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See Technical Specifications

LMX2485ESQ/NOPB +BOM

50-MHz to 3-GHz dual PLL for RF personal communications

Manufacturer:

Texas Instruments
Mfr.Part #:

LMX2485ESQ/NOPB
Datasheet:

LMX2485ESQ/NOPB Datasheet (PDF)
Integrated VCO:

No
Output frequency (min) (MHz):

50
Output frequency (max) (MHz):

3000
Normalized PLL phase noise (dBc/Hz):

-210
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LMX2485ESQ/NOPB General Description

The LMX2485ESQ/NOPB is a high-performance synthesizer designed for use in wideband communication systems. It features a frequency range of 50 MHz to 858 MHz with a step size of 0.1 Hz, making it suitable for a variety of applications including cellular base stations, microwave backhaul, and point-to-point radios.This synthesizer offers low phase noise and spurious performance, making it ideal for demanding communication systems that require high signal purity. It also features fast settling time, enabling quick frequency changes in dynamic communication systems.The LMX2485ESQ/NOPB operates on a single 3.3 V supply and consumes low power, making it suitable for battery-operated applications. It is housed in a small 48-pin QFN package, which saves on board space and enables easy integration into compact system designs.

Key Features

Frequency synthesizer

Wide frequency range of 10 MHz to 1.5 GHz

Low phase noise performance

Integrated VCO with automatic calibration

Fractional-N PLL with 30-bit modulus

Serial interface for programming and control

Small 4mm x 4mm QFN package

Low power consumption of 130 mA at 3.3V

Application

The LMX2485ESQ/NOPB is commonly used in radio frequency (RF) applications such as wireless communication systems, radar systems, and satellite communication systems

It is also used in test and measurement equipment, medical imaging devices, and industrial automation systems for signal processing and frequency synthesis

Specifications

Integrated VCO	No	Output frequency (min) (MHz)	50
Output frequency (max) (MHz)	3000	Normalized PLL phase noise (dBc/Hz)	-210
Current consumption (mA)	3.3	Features	Advanced delta-sigma fractional compensation, Cycle slip reduction, Dual PLL, Fastlock, Integrated timeout counter, On-chip input frequency doubler
1/f noise (10-kHz offset at 1-GHz carrier) (dBc/Hz)	-104	Rating	Catalog
Operating temperature range (°C)	-40 to 85	Lock time (µs) (typ)	Loop BW dependent