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Looking for suitable silicon (KL26/K20_50/K20_100) for Google AOA kit

Question asked by Kai Liu on Nov 11, 2013
Latest reply on Nov 14, 2013 by Carlos Neri

I have designed a development kit for Google ADB (Android Debug Bridge) with MKL25Z128VLK/VLH4. Now I am looking for a suitable silicon for AOA (Android Open Accessory).


KL25Z is a good choice, but not perfect.


The MCU used in AOA/ADK should have I2S/USB host.


FSL released a new FRDM-K20D50M with I2S port available on different GPIO. FRDM-KL46Z is better, it has separate column dedicated for I2S.


Since there is no application note for similar design, I am not confident if KL26/46 can offer enough computing power to process USB host communication as well as Audio playback + recording on 48MHz? Even M4F based K20D50 can only run up to 50MHz. Should I use K20D100?


But I can not find any pricing information for K20_100 at K20_100 产品概述


I can only find K20D50. There is no suitable boards for K20_100. I have to design it from scratch?