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GreenPeak Emerald GP500C Communications Controller chip
The first ultra low power transceiver-centric communications controller chip for wireless sensor networks

The Emerald GP500C is the only IEEE 802.15.4 standard compliant chip available today with extreme low power features that enable energy harvesting solutions for wireless sensor networks.

The Emerald GP500C typically saves up to 85% of the energy of comparable products.
The GP500C’s low energy consumption allows developers to build sensor systems with a peak current of about 20mA (two times lower than typical) and a system sleep mode of below 100nA (ten times less than typical) without compromising the network reliability.

GP500C-driven networks powered by energy harvesting bring true maintenance-free operation.

 

Emerald GP500C Features


IEEE 802.15.4 compliant

2.4 GHz worldwide band

Supports a variety of ultra low power networking protocols

Data rate 250 Kb/s

Range 30-50m or 100-150 feet

Robust reliability based on embedded hardware antenna diversity to reduce dead spots and link reliability features
such as message-over-message enabling, excellent sensitivity, a robust signal processing engine as well as interference detection and avoidance mechanisms

Energy consumption
Consumes a fraction (10-25%)of the energy of traditional microcontroller based designs by using a lower peak current, ultra low leakage current & very short transmission times via just-in-time transmission scheduling
Sleep current: 100 nA compared to 1 μA typical
Communication current: packet processing at least 65% less energy

Hardware features
Integrated transceiver/ communications controller
Communication scheduler
Standby controller
Power supply manager
High level of integration enables system level cost savings

Standards Compliance
Designs using the Emerald GP500C communications controller are fully IEEE 802.15.4 compliant. Developers have the option to use GreenPeak’s ultra low power networking protocol which reaches beyond standard implementations while maintaining standard compliance.

The GP500C will also support a wide range of software stacks that can run on different processors including ZigBee as well as Low Power Routing, Low Power Sensing (robust communication under intermittent power availability), a Micro stack and other application-dedicated low power protocols.

Low BOM
Since the GP500C communications controller is an integrated solution, all key functions and features are integrated and
minimal external components are required.
The total system bill of material (BOM) will be lower and makes the GP500C best in class for total system cost,
allowing for the opening of mass markets for maintenance free sense and control applications.

Emerald GP500C productsheet

Innovative architectural concept
The Emerald GP500C has a ground-breaking architectural concept.
It is a communications controller that incorporates a transceiver with a fully integrated communications layer and an on-chip energy manager.

Unlike traditional solutions, the Emerald GP500C device is an “autonomous transceiver” able to drive and control the data communication instead of being driven by a microcontroller.

This allows the GP500C to greatly reduce energy consumption and enables end nodes to run on energy harvesting.

GP500C-driven networks powered by energy harvesting become truly wireless, free of power cords and free of batteries and bring true maintenance-free operation.

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