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Radiofrecuencia y microondas
PLL y sintetizadores de RF

LMX2531

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Sistema sintetizador de frecuencia de alto rendimiento con VCO integrado

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LMX2531

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Detalles del producto

Frequency (max) (MHz) 3132 Frequency (min) (MHz) 553 Normalized PLL phase noise (dBc/Hz) -212 1/f noise (10-kHz offset at 1-GHz carrier) (dBc/Hz) -104 Features Integrated VCO Current consumption (mA) 34 Integrated VCO Yes Operating temperature range (°C) -40 to 85 Rating Catalog Lock time (µs) (typ) (s) 300
Frequency (max) (MHz) 3132 Frequency (min) (MHz) 553 Normalized PLL phase noise (dBc/Hz) -212 1/f noise (10-kHz offset at 1-GHz carrier) (dBc/Hz) -104 Features Integrated VCO Current consumption (mA) 34 Integrated VCO Yes Operating temperature range (°C) -40 to 85 Rating Catalog Lock time (µs) (typ) (s) 300
WQFN (NJG) 36 36 mm² 6 x 6 WQFN (NJH) 36 36 mm² 6 x 6
  • Multiple Frequency Options Available
    • See Device Information Table
    • Frequencies From: 553 MHz to 3132 MHz
  • PLL Features
    • Fractional-N Delta-Sigma Modulator Order
      Programmable up to Fourth Order
    • FastLock/Cycle Slip Reduction with Timeout
      Counter
    • Partially Integrated, Adjustable Loop Filter
    • Very Low Phase Noise and Spurs
  • VCO Features
    • Integrated Tank Inductor
    • Low Phase Noise
  • Other Features
    • 2.8-V to 3.2-V Operation
    • Low Operating Current
    • Low Power-Down Current
    • 1.8-V MICROWIRE Support
    • 36-Pin 6-mm × 6-mm × 0.8-mm WQFN Package
  • Multiple Frequency Options Available
    • See Device Information Table
    • Frequencies From: 553 MHz to 3132 MHz
  • PLL Features
    • Fractional-N Delta-Sigma Modulator Order
      Programmable up to Fourth Order
    • FastLock/Cycle Slip Reduction with Timeout
      Counter
    • Partially Integrated, Adjustable Loop Filter
    • Very Low Phase Noise and Spurs
  • VCO Features
    • Integrated Tank Inductor
    • Low Phase Noise
  • Other Features
    • 2.8-V to 3.2-V Operation
    • Low Operating Current
    • Low Power-Down Current
    • 1.8-V MICROWIRE Support
    • 36-Pin 6-mm × 6-mm × 0.8-mm WQFN Package

The LMX2531 is a low-power, high-performance frequency synthesizer system which includes a fully integrated delta-sigma PLL and VCO with fully integrated tank circuit. The third and fourth poles are also integrated and adjustable. Ultra-low noise and high-precision LDOs are integrated for the PLL and VCO, which yield higher supply-noise immunity and more consistent performance. When combined with a high-quality reference oscillator, the LMX2531 device generates very stable, low-noise local-oscillator signals for up and down conversion in wireless communication devices. The LMX2531 device is a monolithic integrated circuit, fabricated in an advanced BiCMOS process. Several different versions of this product accommodate different frequency bands.

The LMX2531 is a low-power, high-performance frequency synthesizer system which includes a fully integrated delta-sigma PLL and VCO with fully integrated tank circuit. The third and fourth poles are also integrated and adjustable. Ultra-low noise and high-precision LDOs are integrated for the PLL and VCO, which yield higher supply-noise immunity and more consistent performance. When combined with a high-quality reference oscillator, the LMX2531 device generates very stable, low-noise local-oscillator signals for up and down conversion in wireless communication devices. The LMX2531 device is a monolithic integrated circuit, fabricated in an advanced BiCMOS process. Several different versions of this product accommodate different frequency bands.
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Documentación técnica

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Documentación principal Tipo Título Opciones de formato Fecha
* Data sheet LMX2531 High-Performance Frequency Synthesizer System With Integrated VCO datasheet (Rev. S) PDF | HTML 31 dic 2014
Application note AN-1879 Fractional N Frequency Synthesis (Rev. B) 18 nov 2021
Application note AN-1558 Clocking High-Speed A/D Converters (Rev. B) 01 may 2013
Application note AN-1821 CPRI Repeater System (Rev. A) 26 abr 2013
Application note Selecting Amplifiers, ADCs, and Clocks for High-Performance Signal Paths 13 sep 2007
Application note Generating Precision Clocks for Time- Interleaved ADCs 02 ago 2007

Diseño y desarrollo

Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.

Herramienta de programación de software

CODELOADER — CodeLoader Device Register Programming v4.19.0

The CodeLoader 4 software is used to program the LMX PLLs and LMK timing devices through either the USB or line print terminal (LPT) port of a computer. This software also provides information on how to program the device by showing the bits that are actually sent.

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Soporte de software

CLOCKDESIGNTOOL — Clock Design Tool Software

The Clock Design Tool software helps with part selection, loop filter design and simulation of timing device solutions. When you enter desired output frequencies and a reference frequency (optional), the tool provides TI devices to meet the specified requirements, divider values and a recommended (...)

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Soporte de software

TICSPRO-SW — TICS Pro GUI and Live Programming Tool for Clocking Devices

Texas Instruments clocks and synthesizers (TICS) pro software is used to program the evaluation modules (EVMs) for product numbers with these prefixes: CDC, LMK and LMX. These products include phase-locked loops and voltage-controlled oscillators (PLL+VCO), synthesizers and clocking devices.

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Opciones de descarga
Herramienta de diseño

CLOCK-TREE-ARCHITECT — Software de programación de diseño de árbol de reloj

La herramienta de síntesis de tipo árbol de reloj “arquitecto de tipo árbol de reloj” agiliza el proceso de diseño al generar soluciones de árbol de reloj en función de los requisitos del sistema. La herramienta extrae datos de una amplia base de datos de productos de relojes para generar una (...)
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Herramienta de diseño

PLLATINUMSIM-SW — PLL loop filter, phase noise, lock time, and spur simulation tool

PLLATINUMSIM-SW is a simulation tool that allows users to create detailed designs and simulations of our PLLatinum™ integrated circuits, which include the LMX series of phase-locked loops (PLLs) and synthesizers.

Productos y hardware compatibles

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Diseños de referencia

TIDA-00479 — Diseño de referencia de fuentes de reloj óptimas para ADC de GSPS

The ADC12D1600RFRB reference design provides a platform to demonstrate a high speed digitizer application which incorporates clocking, power management, and signal processing. The reference design utilizes the 1.6 GSPS ADC12D1600RF device, onboard FPGA Xilinx Virtex 4, and high performance clock (...)
Design guide: PDF
Esquema: PDF
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
WQFN (NJG) 36 Ultra Librarian
WQFN (NJH) 36 Ultra Librarian
Se aplican los Términos y condiciones estándar de TI para los elementos de evaluación.

Pedidos y calidad

Información incluida:
  • RoHS
  • REACH
  • Marcado del dispositivo
  • Acabado de plomo/material de la bola
  • Clasificación de nivel de sensibilidad a la humedad (MSL)/reflujo máximo
  • Estimaciones de tiempo medio entre fallas (MTBF)/fallas en el tiempo (FIT)
  • Contenido del material
  • Resumen de calificaciones
  • Monitoreo continuo de confiabilidad
Información incluida:
  • Lugar de fabricación
  • Lugar de ensamblaje

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Soporte y capacitación

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