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Signals. Z 0 = 50 Ω microstrip. Z 0 = 113 Ω twisted pair. 50 Ω. Length 5.1 – 6.1 m. 50 Ω. Existing scheme (above) – NOTE ground at both ends of cable. Voltage/noise externally imposed between these grounds will simply add to signal+threshold input to comparator. Not great.
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Signals Z0= 50 Ω microstrip Z0= 113 Ω twisted pair 50 Ω Length 5.1 – 6.1 m 50 Ω Existing scheme (above) – NOTE ground at both ends of cable. Voltage/noise externally imposed between these grounds will simply add to signal+threshold input to comparator. Not great. Preferred scheme would break this ground connection at FEE boards: Z0= 50 Ω microstrip Z0= 113 Ω twisted pair 50 Ω Length 5.1 – 6.1 m 50 Ω
