Quick Start Guide

Apollo3 Blue Plus EVB Quick Start Guide
QS_A3P_1p00 Page 14 2019 Ambiq Micro, Inc.
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7. FTDI Interface
The on-board FTDI chip (FT4222H) is a SPI to USB data streaming interface from the Apollo3 Blue Plus to
the connected PC. Transfer speed can exceed 200KBytes/sec, and the user can send generic data and
audio data to the PC over the interface at same time. Audio data is supported in raw PCM (16bit/16Khz),
SPP and OPUS formats. Complete instructions for using the interface with provided software can be found
in an article in the Ambiq Micro Support Community Knowledge Base -
https://support.ambiqmicro.com/hc/en-us/articles/360037829251.