SA636DK,118

RF Mixers Overview

The SA636DK,118 is a low-voltage high-performance monolithic FM IF system manufactured by NXP USA Inc. It integrates a mixer/oscillator and two limiting intermediate frequency amplifiers with a high-speed RSSI. The device operates on a supply voltage range of 2.7 V to 5.5 V and supports frequencies up to 500 MHz. Key electrical parameters include a noise figure of 12 dB and a gain of 11 dB, with a supply current of 6.5 mA. It is housed in a 20-SSOP package.

RF Mixers Feature Summary

• Integrates a mixer/oscillator and dual limiting IF amplifiers within a single monolithic structure.
• Features a high-speed Received Signal Strength Indicator (RSSI) for signal monitoring.
• Designed for low-voltage operation suitable for portable communication applications.

RF Mixers Applications

• FM IF systems
• Mobile phone receivers
• ASK modulation systems
• DECT applications
• FSK modulation systems

RF Mixers Procurement Notes

This component is officially listed as obsolete or discontinued by the manufacturer. Availability is restricted, and sourcing may require checking secondary market distributors. Verify end-of-life status and lead times carefully before finalizing designs, as new production units are no longer guaranteed from NXP USA Inc.

RF Mixers Selection Notes

Select this part for low-voltage FM IF applications requiring integrated mixing and RSSI capabilities. Ensure the design accommodates the 2.7 V to 5.5 V supply range and the 20-SSOP surface-mount package. Consider the 500 MHz maximum frequency limit and 12 dB noise figure when evaluating system performance requirements.

RF Mixers Part Context

The SA636 belongs to the SA6xx series of RF/IF building blocks from NXP Semiconductors. This series is known for providing complete solutions for wireless communication front-ends. The SA636 specifically targets FM IF processing, combining multiple functions into one chip to reduce board space and complexity in portable devices.

RF Mixers Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation. As the part is obsolete, engineers must evaluate alternative components based on functional equivalence, pin compatibility, and electrical specifications.