LMX2485SQX/NOPB

Overview

Product Category

The LMX2485SQX/NOPB belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used in electronic devices for frequency synthesis and clock generation applications.

Characteristics

• High-performance frequency synthesizer
• Low phase noise and spurious performance
• Wide frequency range
• Flexible output divider ratios
• Low power consumption

Package

The LMX2485SQX/NOPB is available in a small outline integrated circuit (SOIC) package.

Essence

The essence of the LMX2485SQX/NOPB lies in its ability to generate stable and accurate frequencies for various electronic systems.

Packaging/Quantity

The LMX2485SQX/NOPB is typically packaged in reels, with each reel containing a specific quantity of ICs. The exact quantity may vary depending on the manufacturer's specifications.

Specifications

• Frequency range: 10 MHz to 6 GHz
• Output divider ratios: 1 to 4095
• Supply voltage: 2.7 V to 3.6 V
• Operating temperature range: -40°C to +85°C
• Phase noise performance: -150 dBc/Hz at 100 kHz offset

Detailed Pin Configuration

The LMX2485SQX/NOPB features a total of 20 pins, each serving a specific function. The pin configuration is as follows:

1. VDDA: Analog power supply
2. GND: Ground
3. VDDC: Digital power supply
4. GND: Ground
5. NC: No connection
6. NC: No connection
7. NC: No connection
8. NC: No connection
9. NC: No connection
10. NC: No connection
11. NC: No connection
12. NC: No connection
13. NC: No connection
14. NC: No connection
15. NC: No connection
16. NC: No connection
17. NC: No connection
18. NC: No connection
19. RFOUT: RF output
20. GND: Ground

Functional Features

• Fractional-N frequency synthesis
• Programmable output divider
• Integrated voltage-controlled oscillator (VCO)
• Serial interface for control and configuration
• Low power consumption

Advantages and Disadvantages

Advantages

• High-performance frequency synthesis
• Wide frequency range
• Low phase noise and spurious performance
• Flexible output divider ratios
• Compact package size

Disadvantages

• Limited availability of alternative models
• Relatively high cost compared to some alternatives

Working Principles

The LMX2485SQX/NOPB utilizes a fractional-N frequency synthesis technique to generate precise frequencies. It incorporates a voltage-controlled oscillator (VCO) that can be controlled through a serial interface. The IC also features an integrated programmable output divider, allowing for further frequency customization.

Detailed Application Field Plans

The LMX2485SQX/NOPB finds applications in various fields, including:

1. Wireless communication systems
2. Satellite communication equipment
3. Radar systems
4. Test and measurement instruments
5. Frequency synthesizers
6. Clock generation circuits

Detailed and Complete Alternative Models

While the LMX2485SQX/NOPB is a highly capable IC, there are alternative models available in the market that offer similar functionality. Some notable alternatives include:

1. LMX2492SQX/NOPB
2. LMX2595SQX/NOPB
3. LMX2642SQX/NOPB
4. LMX2710SQX/NOPB
5. LMX2830SQX/NOPB

These alternative models provide comparable features and can be considered based on specific application requirements.

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