TDA7703R

RF Receivers Overview

The TDA7703R is a highly integrated AM/FM tuner IC for automotive radio applications, manufactured by STMicroelectronics. It features a fully integrated VCO and high-performance PLL for fast RDS system operation. The device includes AM/FM mixers with high image rejection capabilities. It utilizes a serial interface with inputs voltage-tolerant up to 3.5 V and outputs capable of driving currents up to 0.5 mA from an internal 3.3 V supply. The component is housed in a 44-LQFP package (44-TQFP 10x10) and is designated as an automotive-grade part.

RF Receivers Feature Summary

• Fully integrated VCO supporting world tuning standards
• High-performance PLL enabling rapid RDS system synchronization
• AM/FM mixers engineered for high image rejection performance

RF Receivers Applications

• Automotive AM/FM radio tuners
• Car audio entertainment systems
• Vehicle infotainment front-ends

RF Receivers Procurement Notes

Verify availability status carefully as this component may be discontinued or obsolete. Confirm the exact package marking and revision level against current inventory. Ensure compatibility with existing 3.3 V supply rails and 3.5 V tolerant logic interfaces. Check for valid RoHS3 compliance documentation if required for specific regional regulations. Validate that the 44-LQFP footprint matches the target PCB design constraints.

RF Receivers Selection Notes

Select this component for applications requiring a single-chip solution for AM/FM reception with integrated VCO functionality. Consider its automotive grade rating for reliability in vehicle environments. Evaluate the need for high image rejection mixers and fast RDS locking speeds. Ensure the design supports the specified serial interface voltage levels and output drive currents. Compare against newer tuner ICs if long-term supply assurance is critical.

RF Receivers Part Context

The TDA7703R belongs to STMicroelectronics' family of highly integrated car radio tuners. It is designed to replace discrete tuner solutions by combining RF processing, mixing, and control functions into one package. This integration reduces board space and simplifies the bill of materials for automotive audio manufacturers seeking compact and efficient radio receiver designs.

RF Receivers Replacement Considerations

Public confirmed substitute part numbers are not provided in the available documentation. Consult STMicroelectronics official channels for direct replacements or obsolescence notices.