Page History

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Products Affected

This change affects all Trenz Electronic TEBF0808 Carrier: TEBF0808-04A*.

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Impact: None. Increased current output capability. Minor changes in electrical characteristics.

#4 Changed

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DCDCs 171050601 (U22, U26, U29) to MPM3650CGQW-Z and adapted power circuit.

Type: Schematic Change

Reason: BOM Optimization.

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Reason: Changed PCIe clock to HCSL.

Impact: None.

#12 Changed AC coupling (C93/C94 [REV04A]) to DC coupling (R263/R264

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[REV05]) for differential clock signals "CLK0_N" and "CLK0_P". Removed capacitor (C94).

Type: Schematic Change

Reason: Changed PCIe clock to HCSL.

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Impact: None. Change voltage level between CPLD voltage rail "3V3SB" and ATX connector voltage rail "5VSB" for signal "PSON". Change logic level for signal "PSON". CPLD firmware reflects it but customer firmware needs to be checked/adapted by customer.

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#19 Connected all shield signals for connector (J7) together to net "FGND". Removed shield signals (J7) from net "F2GND". Removed capacitor (C261).

Type: Schematic Change

Reason: Harmonize with TEBF0818 series.

Impact: None.

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#20 Renamed shield net to FGND2 for connector (J13) and changed shield components from 0 Ohm resistor (R43, R44 [REV04A]) to 1 MOhm resistor (R143 [REV05]) and 100 pF capacitor (C149 [REV05]). Removed resistor (R44 [REV04A]).

Type: Schematic Change

Reason: Harmonize with TEBF0818 series.

Impact: None.

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#21 Inserted FGND3 with resistor (R43 [REV05]) and capacitor (C93 [REV05]) for SFP+ connector (J14) shield.

Type: Schematic Change

Reason: Improve ESD protection.

Impact: None.

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#22 Changed Fan F455B-05LD (M1) to Fan MF40060V2-1000U-A99 (MP1) and updated according mechanical screws, nuts, crimp contacts, and housing (JX1).

Type: BOM change

Reason:  EOL of Component.

Impact: Specified airflow of fan increases from 0.028 m³/min to 0.155 m³/min.   Specified acoustic noise increases from 20 dB(A) to 25.3 dB(A). Increased temperature range from (-10 °C - +60 °C) to (-10 °C - +70 °C).

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#23 Added assembly option (default: not fitted) for cooling solution with fan controller LM96163CISD/NOPB (U54), temperature sense MMBT3904 (T12), and AND Gate (U55).

Type: Schematic Change

Reason: Harmonize with TEBF0818 series.

Impact: None.

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#24 Connected fan controller LM96163CISD/NOPB (U54) to I2C bus (signals "SC_SCL" and "SC_SDA").

Type: Schematic Change

Reason:Fan controller handling.

Impact: None. Assembled fan controller uses I2C address 0x4C.

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#25 Changed pin header (J19) from two pins to four pins.

Type: Schematic Change

Reason: Harmonize with TEBF0818 series.

Impact: None.

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#26 Used resistor (R164) as pull-up resistor for signal "POK_1V8".

Type: Schematic Change

Reason: Use external pull-up resistor.

Impact: None.

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#27 Added debounce circuit (R235, C211) for button (S1) and (R236, C213) for button (S2).

Type: Schematic Change

Reason: Improve button behaviour.

Impact: None.

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#28 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.

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#29 Added pull-up resistor (R293) for signal "I2C_RST".

Type: Schematic Change

Reason: Use external pull-up resistor.

Impact: None.

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#30 Added termination resistor assembly option (R134) for differential clock (signals "CLK0_N" and "CLK0_P").

Type: Schematic Change

Reason: Harmonize with TEBF0818 series.

Impact: None.

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#31 Changed LED (D8, D10) from 150060VS75000 to 19-213/G6C-BM1N2/DT.

Type: Schematic Change

Reason:BOM Optimization.

Impact: None.

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#32 Changed 1 µH power inductor (L1) from 1.7 A, 20 %, 55 mOhm to 0.7 A, 5 %, 620 mOhm.

Type: Schematic Change

Reason: Harmonize with TEBF0818 series.

Impact: None.

