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The M8049A ISI channel boards can be used to emulate channel loss in receiver test setups. The boards are designed to be used to emulate channel loss for data rates of 32 Gb/s and higher. A choice of 21 PC board traces with different lengths can be inserted into the signal path. The trace lengths range from 0.8 inch (20.3 mm) to 22.3 inch (566.4 mm). By cascading the traces within one board or with another board a wide range of channels can be emulated with very fine resolution of insertion loss steps. With their small size the ISI channel boards can be located closely to the device under test. The cascadable ISI channels are complemented by the Keysight Technologies, Inc. compliance channels for SATA, DisplayPort, PCI Express.
Key Features |
Emulate a wide range of channel loss with ISI (Inter Symbol Interference) traces with fine resolution |
Three ISI boards with 5 short (1.4’’ to 5.5’’), 9 medium (0.8’’ to 7.95’’) and 7 long traces (9.05’’ to 22.25’’), traces can be cascaded |
Rogers 4350B and Megtron 6 PC board material with known S21 parameters |
Differential channels |
Suitable for symbol rates of 32 Gbaud and higher |
Small size |
Specifications | |||
Keysight M8049A-002 | |||
Features | Parameters | ||
M8049A-001 | M8049A-002 | M8049A-003 | |
Trace Lengths | 1.4" (36mm) | 0.8” (20.3 mm) | 9.05” (229.9 mm) |
2.4” (61.8 mm) | 1.35” (34.3 mm) | 11.25” (285.8 mm) | |
3.4” (87.6 mm) | 1.9” (48.3 mm) | 13.45” (341.6 mm) | |
4.5” (113.4 mm) | 2.45” (62.2 mm) | 15.65” (397.5 mm) | |
5.5” (139.2 mm) | 3.55” (90.2 mm) | 17.85” (453.4 mm) | |
4.65” (118.1 mm) | 20.05” (509.3 mm) | ||
5.75” (146.1 mm) | 22.25” (565.2 mm) | ||
6.85” (174.0 mm) | |||
7.95” (201.9 mm) | |||
PC Board Material | Rogers 4350B | Megtron 6 | Megtron 6 |
Insertion Loss | Typical values see figure 2, 3, 4 (excludes cables) | ||
Insertion Loss For M8046A802 Cable | |||
Typical | < 2 dB at 16 GHZ | < 2 dB at 16 GHZ | < 2 dB at 16 GHZ |
Typical | < 3 dB at 32 GHZ | < 3 dB at 32 GHZ | < 3 dB at 32 GHZ |
Return Loss | |||
Typical | Better than -12 dB at up to 16 Ghz | Better than -12 dB at up to 16 Ghz | Better than -12 dB at up to 16 Ghz |
Typical | Better than -10 dB at up to 24 Ghz | Better than -10 dB at up to 24 Ghz | Better than -10 dB at up to 24 Ghz |
Intra-Pair Skew | < 3 ps Typical | < 3 ps Typical | < 3 ps Typical |
Input Impedance | 100 Ω differential, 50 Ω single ended, ± 10% typical | 100 Ω differential, 50 Ω single ended, ± 10% typical | 100 Ω differential, 50 Ω single ended, ± 10% typical |
Max Input Voltage Levels | ± 5 V | ± 5 V | ± 5 V |
Interface | Differential or Single-ended | Differential or Single-ended | Differential or Single-ended |
Connectors | 2.4 mm, female Soldered | 2.4 mm, female, removable connectors | 2.4 mm, female, removable connectors |
Specifications | |||||||||||
Keysight M8049A-002 | |||||||||||
Table 2 | |||||||||||
Typical ISI jitter values p-p for all M8049A traces at PRBS 215-1 and selected symbol rates | |||||||||||
Data | 10 Gb/s | - | 16 Gb/s | - | 26.5625 Gb/s | - | 32 Gb/s | - | 53.125 Gb/s | - | |
Corresponding UI (unit interval | 100 ps | - | 62.5 ps | - | 37.647 ps | - | 31.25 ps | - | 18.824 ps | - | |
Trace Lengh | ps | UI | ps | UI | ps | UI | ps | UI | ps | UI | |
M8049A-001 | 1.4" (36mm) | - | - | 1.43 | 0.023 | 1.7 | 0.045 | 3.3 | 0.107 | 3.4 | 0.182 |
2.4” (61.8 mm) | - | - | 2.13 | 0.034 | 3.7 | 0.098 | 4.3 | 0.139 | 4.5 | 0.237 | |
3.4” (87.6 mm) | - | < 0.05 | 2.68 | 0.043 | 5.4 | 0.142 | 5.4 | 0.174 | 6 | 0.321 | |
4.5” (113.4 mm) | - | - | 3.4 | 0.054 | 6.3 | 0.167 | 5.9 | 0.189 | 8.3 | 0.442 | |
5.5” (139.2 mm) | - | - | 3.68 | 0.059 | 6.7 | 0.177 | 6.2 | 0.199 | 10.7 | 0.568 | |
- | - | - | - | - | - | - | - | - | - | ||
Trace Lengh | ps | UI | ps | UI | ps | UI | ps | UI | ps | UI | |
M8049A-002 | 0.8” (20.3 mm) | - | - | - | - | 3.9 | 0.103 | 4.2 | 0.136 | 4.6 | 0.246 |
1.35” (34.3 mm) | - | - | - | - | 4.1 | 0.109 | 4.3 | 0.138 | 4.8 | 0.258 | |
1.9” (48.3 mm) | - | - | - | - | 4.3 | 0.115 | 4.6 | 0.146 | 5.2 | 0.276 | |
2.45” (62.2 mm) | - | - | - | - | 4.8 | 0.128 | 5 | 0.16 | 5.3 | 0.279 | |
3.55” (90.2 mm) | - | < 0.05 | 3.4 | 0.054 | 5.3 | 0.14 | 5.5 | 0.177 | 6.1 | 0.322 | |
4.65” (118.1 mm) | - | - | 4.4 | 0.065 | 6 | 0.16 | 6.7 | 0.214 | 7.2 | 0.381 | |
5.75” (146.1 mm) | - | - | 4.9 | 0.078 | 7.2 | 0.191 | 8.1 | 0.259 | - | - | |
6.85” (174.0 mm) | - | - | 5.5 | 0.089 | 8.3 | 0.22 | 9.4 | 0.301 | - | - | |
7.95” (201.9 mm) | 5.5 | 0.055 | 6.7 | 0.107 | 9.9 | 0.263 | 11.4 | 0.364 | - | - | |
- | - | - | - | - | - | - | - | - | - | ||
Trace Lengh | ps | UI | ps | UI | ps | UI | ps | UI | ps | UI | |
M8049A-003 | 9.05” (229.9 mm) | 6.2 | 0.062 | 8 | 0.128 | 11.1 | 0.294 | 13.7 | 0.438 | - | - |
11.25” (285.8 mm) | 8.4 | 0.084 | 10.4 | 0.166 | 15 | 0.399 | - | - | - | - | |
13.45” (341.6 mm) | 11.2 | 0.112 | 13.8 | 0.221 | 18.9 | 0.503 | - | - | - | - | |
15.65” (397.5 mm) | 14.4 | 0.144 | 18.1 | 0.289 | - | - | - | - | - | - | |
17.85” (453.4 mm) | 18.2 | 0.182 | 22.5 | 0.359 | - | - | - | - | - | - | |
20.05” (509.3 mm) | 22.3 | 0.223 | 28.2 | 0.451 | - | - | - | - | - | - | |
22.25” (565.2 mm) | 26.4 | 0.264 | 34.2 | 0.547 | - | - | - | - | - | - |