TRF7900APW [Texas Instruments]

The TRF7900A is a dual integrated RF transceiver designed for human-interface devices (HID). Operating at 27 MHz, it integrates multiple components (PLL, RF mixer, simulated SAW filter, tuning circuit, and miscellaneous passive components) to provide frequency selection from 8 discrete channels. This integration lowers component, manufacturing and system costs. The TRF7900A simplifies system design by reducing system component count and manual circuit tuning.