LMX2485E, LMX2485 - High Performance Delta-Sigma Low Power Dual PLLatinum Frequency Synthesizers

National Semiconductor

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
Datasheet	LMX2485_NationalSemiconductor.pdf
Note	This datasheet PDF includes multiple part numbers: LMX2485E, LMX2485. Please refer to the document for exact specifications by model.

The LMX2485 is a low power, high performance delta-sigma fractional-N PLL with an auxiliary integer-N PLL.

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 Programming n Fastlock / Cycle slip reduction n Integrated time-out counter n Single word write to change frequencies with Fastlock Wide Operating Range n LMX2485 RF PLL: 500 MHz to 3.0 GHz n LMX2485E RF P.

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Other Datasheets by National Semiconductor

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Published: Feb 5, 2007 |