ZigBee is an emerging wireless standard focused on lightweight, low cost, and low power networking of electronics. Integrating ZigBee into the cellular phone platform allows the phone to act as a Personal Environment Device, letting the owner control close range electronic items such as light switches, vacuum cleaners, and thermostats. The team designed and tested a Zigbee compliant baseband digital modem suitable for integration into QUALCOMM’s mobile cell phone ASIC designs.