10/16/2002 - Providing digital base band and radio frequency (RF) designers with cost-effective and programmable frequency via serial port interface, Texas Instruments(TI) introduced a low-cost device for frequency shift keying (FSK) or on-off keying (OOK) transceiver applications in wireless data communications, PDAs, remote sensors, wireless metering, security systems, keyless entry, home automation and garage door openers. Products employing this device can wirelessly transmit and/or receive up to 64Kbps of information at distances greater than 200 meters.
The TRF6901 is an integrated circuit intended for use as a low cost FSK or OOK transceiver to establish a frequency-programmable, half-duplex, bi-directional radio frequency (RF) link. The multi-channel RF transceiver is intended for digitally (FSK, OOK) modulated applications in the 860 to 930MHz band. The single-chip transceiver operates down to 1.8V with an on-board DC/DC converter and is designed for low power consumption. The synthesizer has a typical frequency resolution of approximately 200 kHz and features a fully integrated voltage-controlled oscillator (VCO). There is also code available from TIīs MSP430 microcontroller family to program this device.
"Programmability is important to RF and digital base band designers because modern wireless transceivers need the ability to operate over a number of frequency channels in a programmable manner to avoid interference, increase data throughput and utilize higher allowable transmit power. Furthermore, its flexibility minimizes hardware development effort," said Juan Alvarez, marketing manager for TIīs ISM RF products. "This is the most cost-effective device in the industry thatīs frequency programmable between 860 and 930 MHz via serial port".
Additional features include:
The TRF6901 is available now from TI and its authorized distributors in a PT (PQFP) package. Suggested resale pricing in quantities of 10,000 units is $2.51.
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