1. FLAC Audio Player Brett Mravec with Isaac Jones Greg McCoy Danielle Miller Team 9

2. Overview Plays FLAC files to audio out LCD Display SD card storage Battery operated Battery recharge capabilities

3. Criticality Levels High – Potential for personal injury λ < 10 -9 Medium – System failure λ < 10 -6 Low – Component Failure λ < 10 -5

4. Components for Analysis DSP 3.3 V Regulator IC 5 V Boost IC Battery Charging IC

5. FMECA Failure No.Failure ModePossible Cause Failure EffectDetection Method Criticality A1 (Battery Charging IC) Output = 0VFailure of Charging IC Battery won’t charge ObservationLow A2 (Battery Charging IC) IC sourcing large current Short through charging IC Battery Damage Excessive Heat / Fire High

6. FMECA Failure No.Failure ModePossible Cause Failure EffectDetection Method Criticality B2 (DSP) DSP does not output correctly Chip failureSystem would not function ObservationMedium C3 (5V Boost IC) Output = 0VFailure of a component in boost circuit LCD and Audio would fail ObservationMedium D4 (3.3 V Regulator) Output = 0VFailure of a component in regulator circuit System would not function ObservationMedium

7. Questions?