The U2795B-FP is a single-chip PLL frequency synthesizer IC designed for car radio applications, manufactured by Vishay. This IC integrates the complete functions of a PLL synthesizer required in car radios, minimizing external components and reducing overall system cost. It is optimized for frequency synthesis in AM, FM, and weather band tuners.

Applications:

• Car radio tuners (AM/FM/WB)
• Frequency synthesizers
• Automotive infotainment systems
• Communication receivers

Features:

• Single-chip PLL synthesizer
• Integrated crystal oscillator
• Programmable divider ratios
• High-speed I2C interface for control
• Low phase noise
• Wide supply voltage range
• Optimized for automotive applications
• Frequency range up to 1.1 GHz

Benefits:

• Reduced component count simplifies design and lowers BOM cost.
• High integration minimizes PCB space.
• Precise frequency control ensures accurate tuning.
• I2C interface provides easy integration with microcontrollers.
• Low phase noise improves signal quality.
• Robust design ensures reliable operation in automotive environments.

Technical Specifications:

The U2795B-FP operates with a supply voltage typically between 2.7V and 5.5V. It uses a crystal oscillator, typically at 13 MHz, and employs a programmable divider for frequency selection. Control and configuration are managed through an I2C interface. The IC features low phase noise, contributing to high-quality signal reception. It is available in a small footprint package suitable for automotive applications.

The U2795B-FP from Vishay is a highly integrated and reliable PLL frequency synthesizer, ideal for car radio and automotive infotainment applications, offering cost-effectiveness, ease of use, and high performance.