A Low Phase Noise Ring-VCO Based PLL Using Injection Locking for ZigBee Applications
The necessity for mobile computing and networking has led to the development of various wireless standards over the last decade. One of these standards is IEEE 802.15.4/ZigBee that has been recently developed to provide the needs of low power, low data rate, low production cost and short range wireless networks. This new standard is specifically related to applications such as data monitoring, industrial control and sensor networks. To reduce production cost, single chip solutions are required.