SA615DK/01,112

RF Mixers Overview

The SA615DK/01,112 is a discontinued high-performance monolithic low-power FM IF system by NXP USA Inc. It integrates a mixer/oscillator, two limiting intermediate frequency amplifiers, quadrature detectors, silence circuits, logarithmic RSSI, and a voltage regulator. Key electrical parameters include a supply voltage range of 4.5V to 8V, typical supply current of 7.4mA, and a noise figure of 5dB. The device supports frequencies up to 500MHz with a gain of 13dB and contains three mixers. It is housed in a 20-SSOP package.

RF Mixers Feature Summary

• Integrates mixer, oscillator, and dual limiting IF amplifiers for complete signal processing
• Includes quadrature detectors and logarithmic RSSI for advanced demodulation and signal strength indication
• Features built-in silence circuitry and internal voltage regulator for simplified system design

RF Mixers Applications

• Cellular communication systems
• ASK modulation receivers
• FSK modulation receivers
• UHF transceiver modules
• VHF transceiver modules

RF Mixers Procurement Notes

This component is officially marked as No Longer Manufactured (NLM) or discontinued by NXP Semiconductors. Procurement must focus on identifying verified replacement parts from the same manufacturer family or compatible alternatives. Verify that any substitute part meets the original pinout, voltage, and performance requirements before integration into existing designs.

RF Mixers Selection Notes

Select this component only if legacy compatibility is required, as it is no longer in production. Designers should evaluate modern replacements within the SA6xx series or newer NXP RF solutions. Ensure the new selection matches the 20-SSOP footprint or requires adapter solutions. Confirm that the alternative supports the necessary 4.5V to 8V supply range and 500MHz operational frequency.

RF Mixers Part Context

The SA615 belongs to the SA6xx series of RF/IF building blocks designed for wireless applications. This specific variant, SA615DK/01,112, represents a tube-packaged version of the broader SA615 family. The series is known for combining multiple RF functions into a single monolithic IC to reduce board space and power consumption in portable devices.

RF Mixers Replacement Considerations

Public confirmed substitutes are not explicitly listed in the provided documentation. Users must consult NXP official resources for current cross-reference data. Consider checking the SA615DK/01,118 variant for packaging differences, though availability status should be verified.