LMX2485Q-Q1 Datasheet (Texas Instruments) - High Performance Delta-Sigma Low Power Dual PLLatinum Frequency Synthesizers

LMX2485Q-Q1, High Performance Delta-Sigma Low Power Dual PLLatinum Frequency Synthesizers

The LMX2485Q-Q1 is a low power, high performance delta-sigma fractional-N PLL with an auxiliary integerN PLL.

The device is fabricated using TI’s advanced process.

With delta-sigma architecture, fractional spurs at lower offset frequencies are pushed to higher frequencies outside the loop bandwidth.

LMX2485Q-Q1 Features

* 1 Quadruple Modulus Prescaler for Lower Divides

* RF PLL: 8/9/12/13 or 16/17/20/21

* IF PLL: 8/9 or 16/17

* Advanced Delta Sigma Fractional Compensation

* 12-Bit or 22-Bit Selectable Fractional Modulus

* Up to 4th Order Programmable Delta-Sigma Modula