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#33 Changed power inductor (L2, L6, L13, L14) from 1 µH, 1.7 A, 55 mOhm to 3.3 µH, 1.5 A, 162 mOhm.

Type: Schematic Change

Reason: Harmonize with TEBF0818 series.

Impact: None.

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#34 Changed power inductor (L8, L9, L11, L12) from 1 µH, 1.7 A, 55 mOhm to 4.7 µH, 1.5 A, 84 mOhm.

Type: Schematic Change

Reason: Follow SFP+ recommendation.

Impact: None.

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#35 Changed ferrid bead (L16, L17) from BKP0603HS121-T to MPZ0603S121HT000.

Type: BOM Change

Reason:EOL of component.

Impact: None.

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#36 Changed 33 nF capacitor (C192) from 50 V, 0603 to 25 V, 0402.

Type: Schematic Change

Reason: BOM Optimization.

Impact: None.

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#37 Changed capacitor (C121 ... C124, C179, C182, C185, C221 ... C223) from 100 nF, 6.3 V, X5R to 10 nF, 10 V, X7R.

Type: Schematic Change

Reason: Follow AMD recommendation.

Impact: None.

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#38 Changed capacitor (C197, C200, C202, C203) from 100 nF, 6.3 V, X5R to 10 nF, 10 V, X7R.

Type: Schematic Change

Reason: Follow SATA recommendation.

Impact: None.

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#39 Changed capacitor (C69, C70) from 100 nF, 6.3 V, 0201 to 220 nF, 50 V, 0402.

Type: Schematic Change

Reason: Follow PCIe recommendation.

Impact: None.

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#40 Changed 220 nF capacitor (C170) from 16 V, X7R to 50 V, X5R.

Type: Schematic Change

Reason: BOM Optimization.

Impact: None.

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#41 Changed capacitor (C47, C50, C52, C57, C60, C62) from 470 nF, 6.3 V, 0402 to 100 nF, 10 V, 0201.

Type: Schematic Change

Reason: Follow SFP+ recommendation.

Impact: None.

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#42 Changed 470 nF capacitor (C220) from 0201 to 0402.

Type: Schematic Change

Reason: BOM Optimization.

Impact: None.

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#43 Changed capacitor (C39, C82, C207) from 4.7 µF, 6.3 V to 10 µF, 10 V.

Type: Schematic Change

Reason: Harmonize with TEBF0818 series.

Impact: None.

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#44 Changed capacitor (C49, C51, C59, C61) from 10 µF, 6.3 V, 0603 to 22 µF, 25 V, 0805.

Type: Schematic Change

Reason: Follow SFP+ recommendation.

Impact: None.

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#45 Changed capacitor (C48, C58) from 10 µF, 6.3 V, 0603 to 100 nF, 10 V, 0201.

Type: Schematic Change

Reason: Follow SFP+ recommendation.

Impact: None.

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#46 Changed 10 µF capacitor (C11, C12, C13, C15, C18, C20, C34, C63, C136, C204, C239) from 6.3 V to 10 V.

Type: Schematic Change

Reason: Harmonize with TEBF0818 series.

Impact: None.

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#47 Changed capacitor (C42, C67) from 47 µF, 6.3 V, 1206 to 22 µF, 25 V, 0805.

Type: Schematic Change

Reason: Harmonize with TEBF0818 series.

Impact: None.

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#48 Changed capacitor (C72, C73) from 100 µF, 6.3 V, 20 % to 22 µF, 25 V, 10 %.

Type: Schematic Change

Reason: Increased voltage rating.

Impact: None.

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#49 Changed 33 Ohm resistor (R7, R13, R19, R68, R103, R112, R128, R151, R168, R189) from 63 mW, 0402 to 50 mW, 0201.

Type: Schematic Change

Reason: Improve signal integrity.

Impact: None.

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#50 Changed resistor (R101, R102, R104, R105) from 249 Ohm to 240 Ohm.

Type: Schematic Change

Reason: BOM Optimization.

Impact: None.

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#51 Changed resistor (R40) from 4.99 kOhm to 0 Ohm.

Type: Schematic Change

Reason: Set HDMI Hot Plug level properly.

Impact: None.

