Reverse Engineering PCB Circuitry Validation

Reverse Engineering PCB Circuitry Validation

Reverse Engineering PCB Circuitry Validation may consist of one or both of the two major electronic circuit disciplines, analog and/or digital. Documentations which include the layout drawing, list of component, Gerber file and schematic diagram should include the classical engineering tools and definitions.

Analog circuit designs should be checked for:

(1) Circuit stability,

(2) Step response,

(3) Frequency response,

(4) Gain and phase linearity,

(5) Slow rate,

(6) Non-linear characteristics,

(7) Thermal characteristics,

(8) Ripple and noise,

(9) Input/output parameter and impedance,

(10) Power consumption (max/min), and

(11) Specialized functional parameters,

 

Digital circuit designs should be checked for:

 

(1) Input/output level (with and without stimuli),

(2) Proper bias levels,

(3) Rise and fall time of signaling pulses,

(4) Clock frequency and duty cycle,

(5) Circuit interaction and component characteristics,

(6) Thermal characteristics,

(7) Input/output impedances,

(8) Functional parameters of circuitry/effects of fault simulation;