TRF6903PT

Overview

The TRF6903PT is a single-chip multiband RF transceiver from Texas Instruments designed for ISM bands below 1GHz. It supports frequencies of 315MHz, 433MHz, 868MHz, and 915MHz with ASK, FSK, and OOK modulation. The device operates on a 2.2V to 3.6V supply, drawing 10mA to 20mA during reception and 10mA to 37mA during transmission. It features an output power of 8dBm, a sensitivity of -6.5 dB, and a maximum data rate of 64kbps. Housed in a 48-LQFP (7x7) surface-mount package, it functions within a temperature range of -40°C to 85°C.

Feature Summary

• Integrates RF and baseband circuits into a single chip for compact design
• Supports multiple global ISM frequency bands under 1GHz
• Enables flexible digital modulation schemes including ASK, FSK, and OOK
• Utilizes SPI interface for configuration and control

Applications

• Wireless sensor networks
• Remote keyless entry systems
• Industrial telemetry
• Home automation devices

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific suffix 'PT' matches the required tape-and-reel packaging format. Check RoHS compliance status against current environmental regulations. Ensure the 48-LQFP footprint aligns with PCB layout specifications. Validate that the operating voltage range suits the target system power architecture.

Selection Notes

Select this component when multiband operation across 315MHz, 433MHz, 868MHz, and 915MHz is required. Consider the low power consumption profiles for battery-operated applications. Evaluate the 64kbps data rate limit against throughput needs. Assess the 8dBm output power capability for required link budget margins. Verify compatibility with existing microcontroller SPI interfaces for seamless integration.

Part Context

This part belongs to the TRF6903 family of single-chip RF transceivers. It serves as a general-purpose solution for sub-1GHz wireless communication. The device consolidates transmitter and receiver functions to reduce bill-of-materials complexity. It is distinct from dedicated transmitters like the TRF4903 series.

Replacement Considerations

TRF6903PTR is listed as a manufacturer-recommended substitute. Verify pinout and electrical parameter equivalence before substitution. Ensure the replacement variant maintains the same 48-LQFP package dimensions.

FAQ

What modulation types are supported by the TRF6903PT?

The device supports Amplitude Shift Keying (ASK), Frequency Shift Keying (FSK), and On-Off Keying (OOK).

What is the maximum data rate of the TRF6903PT?

The maximum data rate specified for this transceiver is 64kbps.