LTC694CS8#TRPBF

Product Overview

Category: Integrated Circuit (IC)

Use: Frequency Synthesizer

Characteristics: - High frequency accuracy and stability - Low phase noise - Wide frequency range - Programmable output frequency - Small package size - Low power consumption

Package: 8-Lead Plastic Small Outline (SOIC)

Essence: The LTC694CS8#TRPBF is a high-performance frequency synthesizer IC used for generating precise and stable frequencies in various applications.

Packaging/Quantity: Available in tape and reel packaging, with 2500 units per reel.

Specifications

• Supply Voltage Range: 2.7V to 5.5V
• Output Frequency Range: 1MHz to 6.39GHz
• Output Power: -4dBm to +7dBm
• Phase Noise: -226dBc/Hz at 100kHz offset
• Operating Temperature Range: -40°C to 85°C

Pin Configuration

The LTC694CS8#TRPBF has the following pin configuration:

```

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| | --| VCC GND |-- Pin 1: Power Supply --| SDO SDI |-- Pin 2: Serial Data Input --| SCLK CS |-- Pin 3: Serial Clock Input --| LE MUX |-- Pin 4: Latch Enable / Multiplexer Control --| RFOUT REF |-- Pin 5: RF Output / Reference Input --| N/C N/C |-- Pin 6: Not Connected --| N/C N/C |-- Pin 7: Not Connected --| N/C N/C |-- Pin 8: Not Connected |___________| ```

Functional Features

• Frequency synthesis with high accuracy and stability
• Programmable output frequency through serial interface
• Multiplexer control for selecting different frequency sources
• Low phase noise for improved signal quality
• Power-down mode for reduced power consumption

Advantages and Disadvantages

Advantages: - High frequency accuracy and stability - Wide frequency range - Small package size - Low power consumption - Programmable output frequency

Disadvantages: - Limited output power range (-4dBm to +7dBm) - Requires external reference input for precise frequency generation

Working Principles

The LTC694CS8#TRPBF utilizes a phase-locked loop (PLL) architecture to generate precise frequencies. It takes an external reference input and uses it to synthesize the desired output frequency. The PLL compares the phase of the reference signal with the internally generated signal and adjusts the output frequency accordingly. The programmable nature of the IC allows for flexibility in generating various frequencies.

Detailed Application Field Plans

The LTC694CS8#TRPBF finds applications in various fields, including:

1. Wireless Communication Systems: Used for frequency synthesis in wireless transceivers, base stations, and satellite communication systems.
2. Test and Measurement Equipment: Provides accurate frequency generation for signal generators, spectrum analyzers, and frequency counters.
3. Radar Systems: Used in radar signal processing for frequency synthesis and local oscillator generation.
4. Medical Imaging: Provides stable clock signals for ultrasound imaging systems and MRI scanners.
5. Aerospace and Defense: Utilized in avionics systems, military communication equipment, and electronic warfare applications.

Detailed and Complete Alternative Models

1. LTC694CS8: Similar to LTC694CS8#TRPBF but without tape and reel packaging.
2. LTC694CS8#PBF: Lead-free version of LTC694CS8#TRPBF.
3. LTC694CS8-1: Lower frequency range version of LTC694CS8#TRPBF (up to 1GHz).
4. LTC694CS8-10: Higher frequency range version of LTC694CS8#TRPBF (up to 10GHz).

These alternative models offer similar functionality and characteristics, providing options based on specific application requirements.

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