New transceiver extends ZigBee feature set
GreenPeak Technologies recently introduced the GP501, a new generation of ZigBee transceivers with a coexistence scheme that allows Wi-Fi, Bluetooth, and ZigBee chips to work side by side in the same device. ZigBee shares the 2.4 GHz frequency band with other Wi-Fi equipment, resulting in potential RF interference when operating simultaneously. The GP501 has a coexistence interface that enables arbitration over the shared radio frequency medium to prevent contention, signal degradation, and data loss.
A new feature of the GP501 ZigBee transceiver chip is the Deep Packet Inspection (DPI) for ZigBee applications allowing the host processor to go into a deep-sleep mode to conserve power. The DPI feature can be used for Wake-on-LAN functionality, where the ultra-low power ZigBee chip is used to wake up the main processor from sleep mode to enable Wi-Fi networking. Another advantage of the GP501 is the 32-pin, 5 mm x 5 mm footprint, allowing integration into smaller product form factors.