Semtech has released a line of “power and go” inexpensive data transmitter chips. The new SX1240 and SX1242 ISM-band RF transmitters enable true data-in/RF-out capability, with only an external crystal and antenna impedance matching network needed. They simplify design by integrating “power-and-go modes,” which are pre-set for 434 MHz and 868 MHz (SX1240) or 345 MHz (SX1242). These devices can be paired with Semtech’s low-power SX1239 RF receiver for a complete radio solution. Expected uses include keyless entry, active RFID and wireless monitoring applications.
Pricing for the SX1240 is anticipated in the sub-$1.00 range for the SOIC8-EP package. Check out the datasheet.
At first, I read the title as Semtex :D