ZHCAAP6A June 2020 – July 2021 DS160PR410
表 5-1 中的 DS160PR410 性能矩陣使用 Intel 廣泛接受的 PCI Express 4.0 線性轉(zhuǎn)接驅(qū)動器表征方法，展示了涉及各種前置通道和后置通道組合的器件性能。
| 前置通道 | 后置通道損耗 | ||||
|---|---|---|---|---|---|
| 損耗 | -10dB | -14dB | -18dB | -22dB | -26dB |
| -10dB | EH = 145.93mV EW = 33.08ps TX EQ = P5 (1.9dB) ReDrv EQ 指數(shù) = 8, 9, 10 ReDrv EQ = 12.6dB RX CTLE 指數(shù) = 1 RX DFE： Tap1 = 14.2mV Tap2 = -10.7mV |
EH = 113.98mV EW = 32.84ps TX EQ = P5 (1.9dB) ReDrv EQ 指數(shù) = 8, 9, 10 ReDrv EQ = 12.6dB RX CTLE 指數(shù) = 1 RX DFE： Tap1 = 28.8mV Tap2 = -5.4mV |
EH = 79.8mV EW = 31.38ps TX EQ = P9 (3.5dB) ReDrv EQ 指數(shù) = 11, 12, 13 ReDrv EQ = 15dB RX CTLE 指數(shù) = 1 RX DFE： Tap1 = 27.8mV Tap2 = -3.4mV |
EH = 53.92mV EW = 30.6ps TX EQ = P9 (3.5dB) ReDrv EQ 指數(shù) = 10, 11, 12 ReDrv EQ = 14.4dB RX CTLE 指數(shù) = 1 RX DFE： Tap1 = 30mV Tap2 = 2.9mV |
EH = 33.9mV EW = 25.0ps TX EQ = P9 (3.5dB) ReDrv EQ 指數(shù) = 11, 12, 13 ReDrv EQ = 15dB RX CTLE 指數(shù) = 2 RX DFE： Tap1 = 30mV Tap2 = 5.4mV |
| -14dB | EH = 139.58mV EW = 31.0ps TX EQ = P6 (2.5dB) ReDrv EQ 指數(shù) = 11, 12, 13 ReDrv EQ = 15dB RX CTLE 指數(shù) = 1 RX DFE： Tap1 = 8.8mV Tap2 = -13.2mV |
EH = 103.56mV EW = 30.5ps TX EQ = P6 (2.5dB) ReDrv EQ 指數(shù) = 11, 12, 13 ReDrv EQ = 15dB RX CTLE 指數(shù) = 1 RX DFE： Tap1 = 22.9mV Tap2 = -8.3mV |
EH = 76.4mV EW = 29.33ps TX EQ = P6 (2.5dB) ReDrv EQ 指數(shù) = 13, 14, 15 ReDrv EQ = 16.5dB RX CTLE 指數(shù) = 1 RX DFE： DFE Tap1 = 30mV DFE Tap2 = -5.4mV |
EH = 51.39mV EW = 28.15ps TX EQ = P9 (3.5dB) ReDrv EQ 指數(shù) = 14, 15 ReDrv EQ = 17.8dB RX CTLE 指數(shù) = 1 RX DFE： Tap1 = 30mV Tap2 = -1.5mV |
EH = 31.04mV EW = 24.65ps TX EQ = P9 (3.5dB) ReDrv EQ 指數(shù) = 14, 15 ReDrv EQ = 17.8dB RX CTLE 指數(shù) = 2 RX DFE： Tap1 = 30mV Tap2 = 2mV |
| -18dB | EH = 129.15mV EW = 30.4ps TX EQ = P5 (1.9dB) ReDrv EQ 指數(shù) = 12, 13, 14 ReDrv EQ = 15.9dB RX CTLE 指數(shù) = 1 RX DFE： Tap1 = 25.4mV Tap2 = -11.2mV |
EH = 95.87mV EW = 29.5ps TX EQ = P5 (1.9dB) ReDrv EQ 指數(shù) = 13, 14, 15 ReDrv EQ = 16.5dB RX CTLE 指數(shù) = 1 RX DFE： Tap1 = 30mV Tap2 = -6.3mV |
EH = 67.51mV EW = 27.22ps TX EQ = P9 (3.5dB) ReDrv EQ 指數(shù) = 14, 15 ReDrv EQ = 17.8dB RX CTLE 指數(shù) = 1 RX DFE： Tap1 = 30mV Tap2 = -3.4mV |
EH = 44.48mV EW = 26.09ps TX EQ = P9 (3.5dB) ReDrv EQ 指數(shù) = 13, 14, 15 ReDrv EQ = 16.5dB RX CTLE 指數(shù) = 2 RX DFE： Tap1 = 30mV Tap2 = 2mV |
EH = 22.48mV EW = 20.04ps TX EQ = P6 (2.5dB) ReDrv EQ 指數(shù) = 14, 15 ReDrv EQ = 17.8dB RX CTLE 指數(shù) = 2 RX DFE： Tap1 = 30mV Tap2 = 5.4mV |
