TDA7427D STMicroelectronics | AM/FM PLL Frequency Synthesizer IC - AICCHIP

Product Overview: TDA7427D

The TDA7427D is a dedicated PLL (Phase-Locked Loop) frequency synthesizer and IF (Intermediate Frequency) counter manufactured by STMicroelectronics. It is specifically designed to perform all the necessary tuning functions in complete AM/FM radio systems, making it highly suitable for conventional car radios and high-speed RDS (Radio Data System) tuners. The device features an on-chip reference oscillator, a VHF input supporting frequencies up to 290MHz (suitable for DAB applications), and an HF input up to 64MHz for shortwave bands. Fully programmable via a standard I²C bus interface, it provides precise digital control over the tuning process. Although officially marked as Obsolete (EOL), the TDA7427D remains a highly sought-after component for the repair, maintenance, and remanufacturing of legacy automotive audio and tuner systems.

Core Technical Specifications

Global B2B Sourcing for Legacy Tuner ICs

AICCHIP specializes in the global distribution of factory-original electronic components, with a strong focus on sourcing high-demand, hard-to-find, and Obsolete (EOL) automotive ICs like the TDA7427D. We understand the critical need for authentic parts to keep legacy vehicle infrastructure and industrial radio systems operational. Our inventory is strictly verified and dispatched directly from our strategic transit hubs in Shenzhen and Hong Kong. To support our global B2B partners, especially in Europe and Russia, we offer customized DDP/DDU logistics solutions that handle all customs clearances for a seamless, door-to-door delivery experience. As market supply for this discontinued component is highly limited, please contact our sales engineering team directly via WhatsApp for real-time stock levels, Date Code (D/C) verification, and volume RFQs.