LMX2491RTWT

Overview

Product Category

LMX2491RTWT belongs to the category of integrated circuits (ICs).

Use

This product is primarily used for frequency synthesis and clock generation in various electronic systems.

Characteristics

• High-performance frequency synthesizer
• Wide frequency range
• Low phase noise
• Low power consumption
• Compact package size

Package

LMX2491RTWT is available in a small form-factor package, typically a 24-pin QFN (Quad Flat No-leads) package.

Essence

The essence of LMX2491RTWT lies in its ability to generate stable and accurate clock signals for precise timing in electronic devices.

Packaging/Quantity

This product is typically packaged in reels or trays, with a quantity of 250 units per reel/tray.

Specifications

• Frequency Range: 10 MHz to 6 GHz
• Output Power: Adjustable from -4 dBm to +5 dBm
• Phase Noise: -150 dBc/Hz at 1 MHz offset
• Supply Voltage: 3.3 V
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

1. VCC
2. GND
3. RFOUT
4. VCOIN
5. VCOOUT
6. XTALN
7. XTALP
8. REFOUT
9. REFIN
10. LD
11. CE
12. LE
13. CLKIN
14. CLKOUT
15. RFSW
16. DVDD
17. DGND
18. AGND
19. AVDD
20. N/C
21. N/C
22. N/C
23. N/C
24. N/C

Functional Features

• Fractional-N PLL architecture
• Programmable output frequency
• Fast frequency hopping capability
• Low spurious and harmonic content
• Integrated RF power detector
• Serial interface for control and configuration

Advantages and Disadvantages

Advantages

• Wide frequency range allows for versatile applications
• Low phase noise ensures high signal quality
• Compact package size enables space-saving designs
• Low power consumption for energy-efficient operation

Disadvantages

• Limited output power range may not be suitable for high-power applications
• Requires external components for proper operation
• Complex programming and configuration may require expertise

Working Principles

LMX2491RTWT utilizes a fractional-N PLL architecture to generate precise clock signals. It incorporates a voltage-controlled oscillator (VCO) and a phase frequency detector (PFD) to compare the output frequency with a reference input. The feedback loop adjusts the VCO control voltage to minimize the phase difference, resulting in accurate frequency synthesis.

Detailed Application Field Plans

LMX2491RTWT finds applications in various fields, including:

1. Wireless Communication Systems: Provides stable clock signals for wireless transceivers, base stations, and satellite communication systems.
2. Test and Measurement Equipment: Enables precise timing and synchronization in oscilloscopes, spectrum analyzers, and signal generators.
3. Radar Systems: Supports accurate frequency generation in radar transmitters and receivers for target detection and tracking.
4. Aerospace and Defense: Facilitates reliable clocking in avionics systems, navigation equipment, and military communication devices.
5. Industrial Automation: Ensures synchronized operation of PLCs (Programmable Logic Controllers), motion controllers, and robotics.

Detailed and Complete Alternative Models

1. LMX2492RTWT
2. LMX2493RTWT
3. LMX2494RTWT
4. LMX2495RTWT
5. LMX2496RTWT

These alternative models offer similar functionality and performance, providing options for different design requirements.

In conclusion, LMX2491RTWT is a high-performance frequency synthesizer IC that offers precise clock generation capabilities. With its wide frequency range, low phase noise, and compact package size, it finds applications in various fields such as wireless communication, test and measurement, radar systems, aerospace, defense, and industrial automation.

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