Product details

Integrated VCO Yes Output frequency (Min) (MHz) 20 Output frequency (Max) (MHz) 5500 Normalized PLL phase noise (dBc/Hz) -231 Current consumption (mA) 250 1/f noise (10-kHz offset at 1-GHz carrier) (dBc/Hz) -126
Integrated VCO Yes Output frequency (Min) (MHz) 20 Output frequency (Max) (MHz) 5500 Normalized PLL phase noise (dBc/Hz) -231 Current consumption (mA) 250 1/f noise (10-kHz offset at 1-GHz carrier) (dBc/Hz) -126
VQFN (RHA) 40 36 mm² 6 x 6
  • Output Frequency Range from 20 to 5500 MHz
  • Industry Leading Phase Noise Performance
    • VCO Phase Noise: –144.5 dBc/Hz at 1-MHz Offset for 1.8-GHz Output
    • Normalized PLL Noise Floor: –231 dBc/Hz
    • Normalized PLL Flicker Noise: –126 dBc/Hz
    • 47-fs RMS Jitter (12 kHz to 20 MHz) for 1.8 GHz Output
  • Input Clock Frequency Up to 1400 MHz
  • Phase Detector Frequency Up to 200 MHz,
    and Up to 400 MHz in Integer-N Mode
  • Supports Fractional-N and Integer-N Modes
  • Dual Differential Outputs
  • Innovative Solution to Reduce Spurs
  • Programmable Phase Adjustment
  • Programmable Charge Pump Current
  • Programmable Output Power Level
  • SPI or uWire (4-Wire Serial Interface)
  • Single Power Supply Operation: 3.3 V
  • Output Frequency Range from 20 to 5500 MHz
  • Industry Leading Phase Noise Performance
    • VCO Phase Noise: –144.5 dBc/Hz at 1-MHz Offset for 1.8-GHz Output
    • Normalized PLL Noise Floor: –231 dBc/Hz
    • Normalized PLL Flicker Noise: –126 dBc/Hz
    • 47-fs RMS Jitter (12 kHz to 20 MHz) for 1.8 GHz Output
  • Input Clock Frequency Up to 1400 MHz
  • Phase Detector Frequency Up to 200 MHz,
    and Up to 400 MHz in Integer-N Mode
  • Supports Fractional-N and Integer-N Modes
  • Dual Differential Outputs
  • Innovative Solution to Reduce Spurs
  • Programmable Phase Adjustment
  • Programmable Charge Pump Current
  • Programmable Output Power Level
  • SPI or uWire (4-Wire Serial Interface)
  • Single Power Supply Operation: 3.3 V

The LMX2582 device is a low-noise, wideband RF PLL with integrated VCO that supports a frequency range from 20 MHz to 5.5 GHz. The device supports both fractional-N and integer-N modes, with a 32-bit fractional divider allowing fine frequency selection. Integrated noise of 47 fs for 1.8-GHz output makes it an ideal low-noise source. Combining best-in-class PLL and integrated VCO noise with integrated LDOs, this device removes the need for multiple discrete devices in high performance systems.

The device accepts input frequencies up to 1.4 GHz, which combined with frequency dividers and programmable low noise multiplier allows flexible frequency planning. The additional programmable low-noise multiplier lets users mitigate the impact of integer boundary spurs. In Fractional-N mode, the device can adjust the output phase by a 32-bit resolution. For applications that need fast frequency changes, the device supports a fast calibration option which takes less than 25 µs.

This performance is achieved by using single 3.3-V supply. It supports 2 flexible differential outputs that can be configured as single-ended outputs as well. Users can choose to program one output from the VCO and the second from the channel divider. When not being used, each output can be muted separately.

The LMX2582 device is a low-noise, wideband RF PLL with integrated VCO that supports a frequency range from 20 MHz to 5.5 GHz. The device supports both fractional-N and integer-N modes, with a 32-bit fractional divider allowing fine frequency selection. Integrated noise of 47 fs for 1.8-GHz output makes it an ideal low-noise source. Combining best-in-class PLL and integrated VCO noise with integrated LDOs, this device removes the need for multiple discrete devices in high performance systems.

The device accepts input frequencies up to 1.4 GHz, which combined with frequency dividers and programmable low noise multiplier allows flexible frequency planning. The additional programmable low-noise multiplier lets users mitigate the impact of integer boundary spurs. In Fractional-N mode, the device can adjust the output phase by a 32-bit resolution. For applications that need fast frequency changes, the device supports a fast calibration option which takes less than 25 µs.

This performance is achieved by using single 3.3-V supply. It supports 2 flexible differential outputs that can be configured as single-ended outputs as well. Users can choose to program one output from the VCO and the second from the channel divider. When not being used, each output can be muted separately.

