There’s still plenty of innovation left in Bluetooth, said Bill McFarland, director of technology at Qualcomm Atheros, told me at an afternoon reception. He indicated a design (above) co-developed by Imec, the Holst Centre and Renesas with a 3.7mW receiver. The 40nm chip supports BTLE, Zigbee and packs a Cortex-M0 MCU.
Across the way, Dialog showed a 10mW device that integrates all RF components as well as a DC/DC converter so it can run on coin cells or AAA batteries.
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What I saw at ISSCC 2015: