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ST2100 датащи(PDF) 20 Page - STMicroelectronics |
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ST2100 датащи(HTML) 20 Page - STMicroelectronics |
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20 / 39 page ![]() Pin descriptions ST2100 20/39 DocID025777 Rev 1 Table 11. PCIe / SATA pin descriptions Signal name Ball Direction Function Pin type PCIE_P1_RXN L22 In High frequency negative RX input signal Analog PCIE_P1_RXP L23 In High frequency positive RX input signal Analog PCIE_XTAL2 N20 Out Feedback of the crystal oscillator Oscillator PCIE_XTAL1 P20 In Input of the crystal oscillator Oscillator PCIE_P1_TXP P22 Out High frequency positive TX output signal Analog PCIE_P1_TXN P23 Out High frequency negative TX output signal Analog PCIE_REFRES R20 Input Reference resistor for the impedance compensation Analog Table 12. Internal AFE pin descriptions Signal name Ball Direction Function Pin type DAC_IDAC U23 Out HF DAC differential positive current “Out” Analog DAC_REXT V22 Out External precision resistor Analog DAC_IDACB V23 Out HF DAC differential negative current “Out” Analog PGA_IN_N AC21 In PGA negative input Analog PGA_IN_P AC22 In PGA positive input Analog Table 13. AC crossing pin descriptions Signal name Ball Direction Function Pin type AC_CROSSING C4 In Mains digital input, zero crossing TTL input buffer, 3.3 V tolerant, with configurable PU/PD and HYST ZC_IN AA20 In Mains analog zero crossing Analog Table 14. External PLI pin description Signal name Ball Direction Function Pin type EXTPLI_TXON C22 Out Line driver enable TTL output buffer, 3.3 V capable, 4 mA |
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