Specifications
2
VERSION HISTORY 
Version number:  Updates / Changes: 
1.1  Bluetooth and FCC qualification IDs added 
1.0 
Soldering recommendations added. Layout guide fixed. Details at 
VREG_ENA. Operating temperature range fixed. 
0.992  New images added 
0.991  Missing pin added to recommended land pattern design 
0.99 
Microphone biasing recommendation fixed. Voltage regulator 
enable pin description added. Some small fixes. Layout 
guidelines for the audio traces added. 
0.98 
Version history added. Microphone biasing recommendations 
specified. Package information added. Pinout AIO0 and AIO1 
fixed. 
0.97 
VREG_ENA pin added to the production version of the module 
Layout recommendations added 
0.98 Fixed cross references 










