SA616DK/01,112

RF Mixers Overview

The SA616DK/01,112 is a low-voltage high-performance monolithic FM IF system by NXP. It integrates a mixer/oscillator, two limiting IF amplifiers, quadrature detector, logarithmic RSSI, voltage regulator, and audio/RSSI op amps. Designed for portable communications, it operates down to 2.7 V. Key electrical parameters include a typical current consumption of 3.5 mA at 3 V, mixer conversion power gain of 17 dB at 45 MHz, and 102 dB of IF amp/limiter gain. The device supports frequencies up to 150 MHz with an XTAL oscillator and features a temperature-compensated logarithmic RSSI with an 80 dB dynamic range.

RF Mixers Feature Summary

• Integrates complete FM IF processing chain including mixer, oscillators, amplifiers, and detectors in a single monolithic package
• Provides temperature-compensated logarithmic Received Signal Strength Indicator (RSSI) for signal monitoring
• Features accessible feedback paths for audio and RSSI operational amplifiers to allow output level adjustment or filtering addition
• Designed for low-power operation suitable for battery-powered portable communication applications

RF Mixers Applications

• Portable mobile radio systems
• FM receiver intermediate frequency stages
• Low-voltage communication devices
• Battery-operated telemetry equipment

RF Mixers Procurement Notes

Verify the specific ordering suffix, such as 112 versus 118, to ensure correct packaging configuration, as these designations typically indicate different reel or tape specifications rather than functional differences. Confirm that the component meets the required non-automotive qualification standards if intended for industrial or consumer use. Cross-reference the manufacturer's latest documentation to ensure compatibility with current supply chain requirements and lead times.

RF Mixers Selection Notes

Select this component when a complete FM IF solution is required to minimize external component count. It is appropriate for designs needing low voltage operation down to 2.7 V and integrated RSSI functionality. Consider the SSOP20 or HVQFN20 package availability based on PCB space constraints. Ensure the application does not require automotive-grade qualification, as this part is specified for general electronic use.

RF Mixers Part Context

The SA616DK/01,112 belongs to the SA616 family of FM IF systems from NXP. It shares architectural similarities with the SA615 RF section but adds integrated limiting amplifiers and detection capabilities. This series is designed to replace discrete solutions, offering a compact alternative for standard FM broadcast and two-way radio applications requiring high performance at low power.

RF Mixers Replacement Considerations

• SA616DK/01,118

RF Mixers FAQ

What oscillator types are supported by the SA616?

The device supports an XTAL oscillator effective up to 150 MHz. For higher frequencies, an LC oscillator or external oscillator can be utilized.

How is the RSSI output configured?

The SA616 includes a logarithmic RSSI with an 80 dB dynamic range. The output has an amplifier with access to the feedback path, allowing designers to adjust output levels or add filtering.