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Technical documentation

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Type Title Date
* Data sheet LMX2582 High Performance, Wideband PLLatinum™ RF Synthesizer With Integrated VCO datasheet (Rev. D) 16 Nov 2017
Application note Clocking Optimization for RF Sampling Analog-to-Digital Converters (Rev. A) 07 Apr 2021
Technical article Don’t let bad reference signals destroy the phase noise in your PLL/synthesizer 10 Jan 2017
Application note RF Sampling ADC with 800MHz of IBW LTE 08 Sep 2016
Technical article What’s the fuss about noise in RF sampling converters? 20 Jul 2016
Technical article Push your receiver bandwidths past 1-GHz in high-end applications 26 May 2016
Technical article How to estimate the phase noise of a PLL with basic datasheet specifications 02 Mar 2016
User guide LMX2582EVM User's Guide 18 Dec 2015

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

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ADC12DJ2700EVM — ADC12DJ2700 12-bit, dual 2.7-GSPS or single 5.4-GSPS, RF-sampling ADC evaluation module

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ADC12DJ3200EVM — ADC12DJ3200 12-bit, dual 3.2-GSPS or single 6.4-GSPS, RF-sampling ADC evaluation module

The ADC12DJ3200 evaluation module (EVM) allows for the evaluation of device ADC12DJ3200. The ADC12DJ3200 is a low-power, 12-bit, dual 3.2-GSPS/single 6.4-GSPS, RF-sampling analog-to-digital converter (ADC) with a buffered analog input, integrated digital down converter with programmable NCO and (...)

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Evaluation board

ADC12DJ3200EVMCVAL — ADC12DJ3200QML-SP 12-bit, dual 3.2-GSPS or single 6.4-GSPS, RF-sampling ADC space evaluation module

The ADC12DJ3200EVMCVAL is an evaluation module (EVM) that evaluates the ADC12DJ3200QML-SP device. ADC12DJ3200QML-SP is a space-grade, low-power, 12-bit, dual 3.2-GSPS/single 6.4-GSPS, RF-sampling analog-to-digital converter (ADC) with a buffered analog input, integrated digital down converter, (...)

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Evaluation board

ADC12DJ5200RFEVM — ADC12DJ5200RF RF-sampling 12-bit dual 5.2-GSPS or single 10.4-GSPS ADC evaluation module

The ADC12DJ5200RF evaluation module (EVM) allows for the evaluation of device ADC12DJ5200RF. The ADC12DJ5200RF is a low-power, 12-bit, dual 5.2-GSPS/single 10.4-GSPS, RF-sampling analog-to-digital converter (ADC) with a buffered analog input, integrated digital down converter with programmable NCO (...)

Evaluation board

ADC12DL3200EVM — ADC12DL3200 12-bit, dual 3.2-GSPS or single 6.4-GSPS, RF-sampling ADC evaluation module

The ADC12DL3200 evaluation module (EVM) is used to evaluate the ADC12DL3200, which is a 12-bit, dual 3.2-GSPS or single 6.4-GSPS, RF-sampling analog-to-digital converter (ADC) with an LVDS interface. The EVM has single-ended AC-coupled analog inputs, onboard ADC clock generation, and (...)

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Evaluation board

ADC32RF42EVM — ADC32RF42 Dual-Channel, 14-Bit, 1.5GSPS, RF-Sampling ADC Evaluation Module

The ADC32RF42 evaluation module (EVM) demonstrates the performance of a dual 1.5-GSPS 14-bit analog-to-digital converter (ADC) with the JESD204B interface. The EVM includes the ADC32RF42 device, and JESD204B clocking is provided by the LMK04828 and TI voltage regulators to provide the necessary (...)

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Evaluation board

ADC32RF44EVM — ADC32RF44 Dual-Channel, 14-Bit, 2.6GSPS, RF-Sampling ADC Evaluation Module

The ADC32RF44 evaluation module (EVM) demonstrates the performance of a dual 2.5-GSPS 14-bit analog-to-digital converter (ADC) with the JESD204B interface. The EVM includes the ADC32RF44 device, and JESD204B clocking is provided by the LMK04828 and TI voltage regulators to provide the necessary (...)

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Evaluation board

ADC32RF45EVM — ADC32RF45 evaluation module for dual-channel, 14-bit, 3-GSPS, RF-sampling ADC

The ADC32RF45 evaluation module (EVM) demonstrates the performance of a dual 3-GSPS 14-bit analog-to-digital conver (ADC) with the JESD204B interface. The EVM includes the ADC32RF45 device, and JESD204B clocking is provided by the LMK04828 and TI voltage regulators to provide the necessary (...)

