LMX2531LQX1910E/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-leads)

Essence: The LMX2531LQX1910E/NOPB is a highly efficient frequency synthesizer integrated circuit. It is designed to generate precise frequencies for various applications while consuming minimal power.

Packaging/Quantity: The LMX2531LQX1910E/NOPB is available in a QFN package and is typically sold in reels of 250 units.

Specifications

• Frequency Range: 10 MHz - 3 GHz
• Output Power: Adjustable from -4 dBm to +7 dBm
• Supply Voltage: 2.7 V - 3.6 V
• Current Consumption: 15 mA (typical)
• Phase Noise: -100 dBc/Hz @ 1 MHz offset
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The LMX2531LQX1910E/NOPB has the following pin configuration:

1. VCC: Power supply voltage input
2. GND: Ground reference
3. RFOUT: Output RF signal
4. CE: Chip enable control input
5. CLKIN: Reference clock input
6. RFIN: RF input for phase detector
7. VCOIN: Control voltage input for VCO tuning
8. LD: Lock detect output

Functional Features

• Fractional-N PLL architecture for precise frequency synthesis
• On-chip VCO (Voltage-Controlled Oscillator) for frequency generation
• Programmable output power level
• Integrated phase detector for frequency comparison and feedback control
• Lock detect output for monitoring PLL lock status

Advantages and Disadvantages

Advantages: - High-performance frequency synthesis with low phase noise - Wide frequency range suitable for various applications - Compact size allows for space-efficient designs - Low power consumption for energy-efficient operation

Disadvantages: - Limited output power range compared to some other synthesizers - Requires an external reference clock for operation

Working Principles

The LMX2531LQX1910E/NOPB utilizes a Fractional-N PLL architecture to generate precise frequencies. It compares the input reference clock (CLKIN) with the desired output frequency and adjusts the division ratio accordingly. The phase detector continuously monitors the phase difference between the two signals and provides feedback to the PLL, ensuring accurate frequency synthesis. The VCO generates the final output frequency based on the control voltage (VCOIN) received from the PLL.

Detailed Application Field Plans

The LMX2531LQX1910E/NOPB is widely used in various applications that require precise frequency synthesis, such as: - Wireless communication systems - Satellite communication - Radar systems - Test and measurement equipment - Frequency modulation (FM) broadcasting

Detailed and Complete Alternative Models

• LMX2531LQX1810E/NOPB: Similar specifications but with a lower frequency range (10 MHz - 1.8 GHz)
• LMX2531LQX2110E/NOPB: Similar specifications but with a higher frequency range (10 MHz - 4 GHz)
• LMX2531LQX1915E/NOPB: Similar specifications but with adjustable output power up to +15 dBm

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

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