CLC5903SM/NOPB

Overview

The CLC5903SM/NOPB is a dual digital tuner integrated circuit manufactured by National Semiconductor, now part of Texas Instruments. It functions as a two-channel digital downconverter (DDC) with an integrated automatic gain control (AGC) system. The device operates at a frequency of 52MHz and is designed for RF and wireless applications. It is housed in a 128-pin LFBGA package measuring 11x11 mm, suitable for surface mount technology.

Feature Summary

• Dual channel digital downconversion capability
• Integrated automatic gain control (AGC)
• Designed for RF and wireless signal processing

Applications

• RF signal processing systems
• Wireless communication devices
• Digital tuner implementations

Procurement Notes

Verify the manufacturer designation carefully, as National Semiconductor is now a division of Texas Instruments. Ensure the specific suffix /NOPB is included to confirm RoHS compliance and lead-free status. Cross-reference the 128-LFBGA package dimensions to ensure compatibility with existing PCB footprints before finalizing procurement orders.

Selection Notes

Select this component when a dual-channel solution with built-in AGC is required for frequencies up to 52MHz. Consider the 128-pin FBGA package size constraints during layout. This IC is appropriate for applications needing simultaneous digital downconversion without external AGC circuitry, simplifying the overall system design.

Part Context

This component belongs to the CLC5903 family of dual digital tuners. It represents a specialized integrated circuit solution for handling RF signals directly in the digital domain. The integration of AGC within the DDC structure distinguishes it from standard converters that require separate gain management stages.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify pin-to-pin compatibility and functional equivalence with any alternative components through official datasheet comparison.