SX1223I073TRT

RF Transmitter Overview

The SX1223I073TRT is a single-chip UHF transmitter from Semtech Corporation, designed for the 425MHz to 475MHz frequency band. It features a highly integrated architecture that minimizes external component requirements while maintaining design flexibility. The device supports continuous phase 2-level FSK modulation and includes an on-chip frequency synthesizer. Key electrical parameters include a maximum RF output power of +10 dBm and a typical TX current consumption of 25.8mA at 10dBm. It operates with a supply voltage as low as 2.0V and supports data transmission rates ranging from 1.2 to 153.6 kb/s.

RF Transmitter Feature Summary

• Highly integrated single-chip architecture minimizing external components
• On-chip frequency synthesizer for stable operation
• Supports continuous phase 2-level FSK modulation
• Low power consumption with 2.0V minimum supply voltage

RF Transmitter Applications

• UHF ISM band communication systems
• Wireless sensor networks
• Remote control applications
• Data telemetry links

RF Transmitter Procurement Notes

Verify the specific frequency range (425-475 MHz) against your system requirements, as this suffix denotes a specific band variant. Confirm RoHS compliance and lead-free status through official documentation. Ensure the TQFN-24 package dimensions align with your PCB layout constraints. Cross-reference the part number with the manufacturer's latest datasheet to confirm active lifecycle status and availability.

RF Transmitter Selection Notes

Select this component when a compact, low-power UHF transmitter is required for FSK-based applications. It is suitable for designs prioritizing minimal bill of materials due to its high integration level. Consider the 2.0V operating voltage for battery-powered devices. Verify that the 425-475 MHz band meets regional regulatory requirements for your target market.

RF Transmitter Part Context

The SX1223 series represents Semtech's solution for simple, cost-effective UHF transmission needs. Unlike more complex transceivers, this part focuses solely on transmission capabilities within specific ISM bands. It serves as a foundational component for basic wireless data links where receiving functionality is handled by separate hardware or not required.

RF Transmitter Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult Semtech directly for potential obsolescence management or alternative recommendations if this specific band variant is discontinued.