ATR4289-TBSY

Overview

The ATR4289-TBSY is an integrated circuit manufactured by Microchip Technology, classified under RF Misc ICs and Modules. It functions as an AM/FM PLL frequency synthesizer designed for radio applications. The device supports a maximum input frequency of 15MHz and operates with a single circuit configuration. It is housed in a 16-SOIC surface mount package, measuring 10 mm in length, 3.8 mm in width, and 1.4 mm in height. The component accepts a maximum supply voltage of 5.5V and complies with RoHS standards.

Feature Summary

• Integrated AM/FM phase-locked loop functionality
• Surface mount 16-SOIC packaging
• RoHS compliant construction

Applications

• AM radio receiver systems
• FM radio receiver systems
• Frequency synthesis circuits

Procurement Notes

Verify the obsolete part status before procurement planning. Confirm the specific suffix TBSY matches the required 16-SOIC package dimensions and pinout. Ensure compatibility with the 5.5V maximum supply voltage limit. Check for available replacement alternatives due to end-of-life status. Validate RoHS compliance requirements against current regulatory standards.

Selection Notes

Select this component only if a dedicated AM/FM PLL solution is required within the 15MHz operational range. The 16-SOIC package dictates the PCB layout constraints. Consider the obsolete status when designing for long-term production runs. Verify that the single-circuit architecture meets the system's modulation requirements without needing additional external synthesizers.

Part Context

This part belongs to the Microchip Technology RF Misc ICs family. It serves as a specialized frequency synthesizer for analog radio applications. The device integrates the PLL logic necessary for stable carrier generation in AM and FM receivers. Its design focuses on compact surface-mount integration for consumer electronics.

Replacement Considerations

Public confirmed substitute part numbers are not explicitly documented in the provided source material. Due to the obsolete status, verify cross-reference data through official Microchip channels or authorized distributors for compatible replacements.