The PAN1326B (ENW-89823A3KF) Bluetooth radio solution is intended to work in devices with a limited power budget such as cellular phones, headsets, hand-held PC’s... One of the main differentiators of the PAN13XX is its power management – its ability to draw as little current as possible. Supports typically 4 dBm Class 2 TX power w/o external PA, improving Bluetooth link robustness. Supply voltage range is: VDD_IN= -0.5V-5.5V;VDDIO_1.8V=-0.5V-2.145V.