SA604AHRZ

Overview

The SA604AHRZ is a monolithic low-power FM intermediate frequency (IF) system manufactured by NXP USA Inc. It integrates two limiting IF amplifiers, a quadrature detector, and muting functionality within a single chip. The device operates at an IF frequency of 25 MHz and is housed in a compact 16-HXQFN (3x3 mm) package. Designed for high performance with minimal power consumption, it serves as a complete solution for FM demodulation in receiver architectures.

Feature Summary

• Integrates dual limiting IF amplifiers and quadrature detector
• Includes built-in muting circuitry for noise reduction
• Optimized for low-power operation in portable devices

Applications

• FM radio receivers
• Portable communication equipment
• Consumer audio electronics

Procurement Notes

Verify the component authenticity through authorized NXP distributors or certified suppliers. Confirm the part number suffix HRZ indicates RoHS compliance and specific packaging configuration. Request official datasheets to validate electrical characteristics against design requirements before procurement.

Selection Notes

Select this component when a compact, low-power FM IF solution is required. Ensure the application supports a 25 MHz IF frequency. Verify that the 16-HXQFN package dimensions fit the PCB layout constraints. Consider power supply voltage ranges specified in the datasheet for system compatibility.

Part Context

The SA604A series represents an improved generation of monolithic FM IF systems from NXP. It replaces older discrete solutions by integrating amplification, detection, and control functions. The HXQFN package offers a small footprint suitable for space-constrained modern electronic designs compared to traditional leaded packages.

Replacement Considerations

Check for direct pin-compatible replacements within the SA604 family. Verify if updated revisions offer enhanced specifications. Consult NXP documentation for recommended substitute part numbers if this specific variant is discontinued.