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Stavelet Clocks. 2 The Stavelet Hybrid01234567 BCC6261605958575655 MUX76543210 DEMUX14/1512/1310/118/96/74/52/30/1 Coupling DCAC DCACDCACDC Module0124.

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Presentation on theme: "Stavelet Clocks. 2 The Stavelet Hybrid01234567 BCC6261605958575655 MUX76543210 DEMUX14/1512/1310/118/96/74/52/30/1 Coupling DCAC DCACDCACDC Module0124."— Presentation transcript:

1 Stavelet Clocks

2 2 The Stavelet Hybrid BCC MUX DEMUX14/1512/1310/118/96/74/52/30/1 Coupling DCAC DCACDCACDC Module0124 s/n1934 Stavelet Numerology

3 Probe Points BCO before Blocking C (TL) BCO, BL 3 DCLK, BR BCO after Blocking C (TR)

4 H0: BCO before blocking capacitors H0: BCO after blocking capacitors H0: BCO at hybrid termination resistor H0: DCLK at hybrid termination resistor

5 H1: BCO before blocking capacitors H1: BCO after blocking capacitors H1: BCO at hybrid termination resistorH1: DCLK at hybrid termination resistor

6 H2: BCO before blocking capacitors H2: BCO after blocking capacitors H2: BCO at hybrid termination resistorH2: DCLK at hybrid termination resistor

7 H3: BCO before blocking capacitors H3: BCO after blocking capacitors H3: BCO at hybrid termination resistorH3: DCLK at hybrid termination resistor

8 H4: BCO before blocking capacitors H4: BCO after blocking capacitors H4: BCO at hybrid termination resistorH4: DCLK at hybrid termination resistor

9 H5: BCO before blocking capacitors H5: BCO after blocking capacitors H5: BCO at hybrid termination resistorH5: DCLK at hybrid termination resistor

10 H6: BCO before blocking capacitors H6: BCO after blocking capacitors H6: BCO at hybrid termination resistorH6: DCLK at hybrid termination resistor

11 H7: BCO before blocking capacitors H7: BCO after blocking capacitors H7: BCO at hybrid termination resistorH7: DCLK at hybrid termination resistor

12 Data Summaries, Notes and Suggestions Duty Before C Amp Before C Duty After C Amp After C Duty at Term Amp at Term 80 DCLK period 1 80 DCLK period 2 80 DCLK period 3 80 DCLK period 4 H H H H H H H H %mV% % nS Notes: 1)System clock (BCO) is 42 MHz 2)Periods 1 and 2 are almost the same (except for H5) 3)Period 3 is consistently short: effect of 42MHz clock? 4)Period 4 is always 8.0 nS 5)Period data read from graphs, error 0.2nS Suggestions: 1)Change to 40MHz clock 2)Investigate H5 and one other in more detail 3)Seek to determine firing point at BBC input 4)Adjust terminations


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