LMX2487E Datasheet High Performance Delta-Sigma Low Power Dual PLLatinum Frequency Synthesizers

Manufacturer: National Semiconductor (now Texas Instruments)

LMX2487E high performance delta-sigma low power dual pllatinum frequency synthesizers by National Semiconductor (now Texas Instruments) - Datasheet Preview

Datasheet Details

Part number	LMX2487E
Manufacturer	National Semiconductor (now Texas Instruments)
File Size	729.99 KB
Description	High Performance Delta-Sigma Low Power Dual PLLatinum Frequency Synthesizers
Download	LMX2487E Download (PDF)

General Description

The LMX2487E is a low power, high performance delta-sigma fractional-N PLL with an auxiliary integer-N PLL.

It is fabricated using National Semiconductor’s advanced process.

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

Overview

LMX2487E High Performance Delta-Sigma Low Power Dual PLLatinum Frequency Synthesizer May 2007 LMX2487E 7.5 GHz High Performance Delta-Sigma Low Power Dual PLLatinum™ Frequency Synthesizers with 3.

Key Features

Quadruple Modulus Prescalers for Lower Divide Ratios.
RF PLL: 16/17/20/21 or 32/33/36/37.
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 modulator Features for Improved Lock Times and Programming.
Fastlock / Cycle slip reduction.
Integrated time-out counter.
Single word write to change frequencies with Fastlock Wide Operating Range.
LMX2487E RF PLL:.

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