LTC6948IUFD-1

Product Overview

Category

The LTC6948IUFD-1 belongs to the category of integrated circuits (ICs).

Use

This product is primarily used in electronic devices for frequency synthesis and clock generation applications.

Characteristics

• High accuracy and stability in frequency synthesis
• Wide frequency range
• Low phase noise
• Programmable output frequency
• Flexible power supply options

Package

The LTC6948IUFD-1 is available in a small form factor, 16-lead QFN package.

Essence

The essence of this product lies in its ability to generate precise and stable frequencies for various electronic applications.

Packaging/Quantity

The LTC6948IUFD-1 is typically packaged in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

• Supply Voltage Range: 2.7V to 5.5V
• Output Frequency Range: 1MHz to 6.39GHz
• Output Power: -4dBm to +3dBm
• Phase Noise: -226dBc/Hz at 100kHz offset
• Operating Temperature Range: -40°C to 85°C

Detailed Pin Configuration

The LTC6948IUFD-1 has a total of 16 pins. The pin configuration is as follows:

1. VCC: Power supply voltage input
2. GND: Ground reference
3. REF_IN: Reference clock input
4. N/C: No connection
5. N/C: No connection
6. N/C: No connection
7. N/C: No connection
8. N/C: No connection
9. N/C: No connection
10. N/C: No connection
11. N/C: No connection
12. N/C: No connection
13. N/C: No connection
14. N/C: No connection
15. N/C: No connection
16. OUT: Output signal

Functional Features

• Fractional-N frequency synthesis
• Programmable output frequency and phase
• Low spurious content
• Fast frequency hopping capability
• Integrated VCO (Voltage Controlled Oscillator)
• On-chip loop filter

Advantages and Disadvantages

Advantages

• High accuracy and stability in frequency synthesis
• Wide frequency range for versatile applications
• Low phase noise for improved signal quality
• Flexible power supply options for compatibility
• Fast frequency hopping capability for dynamic applications

Disadvantages

• Relatively high cost compared to simpler frequency generation solutions
• Requires additional external components for optimal performance

Working Principles

The LTC6948IUFD-1 utilizes a fractional-N frequency synthesis technique to generate precise frequencies. It takes an input reference clock and uses a phase-locked loop (PLL) to divide and manipulate the frequency to achieve the desired output frequency. The integrated VCO provides the necessary oscillation, while the on-chip loop filter helps maintain stability and reduce noise.

Detailed Application Field Plans

The LTC6948IUFD-1 finds applications in various fields where accurate frequency synthesis is crucial. Some of the detailed application field plans include:

1. Wireless communication systems
2. Radar systems
3. Test and measurement equipment
4. Satellite communication systems
5. Industrial automation
6. Medical devices
7. Aerospace and defense systems

Detailed and Complete Alternative Models

1. LTC6948IUFD-2: Similar to LTC6948IUFD-1 but with extended frequency range up to 12.78GHz.
2. LTC6948IUFD-3: Enhanced version with lower phase noise performance.
3. LTC6948IUFD-4: Higher output power variant suitable for specific applications.

These alternative models provide options with different specifications and features to cater to specific requirements.

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