LTC6948IUFD-4

Product Overview

Category

The LTC6948IUFD-4 belongs to the category of integrated circuits (ICs).

Use

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

Characteristics

• High frequency accuracy and stability
• Wide frequency range
• Low phase noise
• Low power consumption
• Small form factor

Package

The LTC6948IUFD-4 is available in a small, surface-mount package.

Essence

The essence of LTC6948IUFD-4 lies in its ability to generate precise and stable frequencies for various electronic applications.

Packaging/Quantity

This product is typically packaged in reels or tubes, with a quantity of 1000 units per package.

Specifications

• Frequency Range: 1 MHz to 6 GHz
• Output Power: Adjustable up to +10 dBm
• Supply Voltage: 2.7 V to 5.5 V
• Operating Temperature Range: -40°C to +85°C
• Phase Noise: -150 dBc/Hz at 1 MHz offset
• Spurious Suppression: >60 dBc

Detailed Pin Configuration

The LTC6948IUFD-4 has the following pin configuration:

1. VCC: Power supply input
2. GND: Ground connection
3. RF_OUT: Output signal
4. REF_IN: Reference input for frequency synthesis
5. LE: Latch enable input
6. M0-M3: Control inputs for frequency selection
7. SDO: Serial data output
8. SDI: Serial data input
9. CLK: Clock input for serial communication

Functional Features

• Frequency synthesis with high accuracy and stability
• Programmable frequency selection through control inputs
• Serial communication interface for configuration
• Power-down mode for reduced power consumption
• Fast frequency switching capability

Advantages and Disadvantages

Advantages

• High frequency accuracy and stability
• Wide frequency range for versatile applications
• Low phase noise for improved signal quality
• Compact size for space-constrained designs
• Low power consumption for energy-efficient operation

Disadvantages

• Limited output power compared to dedicated RF amplifiers
• Requires an external reference signal for frequency synthesis

Working Principles

The LTC6948IUFD-4 utilizes a phase-locked loop (PLL) architecture to generate precise frequencies. It takes an external reference signal and uses it to synthesize the desired output frequency. The PLL continuously adjusts the internal oscillator to maintain accurate frequency generation.

Detailed Application Field Plans

The LTC6948IUFD-4 finds applications in various fields, including:

1. Wireless communication systems
2. Radar systems
3. Test and measurement equipment
4. Satellite communication systems
5. Frequency modulation (FM) radio transmitters
6. Clock generation for microcontrollers and digital circuits

Detailed and Complete Alternative Models

1. LTC6948IUFD-3: Similar to LTC6948IUFD-4 but with a different frequency range.
2. LTC6948IUFD-5: Similar to LTC6948IUFD-4 but with higher output power capability.
3. LTC6948IUFD-6: Similar to LTC6948IUFD-4 but optimized for low phase noise applications.

These alternative models offer similar functionality with slight variations to cater to specific requirements.

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