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LMX2433

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3.6-GHz/1.7-GHz PLLatinum dual high frequency synthesizer for RF personal communications

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Data sheet

LMX2433

ACTIVE
Data sheet Order now

Product details

Integrated VCO No Output frequency (min) (MHz) 500 Output frequency (max) (MHz) 3600 Normalized PLL phase noise (dBc/Hz) -218 Current consumption (mA) 3.2 Features Fastlock, Programmable charge-pump current, Synchronous and asynchronous power down 1/f noise (10-kHz offset at 1-GHz carrier) (dBc/Hz) -100 Rating Catalog Operating temperature range (°C) -40 to 85 Lock time (µs) (typ) Loop BW dependent
Integrated VCO No Output frequency (min) (MHz) 500 Output frequency (max) (MHz) 3600 Normalized PLL phase noise (dBc/Hz) -218 Current consumption (mA) 3.2 Features Fastlock, Programmable charge-pump current, Synchronous and asynchronous power down 1/f noise (10-kHz offset at 1-GHz carrier) (dBc/Hz) -100 Rating Catalog Operating temperature range (°C) -40 to 85 Lock time (µs) (typ) Loop BW dependent
ULGA (NPE) 20 12.25 mm² 3.5 x 3.5
  • Low Current Consumption
    • LMX2430 (RF/IF): 2.8 mA/ 1.4 mA
    • LMX2433 (RF/IF): 3.2 mA/ 2 mA
    • LMX2434 (RF/IF): 4.6 mA/ 2.4 mA
  • 2.25-V to 2.75-V Operation
  • Synchronous/Asynchronous Power Down
  • Multiple PLL Options:
    • LMX2430 (RF/IF): 3 GHz /0.8 GHz
    • LMX2433 (RF/IF): 3.6 GHz /1.7 GHz
    • LMX2434 (RF/IF): 5 GHz /2.5 GHz
  • Programmable Charge-Pump Current Levels
    • RF and IF: 1 or 4 mA
  • Fastlock With Integrated Time-Out Counters
  • Digital Filtered Lock-Detect Output
  • Analog Lock Detect (Push-Pull / Open-Drain)
  • 1.8-V MICROWIRE Logic Interface
  • Low Current Consumption
    • LMX2430 (RF/IF): 2.8 mA/ 1.4 mA
    • LMX2433 (RF/IF): 3.2 mA/ 2 mA
    • LMX2434 (RF/IF): 4.6 mA/ 2.4 mA
  • 2.25-V to 2.75-V Operation
  • Synchronous/Asynchronous Power Down
  • Multiple PLL Options:
    • LMX2430 (RF/IF): 3 GHz /0.8 GHz
    • LMX2433 (RF/IF): 3.6 GHz /1.7 GHz
    • LMX2434 (RF/IF): 5 GHz /2.5 GHz
  • Programmable Charge-Pump Current Levels
    • RF and IF: 1 or 4 mA
  • Fastlock With Integrated Time-Out Counters
  • Digital Filtered Lock-Detect Output
  • Analog Lock Detect (Push-Pull / Open-Drain)
  • 1.8-V MICROWIRE Logic Interface

Using a proprietary digital-phase, locked-loop technique, the LMX243x devices generate very stable, low-noise control signals for RF and IF voltage controlled oscillators. Both the RF and IF synthesizers include a two-level programmable charge pump. Both the RF and IF PLLs have dedicated fastlock circuitry with integrated time-out counters which require only a single word write to power up or change frequencies.

The LMX243x devices are high-performance frequency synthesizers with integrated dual-modulus prescalers. A 32/33 or a 16/17 prescale ratio can be selected for the 5-GHz LMX2434 RF synthesizer. An 8/9 or a 16/17 prescale ratio can be selected for both the LMX2430 and LMX2433 RF synthesizers. The IF circuitry contains an 8/9 or a 16/17 prescaler.

Serial data is transferred to the devices through a three-wire interface (DATA, LE, CLK). A low voltage logic interface allows direct connection to 1.8-V devices. Supply voltages from 2.25 V to 2.75 V are supported.

Using a proprietary digital-phase, locked-loop technique, the LMX243x devices generate very stable, low-noise control signals for RF and IF voltage controlled oscillators. Both the RF and IF synthesizers include a two-level programmable charge pump. Both the RF and IF PLLs have dedicated fastlock circuitry with integrated time-out counters which require only a single word write to power up or change frequencies.

The LMX243x devices are high-performance frequency synthesizers with integrated dual-modulus prescalers. A 32/33 or a 16/17 prescale ratio can be selected for the 5-GHz LMX2434 RF synthesizer. An 8/9 or a 16/17 prescale ratio can be selected for both the LMX2430 and LMX2433 RF synthesizers. The IF circuitry contains an 8/9 or a 16/17 prescaler.

Serial data is transferred to the devices through a three-wire interface (DATA, LE, CLK). A low voltage logic interface allows direct connection to 1.8-V devices. Supply voltages from 2.25 V to 2.75 V are supported.
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Technical documentation

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Type Title Date
* Data sheet LMX243x PLLatinum Dual High-Frequency Synthesizer for RF Personal Communications datasheet (Rev. D) PDF | HTML 13 Jan 2016
EVM User's guide LMX2430/LMX2433/LMX2434 Evaluation Board User’s Guide (Rev. A) 26 Nov 2013
More literature Optimizing LMX243x Input Sens Using Simple Matching Techniques (Rev. A) 26 Apr 2013

Design & development

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Evaluation board

LMX2433EVAL — 3.6 GHz 1.7 GHz PLLatinum Dual High Frequency Synthesizer for RF Personal Communications

The LMX2433SLE Evaluation Board simplifies evaluation of the LMX2433 3.6 GHz/1.7 GHz PLLatinum™ Dual High Frequency synthesizer. The board enables all performance measurements with no additional support circuitry.

The evaluation board consists of a LMX2433SLE device, RF and IF VCO modules, and RF (...)

User guide: PDF
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Application software & framework

CLOCKDESIGNTOOL — Clock Design Tool - Loop Filter & Device Configuration + Simulation

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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Application software & framework

PLLATINUMSIM-SW — Texas Instruments PLLatinum Simulator 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.
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IDE, configuration, compiler or debugger

CODELOADER — CodeLoader Software for device register programming

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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