TUTORIALS 732

Novel Approach Yields 100mW Bluetooth Amplifier


Abstract: This application noteprovides a Bluetooth® history from 1994 to the present, as well as the Ericsson® corporation's role in the system evolution. Bluetooth operates in the ISM band between 2400MHz and 2500MHz, using FHSS on 79 channels with 1MHz spacing. This application note also describes how to use Bluetooth for long-range systems with 100mW output power. An example details a discrete power amplifier (PA), the MAX2240, and the supporting bias and power control circuitry.