Audio PICtail
™
Plus Daughter Board User’s Guide
DS70297A-page 24 © 2007 Microchip Technology Inc.
FIGURE A-2: SPEECH SAMPLING INTERFACE SCHEMATIC
FIGURE A-3: ANTI-ALIASING LOW-PASS FILTER SCHEMATIC
R29
U4:A
C18
0.1 µF
J8
MIC/SIG IN
J1
J5
Line/Microphone Amplifier
