52131-A11AGM is one of the most advanced clock generators on the market, making it a great choice for cost-sensitive, low-power, and small-form-factor applications.

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