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#52 Changed resistor (R27, R196) from 4.99 kOhm to 100 Ohm.

Type: Schematic Change

Reason: Harmonize with TEBF0818 series.

Impact: None.

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#53 Changed resistor (R14) from 4.99

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kOhm to 2 kOhm.

Type: BOM Change

Reason: Harmonize with TEBF0818 series.

Impact: None.

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#54 Changed pull-up resistor (R18, R21, R86, R87, R113, R114, R115, R121 ... R123) from 4.99 kOhm to 7.5 kOhm.

Type: Schematic Change

Reason: Harmonize with TEBF0818 series.

Impact: None.

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#55 Changed resistor (R41) from 4.99 kOhm to 200 kOhm.

Type: Schematic Change

Reason: Set HDMI Hot Plug level properly.

Impact: None.

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#56 Changed resistor (R65) from 8.06 kOhm to 1 kOhm.

Type: Schematic Change

Reason: Enable OTG capability.

Impact: None.

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#57 Added ferrid bead (L25) for fan power supply.

Type: Schematic Change

Reason: Improve power quality.

Impact: None.

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#58 Added additional decoupling capacitor (C244, C254, C262, C263, C281 ... C287).

Type: Schematic Change

Reason: Improve power supply.

Impact: None.

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#59 Added termination resistor (R277 ... R292).

Type: Schematic Change

Reason: Improve signal integrity for FireFly connector (J6, J21).

Impact: None.

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#60 Set LDO TPS79901DRV (U47) and LDO related components, ferrid bead (L20), capacitor (C127)

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and resistor (R181)

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to not fitted.

Type: Schematic Change

Reason:  BOM Optimization.

Impact: None.

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#61 Set capacitor (C16, C17) to not fitted.

Type: Schematic Change

Reason: Harmonize with TEBF0818 series.

Impact: None.

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#62 Set resistor (R98, R198)

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to not fitted.

Type: Schematic Change

Reason: Harmonize with TEBF0818 series.

Impact: None.

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#63 Changed net name (IN2_P → IN2_CLK_P and IN2_N → IN2_CLK_N).

Type: Schematic Change

Reason: Harmonize with TEBF0818 series.

Impact: None.

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#64 Changed net name from "5VSBIN" to "5VSB".

Type: Schematic Change

Reason: Harmonize with TEBF0818 series.

Impact: None.

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#65 Changed net name from "3.3V_MOD" to "VCC_MOD".

Type: Schematic Change

Reason: Harmonize with TEBF0818 series.

Impact: None.

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#66 Added testpoint (TP14, TP16, TP17, TP20 ... TP25).

Type: Schematic Change

Reason: Signal monitoring improvement.

Impact: None.

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#67 Changed impedance controlled routing for differential PCIe signals (TX/RX) to 90 Ohm differential impedance.

Type: PCB Change

Reason: Follow PCIe recommendation.

Impact: None.

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#68 Routed signals which are marked in schematics as "D100" with 100 Ohm differential impedance.

Type: PCB Change

Reason: Improve signal integrity.

Impact: None.

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#69 Changed CAN bus signal net names (CAN_H → CAN_P, CAN_L → CAN_N) to route them with 120 Ohm differential impedance.

Type: PCB Change

Reason: Improve signal integrity.

Impact: None.

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#70 Updated PCB rules, PCB layout, and PCB layerstack.

Type: PCB Change

Reason: Improve board quality.

Impact: None.

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#71 Added module orientation mark in silkscreen top side.

Type: PCB change

Reason: Improve module insertion process.

Impact: None.

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#72 Added UKCA logo.

Type: PCB Change

Reason: Required for export to UK.

Impact: None.

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#73 Changed fiducials to standard fiducial type.

Type: Schematic Change

Reason: Use standard fiducials.

Impact: None.

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#74 Updated schematic sheets from template.

Type: Documentation Update

Reason: Documentation improvement.

Impact: None.

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#75 Added legal notices, power overview, I2C address table, and power voltage range table. Updated block diagram and revision history. Updated page count and order. 

Type: Documentation Update

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Production Shipment Schedule

From January 2025, after old stock is goneWith immediate effect this change takes place. If the new revision is not suitable for your application and still the former revision of the board is needed, please contact us.

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