LMX2531LQX1146E/NOPB

Product Overview

Category: Integrated Circuit (IC)

Use: Frequency Synthesizer

Characteristics: - High-performance frequency synthesizer - Low power consumption - Wide frequency range - Precise frequency synthesis - Compact size

Package: QFN (Quad Flat No-Lead)

Essence: The LMX2531LQX1146E/NOPB is a highly efficient frequency synthesizer integrated circuit used for precise frequency synthesis in various applications.

Packaging/Quantity: Available in reels of 2500 units per reel.

Specifications

The LMX2531LQX1146E/NOPB offers the following specifications:

• Frequency Range: 10 MHz to 3.5 GHz
• Output Power: Adjustable from -4 dBm to +7 dBm
• Phase Noise: -110 dBc/Hz at 1 MHz offset
• Supply Voltage: 2.7 V to 3.3 V
• Current Consumption: 20 mA (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The LMX2531LQX1146E/NOPB has the following pin configuration:

1. VCC
2. GND
3. RFout
4. CE
5. CLKin
6. DATAin
7. LE
8. CLKout
9. DATAout
10. LD

Functional Features

• Fractional-N PLL architecture for precise frequency synthesis
• On-chip voltage-controlled oscillator (VCO) with wide tuning range
• Programmable output power level
• Serial interface for easy control and configuration
• Lock detect output for monitoring PLL lock status

Advantages and Disadvantages

Advantages: - High-performance frequency synthesis with low phase noise - Wide frequency range allows for versatile applications - Compact size enables integration into space-constrained designs - Low power consumption for energy-efficient operation

Disadvantages: - Limited output power range compared to some other synthesizers - Requires external components for proper operation

Working Principles

The LMX2531LQX1146E/NOPB operates based on a fractional-N PLL architecture. It utilizes a voltage-controlled oscillator (VCO) to generate the desired frequency, which is then divided and compared with a reference frequency. The phase difference between the divided signal and the reference frequency is used to adjust the VCO control voltage, achieving precise frequency synthesis.

Detailed Application Field Plans

The LMX2531LQX1146E/NOPB finds applications in various fields, including:

1. Wireless Communication Systems
2. Satellite Communication
3. Radar Systems
4. Test and Measurement Equipment
5. Frequency Synthesis in RF Transceivers

Detailed and Complete Alternative Models

1. LMX2595: Offers higher frequency range up to 9 GHz.
2. LMX2642: Provides integrated frequency synthesizer and VCO in a single chip.
3. LMX2582: Features dual-channel frequency synthesis capability.

These alternative models offer similar functionality and can be considered based on specific application requirements.

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