LMX2486 Datasheet (National Semiconductor) - High Performance Delta-Sigma Low Power Dual PLLatinum Frequency Synthesizers

LMX2486, High Performance Delta-Sigma Low Power Dual PLLatinum Frequency Synthesizers

The LMX2486 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

LMX2486 Features

* Quadruple Modulus Prescalers for Lower Divide Ratios n RF PLL: 16/17/20/21 or 32/33/36/37 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 Pro