LA1654C-X1

Overview

The LA1654C-X1 is a bare die time code reception integrated circuit manufactured by onsemi. It operates within a frequency range of 37.5kHz to 80kHz, designed for precise signal decoding applications. The component requires an external 0.47μF capacitor connected to the VCC pin and functions with a supply voltage of 3.0V. It draws a current consumption (ICC) of 50Ω equivalent load characteristics. This IC is part of the LA1654C series and is supplied in a waffle pack format containing 2250 units per package.

Feature Summary

• Dedicated hardware architecture for time code signal reception and decoding
• Operates as a bare die chip suitable for custom substrate integration
• Supports standard time code frequency bands from 37.5kHz to 80kHz

Applications

• Time code synchronization systems
• Broadcast equipment timing interfaces
• Precision clock distribution networks

Procurement Notes

Verify availability status carefully as this component is listed as obsolete or discontinued by major distributors. Confirm if existing stock or last-time-buy options are accessible through authorized channels. Ensure the bare die form factor matches your PCB design capabilities, as it lacks a traditional packaged enclosure. Cross-reference the specific suffix X1 with the base LA1654C datasheet to confirm functional equivalence and packaging specifications before finalizing procurement plans.

Selection Notes

Select this component only if your design accommodates bare die mounting techniques and can provide the required 3.0V supply with appropriate decoupling. Consider the operational frequency range requirements against the 37.5kHz to 80kHz specification. Evaluate the need for dedicated time code reception versus general-purpose timer solutions. Check for alternative active components if long-term supply stability is critical, given the obsolete status of this specific part number.

Part Context

The LA1654C-X1 belongs to onsemi's family of timers and support products, specifically categorized under clock and timer ICs. It serves as a specialized solution for receiving and processing time code signals in professional audio and broadcast environments. As a bare die product, it offers flexibility for high-density integration but requires careful handling during assembly compared to standard packaged ICs.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation. Due to the obsolete status, direct replacements may require redesigning the application circuit around different time code receiver architectures.