Interface
Table 5.1 Physical Layer Electrical Requirements (2/3)
b) Transmitter Specifications
| Units | Nom | Min | Max | Comments |
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ZdiffTX, | Ohm |
| 85 | 115 |
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TX Pair Differential |
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Impedance |
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Ohm |
| 40 |
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TX |
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Impedance |
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c) Transmitted Signal Requirements |
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| Units | Nom | Min | Max | Comments |
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| Differential |
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| nominal measured |
VdiffTX, |
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| at Serial ATA |
mVppd | 500 | 400 | 600 | connector on | |
TX Differential | transmit side | ||||
Output Voltage |
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| differential@seria |
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| l ATA connector) |
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| Rise: |
ps |
| 0.15 | 0.41 | transmitter | |
TX Rise/Fall Time | (UI) |
| Fall: | ||
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| transmitter |
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tskewTX, | ps |
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| 20 |
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TX Differential Skew |
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TJ at Connector, | UI |
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| 0.355 |
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DJ at Connector, | UI |
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| 0.175 |
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TJ at Connector, | UI |
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| 0.47 |
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DJ at Connector, | UI |
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| 0.22 |
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