SA58640DK,112

RF Mixers Overview

The SA58640DK,112 is a low-voltage monolithic FM intermediate frequency (IF) system manufactured by NXP USA Inc. It integrates a mixer/oscillator, two limiting IF amplifiers, quadrature detectors, logarithmic RSSI, a voltage regulator, and audio/RSSI operational amplifiers. Designed for surface mount installation in a 20-lead SSOP package with a body width of 4.4 mm, it operates within a supply voltage range of 4.5V to 6V. The device supports up/down conversion at frequencies up to 100MHz with a mixer circuit gain of 17dB.

RF Mixers Feature Summary

• Integrates complete FM IF processing chain including limiting amplifiers and quadrature detection
• Includes built-in voltage regulator and logarithmic received signal strength indication
• Combines mixer and oscillator functions for efficient up/down conversion
• Features dedicated audio and RSSI operational amplifiers

RF Mixers Applications

• Low-voltage FM intermediate frequency receiver systems
• Up and down conversion mixer circuits
• FM broadcast reception modules
• Integrated RF front-end designs requiring RSSI monitoring

RF Mixers Procurement Notes

Verify the specific ordering suffix, such as ,112 or ,118, against the manufacturer's current documentation to ensure correct packaging and tape-and-reel specifications. Confirm that the 20-SSOP package dimensions match your PCB footprint requirements. Check for any product change notifications or end-of-life status updates from NXP USA Inc. prior to finalizing procurement plans.

RF Mixers Selection Notes

Select this component when a single-chip solution for FM IF processing is required to minimize board space and component count. It is suitable for designs operating between 4.5V and 6V that need integrated signal strength monitoring via logarithmic RSSI. Ensure the application does not require higher voltage operation or different package types than the provided SSOP20 option.

RF Mixers Part Context

This part belongs to the SA5864x series of low-voltage monolithic FM IF systems from NXP. These devices are designed to simplify receiver architecture by combining multiple analog stages into one IC. The SA58640DK variant specifically targets applications needing up/down conversion capabilities alongside standard IF amplification and demodulation functions in a compact surface-mount form factor.