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 […]