SI4322-A0-FTR

RF Receivers Overview

The SI4322-A0-FTR is a single-chip, low-power, multi-channel FSK receiver designed for ISM band applications. It operates in the 868 MHz and 915 MHz frequency ranges, supporting FCC and ETSI conformance for unlicensed use. The device features an integrated PLL synthesizer and I/Q demodulator, enabling robust signal processing with high sensitivity of -104 dBm. Packaged in a TSSOP-16 form factor, it supports 2.5V and 3.3V supply voltages. This component is optimized for remote control, keyless entry, and security systems requiring reliable sub-GHz reception.

RF Receivers Feature Summary

• Integrated PLL synthesizer and I/Q demodulator for efficient signal processing
• Multi-channel capability supporting multiple data rates and frequencies
• Low power consumption suitable for battery-operated devices
• Compliance with FCC and ETSI regulations for unlicensed ISM bands

RF Receivers Applications

• Remote control systems
• Keyless entry (RKE) systems
• Security alarm systems

RF Receivers Procurement Notes

Verify the specific suffix 'A0' against the manufacturer's latest datasheet to confirm pinout and electrical characteristics match your design requirements. Ensure the TSSOP-16 package dimensions align with your PCB footprint. Confirm that the 868/915 MHz frequency range complies with local regulatory standards for your target market. Cross-reference the operating voltage range (2.5V/3.3V) with your system's power supply rails to ensure compatibility.

RF Receivers Selection Notes

Select this component when a dedicated, low-cost FSK receiver is required for sub-GHz ISM bands. It is suitable for applications where multi-channel operation and high sensitivity are critical. Consider this part if you need a solution that simplifies design by integrating the PLL and demodulator on a single chip. Evaluate its low power profile against your battery life requirements. Compare its performance against other receivers in the same family if broader feature sets are needed.

RF Receivers Part Context

The SI4322 belongs to Silicon Labs' portfolio of universal ISM band receivers. It is part of a series designed for cost-sensitive, high-volume applications. The device complements other transceivers in the lineup by offering a receive-only solution. Its architecture is optimized for simplicity and reliability in standard wireless protocols. The TSSOP-16 package provides a compact solution for space-constrained designs.

RF Receivers Replacement Considerations

Check for direct substitutes within the Si43xx family, such as the SI4321 or SI4320, depending on channel count and frequency band requirements. Verify pin-to-pin compatibility before substitution. Review updated datasheets for any changes in electrical specifications or package options. Ensure that any replacement part meets the same regulatory compliance standards.