LMX2541 Datasheet High Performance Frequency Synthesizer System

Manufacturer: National Semiconductor Corporation

LMX2541 high performance frequency synthesizer system by National Semiconductor Corporation - Datasheet Preview

Datasheet Details

Part number	LMX2541
Manufacturer	National Semiconductor Corporation
File Size	0.97 MB
Description	High Performance Frequency Synthesizer System
Download	LMX2541 Download (PDF)

General Description

The LMX2541 is an ultra low noise frequency synthesizer which integrates a high performance delta-sigma fractional N PLL, a VCO with fully integrated tank circuit, and an optional frequency divider.

The PLL offers an unprecedented normalized noise floor of -225 dBc/Hz and can be operated with up to 104 MHz of phase-detector rate (comparison frequency) in both integer and fractional modes.

The PLL can also be configured to work with an external VCO.

Overview

LMX2541 Ultra-Low Noise PLLatinum Frequency Synthesizer with Integrated VCO www.DataSheet4U.

Key Features

Very Low RMS Noise and Spurs.
-225 dBc/Hz Normalized PLL Phase Noise.
Integrated RMS Noise (100 Hz - 20 MHz).
2 mrad (100 Hz - 20 MHz) at 2.1 GHz.
3.5 mrad (100 Hz - 20 MHz) at 3.5 GHz Ultra Low-Noise Integrated VCO External VCO Option (Internal VCO Bypassed) VCO Frequency Divider 1 to 63 (all values) Programmable Output Power Up to 104 MHz Phase Detector Frequency Integrated Low-Noise LDOs Programmable Charge Pump Output Partially Integrated Loop Filter Digital.

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