LMX2485_NationalSemiconductor.pdf
Datasheet Details
Part number:
LMX2485E, LMX2485
Manufacturer:
National Semiconductor
File Size:
890.62 KB
Description:
High performance delta-sigma low power dual pllatinum frequency synthesizers.
Note:
This datasheet PDF includes multiple part numbers: LMX2485E, LMX2485.
Please refer to the document for exact specifications by model.
LMX2485E, LMX2485, High Performance Delta-Sigma Low Power Dual PLLatinum Frequency Synthesizers
The LMX2485 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 process.
With delta-sigma architecture, fractional spurs at lower offset frequencies are pushed to higher frequencies outside th
LMX2485E Features
* Quadruple Modulus Prescalers for Lower Divide Ratios n RF PLL: 8/9/12/13 or 16/17/20/21 n IF PLL: 8/9 or 16/17 Advanced Delta Sigma Fractional Compensation n 12 bit or 22 bit selectable fractional modulus n Up to 4th order programmable delta-sigma modulator Features for Improved Lock Times and Progr
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