For proprietary applications the nRF51822 is complemented by an improved Gazell™ 2.4 GHz RF protocol stack providing interoperability with nRF24L Series Gazell-based applications. It consumes 30 percent less than the previous generation nRF24LE1.
The ANT SoC
The nRF51422 Flash-based ANT SoC is the world’s first single chip solution for ANT applications. It is a third generation Nordic ANT solution, and an ideal fit for cost, power, and size-constrained applications such as sports, fitness, and healthcare sensors.
The SoC supports Broadcast, Acknowledged, and Burst communication modes. It provides support for up to eight concurrent ANT channels and a 60 kbps burst rate – 300% faster than previous generation. The nRF51422 requires less than 32 kB of code space and 2 kB of RAM, leaving more that 224 kB of Flash and 14 kB of RAM available for application code.