LMX2541SQX3030E/NOPB

Product Overview

Category: Integrated Circuit (IC)

Use: The LMX2541SQX3030E/NOPB is a high-performance frequency synthesizer designed for use in various wireless communication systems. It provides accurate and stable frequency synthesis, making it suitable for applications such as cellular base stations, satellite communications, and radar systems.

Characteristics: - High-frequency accuracy and stability - Wide frequency range coverage - Low phase noise - Fast frequency switching capability

Package: The LMX2541SQX3030E/NOPB is available in a small outline 20-pin quad flat no-lead (QFN) package, which offers excellent thermal performance and ease of integration into circuit boards.

Essence: The essence of the LMX2541SQX3030E/NOPB lies in its ability to generate precise and stable frequencies required for reliable wireless communication.

Packaging/Quantity: The LMX2541SQX3030E/NOPB is typically sold in reels containing 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

The LMX2541SQX3030E/NOPB features a 20-pin QFN package with the following pin configuration:

1. VCO Input
2. RF Output
3. GND
4. Charge Pump Output
5. Loop Filter Capacitor
6. Loop Filter Resistor
7. Reference Clock Input
8. GND
9. Digital Ground
10. Serial Data Input
11. Serial Clock Input
12. Lock Detect Output
13. GND
14. VCO Output
15. Charge Pump Voltage Control
16. Loop Filter Resistor
17. Loop Filter Capacitor
18. Power Supply (VCC)
19. Power Supply (VCC)
20. GND

Functional Features

• Frequency Synthesis: The LMX2541SQX3030E/NOPB utilizes a phase-locked loop (PLL) architecture to generate accurate and stable frequencies.
• Fast Frequency Switching: It offers fast frequency switching capability, allowing seamless transitions between different frequencies.
• Low Phase Noise: The IC incorporates advanced noise reduction techniques, resulting in low phase noise performance for improved signal quality.
• Programmable Output Power: The output power can be adjusted to meet the specific requirements of the application.

Advantages and Disadvantages

Advantages: - High-frequency accuracy and stability - Wide frequency range coverage - Low phase noise - Fast frequency switching capability - Programmable output power

Disadvantages: - Limited availability in smaller package options - Higher cost compared to some alternative models

Working Principles

The LMX2541SQX3030E/NOPB operates based on the principle of frequency synthesis using a PLL. It takes an input reference clock and generates an output frequency that is a multiple or fraction of the reference frequency. The PLL locks onto the desired frequency by adjusting the phase and frequency of the output signal. This ensures precise and stable frequency generation.

Detailed Application Field Plans

The LMX2541SQX3030E/NOPB finds applications in various wireless communication systems, including: - Cellular base stations - Satellite communications - Radar systems - Wireless local area networks (WLANs) - Internet of Things (IoT) devices

Its high-frequency accuracy, stability, and fast frequency switching capability make it suitable for demanding applications that require reliable and efficient wireless communication.

Detailed and Complete Alternative Models

• LMX2541SQX3030E/NOPB: The model described in this entry.
• LMX2541SQX3030E: Similar to the above model but without the "NOPB" suffix, indicating a different packaging option.
• LMX2541SQX3030: A lower-cost variant with slightly reduced performance specifications.
• LMX2541SQX2020E/NOPB: A similar IC with a narrower frequency range of 10 MHz to 2 GHz.

These alternative models offer varying trade-offs in terms of cost, performance, and frequency range, allowing users to select the most suitable option for their specific application requirements.

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