Page History
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Impact: Power supply option 1.25 V removed. Minor changes in electrical characteristics. (???)
#1 Changed DCDC 171050601 (U18) to MPM3683GMN-10 and adapted power circuit.
Type: Schematic Change
Reason: BOM Optimization.
Impact: (???)
#2 Changed DCDC 171050601 (U22, U26, U29) to MPM3650CGQW-Z and adapted power circuit.
Type: Schematic Change
Reason: BOM Optimization.
Impact: (???)
#2 Changed DCDC EN6347QI #2 Changed DCDC EN6347QI (U19) to MPM3650CGQW-Z and adapted power circuit.
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Impact: None. Increased current output capability. Minor changes in electrical characteristics. (???)
#2 Changed battery power supply circuit (U37, D16).
Type: Schematic Change
Reason: Change battery voltage supply from 1.8 V to 1.2 V to follow AMD recommendation.
Impact: (???)
#2 Changed diode (D16) from SDMG0340LC-7-F to BAS70-05W.
Type: Schematic Change
Reason: (???)
Impact: (???)
#3 Changed load switch TPS27082LDDCR (Q1, Q2, Q3) to MP5077GG-Z and adapted circuit.
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Reason: Follow PCIe recommendation.
Impact: None.
#3 Routed in schematic with "D100" marked signals with 100 Ohm differential impedance.
Type: PCB Change
Reason: Improve signal integrity.
Impact: None.
#3 Changed CAN bus signals net names (
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CAN_H → CAN_P
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,
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CAN_L → CAN_N) to route them with 120 Ohm differential impedance.
Type: PCB Change
Reason: Improve signal integrity.
Impact: None.
#3 Reordered MGT signal connection at FireFly connector (J6, J21).
Type: Schematic Change
Reason: Improve FireFly handling and harmonize with TEBF0818 series.
Impact: If FireFly is used custom firmware needs to be adapted by customer.
#3 Renamed following signals (IN2_P → IN2_CLK_P and IN2_N → IN2_CLK_N).
Type: Schematic Change
Reason: Harmonize with TEBF0818 series.
Impact: None.
#3 Inserted level shifter circuit (T7, T8) between CPLD (U39) (signal "PWROK") and ATX connector (J20) (signal "PWR_OK").
Type: Schematic Change
Reason: Change voltage level between CPLD voltage rail "3V3SB" and ATX connector voltage rail "5VSB".
Impact: None.
#3 Inserted MOSFET (T9) circuit for level shifting and logic level inverting.
Type: Schematic Change
Reason: Change voltage level between CPLD voltage rail "3V3SB" and ATX connector voltage rail "5VSB" and harmonize with TEBF0818 series.
Impact: None. CPLD firmware reflects it but customer firmware needs to be checked/adapted by customer.
#3 Connected all shield signals for connector (J7) together to net "FGND".
Type: Schematic Change
Reason: Harmonize with TEBF0818 series.
Impact: None.
#3 Renamed shield net to FGND2 for connector (J13) and changed shield components from 0 Ohm resistor (R43, R44) to 1 MOhm resistor (R143) and 100 pF capacitor (C149).
Type: Schematic Change
Reason: Harmonize with TEBF0818 series. (???)
Impact: None.
#3 Inserted FGND3 with resistor (R43) and capacitor (C93) for SFP+ connector (J14) shield.
Type: Schematic Change
Reason: Improve ESD protection.
Impact: None.
#3 Set capacitor (C16, C17) to not fitted.
Type: Schematic Change
Reason: Harmonize with TEBF0818 series
Bank 64 B64_L{1...24}_P/N signals,
Bank 65 B65_L{1...13, 15...24}_P/N signals,
Bank 66 B48_L{1...24}_P/N signals, MGT Bank 128, MGT CLK0 Bank 228, MGT Bank 228,
MGT CLK0 Bank 229, MGT Bank 229,
MGT CLK0 Bank 230, MGT Bank 230, MGT CLK0/1 Bank 505, CLK0,7,8, Display Port (TX, AUX, TX_AUX,
) with 100 Ohm differential impedance.
Type: PCB Change
Reason: Follow PCIe recommendation.
Impact: None.
#1 Change eMMC (U2) from MTFC16GJVEC-2M WT to SDINBDG4-8G-XI2.
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Reason: Improve power quality.
Impact: None.
#22 Protected input power circuit with TVS diode SMBJ20CA (D11, D19).
Type: Schematic Change
Reason: Improve power supply input protection.
Impact: None.
#22 Changed capacitor (C39, C82, C207) from 4.7 µF, 6.3 V to 10 µF, 10 V.
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Reason: Follow SFP+ recommendation.
Impact: None.
#22 Added decoupling capacitor (C281, C282, C283, C284, C285, C286, C287).
Type: Schematic Change
Reason: Improve power supply.
Impact: None.
#22 Added pull-up resistor (R293) for signal "I2C_RST".
Type: Schematic Change
Reason: Use external pull-up resistor.
Impact: None.
#16 Added additional decoupling capacitor (C263).
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Reason: Improve power supply.
Impact: None.
#24 Changed resistor (R27, R196) from 4.99 kOhm to 100 Ohm.
Type: Schematic Change
Reason: BOM optimization.
Impact: None.
#24 Set resistor (R98, R198) as not fitted.
Type: Schematic Change
Reason: Harmonize with TEBF0818 series.
Impact: None.
#24 Added debounce circuit (R235, R236, C211, C213) for button (S1, S2).
Type: Schematic Change
Reason: Improve button behaviour.
Impact: None.
#24 Added pull-up resistor (R228 ... R234) for signal ("PRSNT1", "PERST", "WAKE", "PRSNT2", "PRSNT3", "PRSNT4", "PRSNT5").
Type: Schematic Change
Reason: Harmonize with TEBF0818 series.
Impact: None.
#24 Changed net name from "3.3V_MOD" to "VCC_MOD".
Type: Schematic Change
Reason: Harmonize with TEBF0818 series.
Impact: None.
#24 Changed net name from "5VSBIN" to "5VSB".
Type: Schematic Change
Reason: Harmonize with TEBF0818 series.
Impact: None.
#33 Added legal notices, system and power overview. Updated revision history. Updated page count and order.
Type: Documentation Update
Reason: Documentation improvement.
Impact: None.
#22 Updated PCB with rules, signal layout, layerstack, polygons.
Type: Schematic Change
Reason: Improve routing.
Impact: None.
28 Added UKCA logo.
Type: PCB Change
Reason: Required for export to UK.
Impact: None.
#33 Added I2C address table and Power Voltage Range table.
Type: Documentation Update
Reason: Documentation improvement.
Impact: None.
#33 Updated schematic sheet from template.
Type: Documentation Update
Reason: Documentation improvement.
Impact: None.
#33 Updated block diagram.
Type: Documentation Update
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