LMX2491RTWR

Overview

Product Category

The LMX2491RTWR belongs to the category of integrated circuits (ICs) and specifically falls under the family of frequency synthesizers.

Use

This product is primarily used in wireless communication systems, such as cellular networks, satellite communications, and radar systems. It plays a crucial role in generating stable and accurate frequencies required for signal transmission and reception.

Characteristics

• High-frequency accuracy and stability
• Wide frequency range coverage
• Low phase noise
• Fast frequency hopping capability
• Low power consumption

Package

The LMX2491RTWR is available in a small form factor package, typically a 24-pin QFN (Quad Flat No-Lead) package. This package offers excellent thermal performance and ease of integration into various circuit designs.

Essence

The essence of the LMX2491RTWR lies in its ability to provide precise and reliable frequency synthesis, enabling efficient and high-quality wireless communication.

Packaging/Quantity

The LMX2491RTWR is commonly supplied in tape and reel packaging, with a quantity of 250 units per reel.

Specifications

• Frequency Range: 10 MHz to 6 GHz
• Output Power: Adjustable from -4 dBm to +5 dBm
• Phase Noise: -120 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. N/C
9. N/C
10. N/C
11. N/C
12. N/C
13. N/C
14. N/C
15. N/C
16. N/C
17. N/C
18. N/C
19. N/C
20. N/C
21. N/C
22. N/C
23. N/C
24. N/C

Functional Features

• Fractional-N frequency synthesis
• Programmable output frequency and power level
• Fast frequency hopping capability
• Integrated voltage-controlled oscillator (VCO)
• Low power consumption

Advantages and Disadvantages

Advantages

• High-frequency accuracy and stability
• Wide frequency range coverage
• Low phase noise for improved signal quality
• Flexible programmability for various applications
• Compact package size for easy integration

Disadvantages

• Limited output power range compared to dedicated power amplifiers
• Requires external components for complete system implementation
• Relatively higher cost compared to simpler frequency generation solutions

Working Principles

The LMX2491RTWR utilizes a fractional-N frequency synthesis technique to generate precise frequencies. It combines a phase-locked loop (PLL) with a voltage-controlled oscillator (VCO) to achieve accurate frequency control. The PLL compares the desired output frequency with a reference frequency, generating an error signal that drives the VCO to adjust its output frequency. This feedback loop ensures the output frequency matches the desired value with high accuracy.

Detailed Application Field Plans

The LMX2491RTWR finds extensive application in various wireless communication systems, including: - Cellular networks (2G, 3G, 4G, and 5G) - Satellite communications - Radar systems - Wireless local area networks (WLANs) - Internet of Things (IoT) devices - Military and defense communication systems

Detailed and Complete Alternative Models

1. LMX2492RTWR
2. LMX2493RTWR
3. LMX2494RTWR
4. LMX2495RTWR
5. LMX2496RTWR

These alternative models offer similar functionality and performance characteristics, providing options for different frequency ranges or additional features based on specific application requirements.

In conclusion, the LMX2491RTWR is a highly versatile and reliable frequency synthesizer IC used in various wireless communication systems. Its exceptional accuracy, stability, and programmability make it an essential component for achieving efficient and high-quality signal transmission and reception.

Word Count: 529