List of Figures
Methodology for Jitter and Signal Quality Specification-MJSQ TR REV 12.2, January 30, 2004
Page xiv
Figure A.2 - FFT of original RPAT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138
Figure A.3 - FFT of compliant RPAT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138
Figure B.1 - Ideal test configuration architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147
Figure B.2 - Placement of adapters in test configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149
Figure B.3 - Source/sink interface adapter matching network . . . . . . . . . . . . . . . . . . . . . . . . . 150
Figure B.4 - Balanced-balanced source-sink adapter (alternative 1) . . . . . . . . . . . . . . . . . . . . . 152
Figure B.5 - Half of balanced-balanced source-sink adapter (alternative 2) . . . . . . . . . . . . . . . 153
Figure B.6 - Tap adapter matching network (balanced-balanced) . . . . . . . . . . . . . . . . . . . . . . . 154
Figure B.7 - Half of balanced-balanced tap adapter (alternative 2) . . . . . . . . . . . . . . . . . . . . . . 155
Figure B.8 - Balanced-unbalanced tap adapter configuration . . . . . . . . . . . . . . . . . . . . . . . . . . 157
Figure B.9 - Extracting a balanced trigger for a single-ended instrument . . . . . . . . . . . . . . . . . 158
Figure B.10 - Source/sink interface adapter matching network for unbal - unbal copper . . . . . 159
Figure B.11 - Unbalanced-unbalanced copper tap adapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160
Figure B.12 - Basic optical system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161
Figure B.13 - Source interface adapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162
Figure B.14 - Sink interface adapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162
Figure B.15 - Optical tap adapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163
Figure B.16 - Source/sink adapter - schematic plus assembly view . . . . . . . . . . . . . . . . . . . . . 165
Figure C.1 - Tolerance mask asymptotes for 1062,5 MBaud . . . . . . . . . . . . . . . . . . . . . . . . . . 172
Figure C.2 - Comparison of low frequency clock jitter and tolerance mask . . . . . . . . . . . . . . . 173
Figure D.1 - Representative spectrum analyzer plot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175
Figure D.2 - Frequency domain test setup (spectrum analyzer) . . . . . . . . . . . . . . . . . . . . . . . . 175
Figure E.1 - Examples of jitter distributions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 180
Figure F.1 - Equipment setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 183
Figure F.2 - Output of FC test board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185
Figure F.3 - Clock to data transfer characteristic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186
Figure F.4 - Distribution of the rising edges with no cross talk . . . . . . . . . . . . . . . . . . . . . . . . 187
Figure F.5 - Output of FC test board with 50 mV crosstalk added . . . . . . . . . . . . . . . . . . . . . . 188
Figure F.6 - Jitter distributions for the rising and falling edges . . . . . . . . . . . . . . . . . . . . . . . . 189
Figure F.7 - Same as figure F.4 with 50 mV crosstalk added . . . . . . . . . . . . . . . . . . . . . . . . . . 190
Figure F.8 - Output of FC test board with 100 mV crosstalk added . . . . . . . . . . . . . . . . . . . . . 191
Figure F.9 - Jitter distributions with 100 mV crosstalk . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 192
Figure F.10 - Same as figure F.4 with 100 mV crosstalk added . . . . . . . . . . . . . . . . . . . . . . . . 193
Figure F.11 - Base line plot with zero crosstalk added . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 194
Figure F.12 - Overlay of results with and without crosstalk added . . . . . . . . . . . . . . . . . . . . . . 195
Figure F.13 - Correlation between CDF’s from three methods . . . . . . . . . . . . . . . . . . . . . . . . . 196
Figure G.1 - One end of a duplex link with added connector . . . . . . . . . . . . . . . . . . . . . . . . . . 199
Figure G.2 - Signal budgeting options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200
Figure G.3 - Compliance interconnect mask to accommodate the Alpha T to Gamma T loss . 201
Figure G.4 - Adjusting the Alpha R mask to accommodate the Gamma R to Alpha R loss . . . 202
Figure H.1 – 32000 bit data pattern results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204
Figure H.2 – 32000 bit data pattern results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 205
Figure H.3 – 32000 bit data pattern results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 205
Figure H.4 – 32000 bit data pattern results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206
Figure H.5 – 10,000,000 bit data pattern results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206
Figure H.6 – 10,000,000 bit data pattern results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207