Digital Signal Processing Circuits. Testing requirements for digital circuits shall specify all possible combinations of inputs and resulting outputs. Inputs and output signal parameters shall be explicitly defined. Truth tables alone are not sufficient to specify the input/output characteristics of a given digital circuit, but may be provided as supplementary information. Applicable requirements for digital circuits shall be specified to define the test requirements for D/A and A/D circuits. GO/NO-GO type acceptance criteria shall be acceptable only for those measurements where test effectiveness is not compromised AND must be agreed upon by the IPPT. The following data shall be specified as applicable: a) Rise and fall times b) Amplitude and levels c) Phase relationships to other inputs d) Pulse widths e) Overshoot and ringing f) Source impedance characteristics if non-linear g) Jitter h) Frequency and stability i) Bit Patterns or “words” j) Interface circuitry required
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Digital Signal Processing Circuits. Testing requirements for digital circuits shall specify all possible combinations of inputs and resulting outputs. Inputs and output signal parameters shall be explicitly defined. Truth tables alone are not sufficient to specify the input/output characteristics of a given digital circuit, but may be provided as supplementary information. Applicable requirements for digital circuits shall be specified to define the test requirements for D/A and A/D circuits. GO/NO-GO type acceptance criteria shall be acceptable only for those measurements where test effectiveness is not compromised AND must be agreed upon by the IPPTIPT. The following data shall be specified as applicable:
a) Rise and fall times
b) Amplitude and levels
c) Phase relationships to other inputs
d) Pulse widths
e) Overshoot and ringing
f) Source impedance characteristics if non-linear
g) Jitter
h) Frequency and stability
i) Bit Patterns or “words”
j) Interface circuitry required
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Sources: Contract