| -22dB | EH = 110.76mV EW = 30.9ps TX EQ = P5 (1.9dB) ReDrv EQ 指數(shù) = 13, 14, 15 ReDrv EQ = 16.5dB RX CTLE 指數(shù) = 1 RX DFE Tap1 = 30mV RX DFE Tap2 = -6.3mV |
EH = 74.42mV EW = 29.68ps TX EQ = P6 (2.5dB) ReDrv EQ 指數(shù) = 13, 14, 15 ReDrv EQ = 16.5dB RX CTLE 指數(shù) = 1 RX DFE Tap1 = 30mV RX DFE Tap2 = -0.5mV |
EH = 53.47mV EW = 27.9ps TX EQ = P6 (2.5dB) ReDrv EQ 指數(shù) = 14, 15 ReDrv EQ = 17.8dB RX CTLE 指數(shù) = 1 RX DFE Tap1 = 30mV RX DFE Tap2 = 1.5mV |
EH = 37.65mV EW = 25.74ps TX EQ = P9 (2.5dB) ReDrv EQ 指數(shù) = 14, 15 ReDrv EQ = 17.8dB RX CTLE 指數(shù) = 2 RX DFE Tap1 = 30mV RX DFE Tap2 = 3.4mV |
|
| -26dB | EH = 81.77mV EW = 29.19ps TX EQ = P6 (2.5dB) ReDrv EQ 指數(shù) = 14, 15 ReDrv EQ = 17.8dB RX CTLE 指數(shù) = 1 RX DFE： Tap1 = 30mV Tap2 = -4.4mV |
EH = 57.47mV EW = 27.39ps TX EQ = P9 (3.5dB) ReDrv EQ 指數(shù) = 14, 15 ReDrv EQ = 17.8dB RX CTLE 指數(shù) = 1 RX DFE： Tap1 = 30mV Tap2 = 0.5mV |
EH = 40.59mV EW = 23.81ps TX EQ = P9 (3.5dB) ReDrv EQ 指數(shù) = 14, 15 ReDrv EQ = 17.8dB RX CTLE 指數(shù) = 2 RX DFE： Tap1 = 30mV Tap2 = 2mV |
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| -30dB | EH = 48.66mV EW = 26.84ps TX EQ = P9 (3.5dB) ReDrv EQ 指數(shù) = 14, 15 ReDRV EQ = 17.8dB RX CTLE 指數(shù) = 1 RX DFE： Tap1 = 30mV Tap2 = 1mV |
EH = 33.45mV EW = 23.82ps TX EQ = P9 (3.5dB) ReDrv EQ 指數(shù) = 14, 15 ReDrv EQ = 17.8dB RX CTLE 指數(shù) = 2 RX DFE： Tap1 = 30mV Tap2 = 2.9mV |
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| -32dB | EH = 33.49mV EW = 24.84ps TX EQ = P6 (2.5dB) ReDrv EQ 指數(shù) = 13, 14, 15 ReDrv EQ = 16.5dB RX CTLE 指數(shù) = 3 RX DFE： Tap1 = 30mV Tap2 = 2.9mV |
EH = 23.37mV EW = 21.21ps TX EQ = P9 (3.5dB) ReDrv EQ 指數(shù) = 14, 15 ReDrv EQ = 17.8dB RX CTLE 指數(shù) = 2 RX DFE： Tap1 = 30mV Tap2 = 5.9mV |
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與圖 3-2 中所示設(shè)置等效的測試設(shè)置用于收集性能矩陣中的數(shù)據(jù)。在此測試設(shè)置中，圖形發(fā)生器模擬 PCIe TX，而帶有 PCI-SIG SigTest v4.0.48 軟件的示波器模擬 PCIe RX，兩者一同連接至 DS160PR410 的一個通道，而最壞情況下的串?dāng)_則出現(xiàn)在相鄰?fù)ǖ郎稀Ｔ摂?shù)據(jù)集考慮到了器件電壓、環(huán)境溫度和工藝的不同。
圖 4-1 中的每個條目都顯示了 PCIe 一致性測試碼型的眼高 (EH) 和眼寬 (EW)，該一致性測試碼型使用示波器捕捉，然后由 PCI-SIG 的 SigTest v4.0.48 軟件進行后處理，該軟件根據(jù) PCIe 4.0 Base 規(guī)范對 PCIe 接收器的自適應(yīng) CTLE 和 DFE 功能進行建模。它還顯示了選定的理想 PCIe TX 預(yù)設(shè)（如表 2-2 規(guī)定）、DS160PR410 轉(zhuǎn)接驅(qū)動器 CTLE 設(shè)置或 EQ 指數(shù)（如表 2-1 規(guī)定）以及面向給定前置通道和后置通道損耗的 PCIe RX 均衡（CTLE 和 DFE）設(shè)置。
背景色為綠色的條目顯示了滿足 PCIe 4.0 接收器（EH ≥ 15mV 和 EW ≥ 18.75ps）的最低眼圖張開要求的前置通道和后置通道組合，而橙色條目顯示了不滿足最低眼圖張開要求的前置通道和后置通道組合。背景色為深綠色的條目顯示了產(chǎn)生的總通道損耗為 -40dB 或更多的前置通道和后置通道組合。