SA614AD,118

Overview

The SA614AD,118 is a monolithic low-power FM IF system by NXP USA Inc., housed in a 16-SOIC package. It operates at a frequency of 25MHz and supports RF types including cellular, ASK, and FSK applications. The device integrates two limiting intermediate frequency amplifiers, a quadrature detector, and muting functionality. It features RSSI capability and is designed for surface mount installation with a height of 1.35mm. The component is RoHS compliant and classified as obsolete.

Feature Summary

• Integrates dual limiting intermediate frequency amplifiers for signal processing
• Includes an on-chip quadrature detector for demodulation
• Features built-in muting functionality to suppress noise
• Equipped with Received Signal Strength Indicator (RSSI) output

Applications

• Cellular communication systems
• ASK modulation receivers
• FSK modulation receivers

Procurement Notes

Verify component status carefully as the SA614AD,118 is officially listed as obsolete by the manufacturer. Confirm availability through authorized distributors or secondary markets if sourcing is required. Ensure that the 16-SOIC package dimensions and pinout match the design specifications. Check for RoHS compliance documentation to meet environmental regulations. Validate that the 25MHz operating frequency aligns with the target application requirements before procurement.

Selection Notes

Select this component for designs requiring a complete FM IF solution in a compact surface-mount form factor. The integrated quadrature detector and limiting amplifiers reduce external component count. Consider the 25MHz frequency limit when designing for higher bandwidth applications. The RSSI feature allows for signal strength monitoring without additional circuitry. Verify compatibility with ASK and FSK protocols if used in digital transmission contexts.

Part Context

The SA614A series represents an improved monolithic low-power FM IF system. The SA614AD,118 variant specifically denotes the tape and reel packaging format within the 16-SOIC family. This series is designed to simplify receiver architecture by combining critical analog stages into a single chip. It serves as a legacy solution for specific RF front-end applications requiring integrated demodulation capabilities.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. As the product status is obsolete, alternative components must be sourced based on functional equivalence rather than direct cross-reference lists.