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Evaluation board

ADC32RF82EVM — ADC32RF82 dual-channel, 14-bit, 2.45-GSPS, RF-sampling telecom receiver evaluation module

The ADC32RF82 evaluation module (EVM) demonstrates the performance of a dual, 2.45-GSPS, 14-bit analog-to-digital converter (ADC) with the JESD204B interface. The EVM includes the ADC32RF82 device, and JESD204B clocking is provided by the LMK04828 and TI voltage regulators to provide the (...)

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Evaluation board

LMX2582EVM — LMX2582EVM High Performance, Wideband Frequency PLLatinum RF Synthesizer With Integrated VCO

This Evaluation Module is for the LMX2582, which outputs very high frequency signals with industry leading phase noise. The integrated VCO allows minimal discrete external components to design. The PCB is optimized for performance as well as designed for easy customization of the loop filter. An (...)

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Evaluation board

TSW40RF80EVM — 2T2R RF-Sampling Transceiver w/ Dual 14-Bit 3GSPS ADC/9GSPS DAC Clocking Solution Evaluation Module

The TSW40RF80 evaluation module (EVM) is a two-transmit two-receive (2T2R) RF-sampling transceiver reference design. The module contains the DAC38RF80 dual-channel RF-sampling digital-to-analog converter (DAC) and the ADC32RF45 dual-channel RF-sampling analog-to-digital converter (ADC).

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Evaluation board

TSW40RF82EVM — 2T2R RF-Sampling Transceiver w/ Dual 14-Bit 3GSPS ADC/9GSPS DAC Clocking Solution Evaluation Module

The TSW40RF82 evaluation module (EVM) is a two-transmit two-receive (2T2R) RF-sampling transceiver reference design. The module contains the DAC38RF82 dual-channel RF-sampling digital-to-analog converter (DAC) and the ADC32RF45 dual-channel RF-sampling analog-to-digital converter (ADC).

The (...)

In stock
Limit: 3
Application software & framework

PLLATINUMSIM-SW — Texas Instruments PLLatinum Simulator Tool

The PLLATINUMSIM-SW simulator tool lets you create detailed designs and simulations of our PLLATINUM™ integrated circuits which include the LMX series of PLLs and synthesizers.
Application software & framework

TICSPRO-SW — Texas Instruments Clocks and Synthesizers (TICS) Pro Software

The TICS Pro software is used to program the evaluation modules (EVMs) for device numbers with these prefixes: CDC, LMK and LMX. These devices include PLLs and voltage-controlled oscillators (PLL+VCO), synthesizers and clocking devices.
Simulation model

LMX2582 IBIS Model (Rev. A)

SNAM199A.ZIP (44 KB) - IBIS Model
Design tool

CLOCK-TREE-ARCHITECT — Clock tree architect programming software

Clock tree architect is a clock tree synthesis tool that streamlines your design process by generating clock tree solutions based on your system requirements. The tool pulls data from an extensive database of clocking products to generate a system-level multi-chip clocking solution.
Reference designs

TIDA-01435 — High-Bandwidth Zero-IF Reference Design for Microwave Backhaul

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Reference designs

TIDA-01442 — Direct RF-Sampling Radar Receiver for L-, S-, C-, and X-Band Using ADC12DJ3200 Reference Design

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Reference designs

TIDA-01247 — Efficient, LDO-Less, Power-Supply Network Reference Design for RF-Sampling ADC

This reference design demonstrates a simplified and efficient network to power an ADC32RFxx. All three power domains of the analog-to-digital converter (ADC) are supplied using a switching regulator to enable the use of a power-supply network without a low-dropout (LDO) linear regulator. (...)
Reference designs

TIDA-01161 — 1-GHz Signal Bandwidth RF Sampling Receiver Reference Design

The RF sampling architecture offers an alternative to the traditional super-heterodyne architecture. An RF sampling analog-to-digital converter (ADC) operates at a high sampling rate and converts signals directly from radio frequencies (RF) to digital. Because of the high sampling rate, the RF (...)
Reference designs

TIDA-01163 — Multi-band RF Sampling Receiver Reference Design

The RF sampling receiver captures signals directly in the radio frequency (RF) band. In a multi-band application the desired signals are not very wide band but they are spaced far apart within the spectrum. The reference design captures signals in different RF bands and digitally down-converts them (...)
Reference designs

TIDA-01016 — Clocking Reference Design for RF Sampling ADCs in Signal Analyzers and Wireless Testers

TIDA-01016 is a clocking solution for high dynamic range high speed ADC. RF input signals are directly captured using the RF sampling approach by high speed ADC. The ADC32RF45 is a dual- channel, 14-bit, 3-GSPS RF sampling ADC. The 3-dB input bandwidth is 3.2 GHz, and it captures signals up to 4 (...)
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