TRF6900APT

Overview

The TRF6900APT is a single-chip RF transceiver from Texas Instruments designed for ISM band applications. It integrates complete transmit and receive circuits, including an RF power amplifier, low-noise amplifier, PLL, and DDS. The device operates within the 850 MHz to 950 MHz frequency range with a supply voltage of 2.2 V to 3.6 V. It features a high-throughput 16-bit RISC microcontroller running at up to 8 MIPS. The package is a 48-lead LQFP. Key electrical parameters include a maximum output power of +5 dBm and standby current consumption between 0.5 μA and 5 μA.

Feature Summary

• Integrates full RF front-end and baseband processing on a single CMOS chip
• Supports FM and FSK modulation modes for data transmission
• Utilizes a 16-bit RISC microcontroller for high-speed control and processing
• Features a three-wire serial interface for easy microcontroller connection

Applications

• Computer telemetry and remote control systems
• Handheld battery-operated instrumentation devices
• Security and alarm systems
• Bidirectional wireless data transfer in ISM bands

Procurement Notes

Verify the specific suffix 'APT' against the official Texas Instruments datasheet to confirm the tape-and-reel or tray packaging configuration and temperature grade. Ensure the component matches the PQFP-48 pinout and marking code 'TRF6900A'. Cross-reference the RoHS compliance status with the manufacturer's latest environmental declaration, as legacy parts may have varying compliance statuses depending on production lot dates.

Selection Notes

Select this component when designing systems requiring integrated RF transmission and reception in the 850-950 MHz range without external mixers or amplifiers. It is suitable for applications demanding low standby current for battery-powered operation. Consider the 16-bit RISC architecture if complex protocol handling or signal processing is required on-chip. Ensure the system design accommodates the 2.2V to 3.6V supply range and the thermal characteristics of the LQFP-48 package.

Part Context

The TRF6900 series represents Texas Instruments' solution for compact, low-power wireless communication modules. The TRF6900APT variant specifically denotes the commercial temperature grade version housed in a 48-lead LQFP package. This part belongs to a family of single-chip transceivers aimed at simplifying RF design by integrating analog and digital functions, reducing board space and component count for ISM band applications.

Replacement Considerations

Public confirmed substitutes include the TRF6900PT (commercial grade, same package) and TRF6900APTR (reel version). Verify that any replacement maintains the same 48-LQFP footprint and electrical specifications. Check for lead-free variants such as TRF6900APTG4 if RoHS compliance is mandatory for the target assembly.