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LMX2471

Part Number	LMX2471
Manufacturer	National Semiconductor
Description	3.6 GHz Delta-Sigma Fractional-N PLL
Published	Apr 25, 2005
Detailed Description	LMX2471 3.6 GHz Delta-Sigma Fractional-N PLL with 1.7 GHz Integer-N PLL November 2003 LMX2471 3.6 GHz Delta-Sigma Frac...
Datasheet	LMX2471 PDF File

Overview

LMX2471 3.
6 GHz Delta-Sigma Fractional-N PLL with 1.
7 GHz Integer-N PLL November 2003 LMX2471 3.
6 GHz Delta-Sigma Fractional-N PLL with 1.
7 GHz Integer-N PLL General Description The LMX2471 is a low power, high performance delta-sigma fractional-N PLL with an auxiliary integer-N PLL.
The device is fabricated using National Semiconductor’s advanced BiCMOS process.
With delta-sigma architecture, fractional spur compensation is achieved with noise shaping capability of the delta-sigma modulator and the inherent low pass filtering of the PLL loop filter.
Fractional spurs at lower frequencies are pushed to higher frequencies outside the loop bandwidth.
Unlike analog compensation, the digital fe...

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