Page History
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| Company | Trenz Electronic GmbH |
|---|---|
| PCN Number | PCN-20240302 |
| Title | TE0725-03 to TE0725-04 Hardware Revision Change |
| Subject | Hardware Revision Change |
| Issue Date | 2024-0306-0106 |
Products Affected
This change affects all Trenz Electronic TE0725 SoMs: TE0725-03*.
Affected Product | Replacement |
|---|---|
| TE0725-03-15-1C | TE0725-04-21C-1-A |
| TE0725-03-35-2C | TE0725-04-42C-1-A |
| TE0725-03-100-2C | TE0725-04-72C-1-A |
| TE0725-03-100-2CF | TE0725-04-72C-1-F |
| TE0725-03-100-2I9 | TE0725-04-72I-1-B |
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Changes
#1 Changed DCDC EN5311QI (U11) to
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MPM3834CGPA (U5) and adapted power circuit.
Type: Schematic Change
Reason: EOL of Component.
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Impact: None. Increased current output capability. Minor changes in electrical characteristics.
#3 Changed power sequencing.
Type: Schematic Change
Reason: Improve power sequencing.
Impact: Check that the new power-up sequence fits your requirements. Voltage rail 3.3V delivered by external power supply via connectors enables 1V voltage rail (DCDC U10). 1V DCDC (U10) enables 1.8V voltage rail (DCDC U5) via signal PG_1V. 1.8V DCDC (U5) enables 2.5V voltage rail (DCDC U6) via signal PG_1.8V.
#4 Changed HyperRAM (U4) from S27KS0641DPBHI000 to
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IS66WVH8M8FALL-166B1LI.
Type: BOM change
Reason: HyperRAM improvement EOL of component.
Impact:None
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Custom design needs to be updated by customer.
#5 Changed clock (U3) from SiT8008AI-73-XXS-100.000000E to SiT8008BI-73-XXS-100.000000E.
Type: Schematic Change
Reason: Use new clock revision.
Impact: None.
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#6 Added jumper (J3) option (default: not fitted) and resistor (R36) to enable JTAG only boot mode.
Type: Schematic Change
Reason: QSPI programming problems with newer Vivado versions.
Impact: None. JTAG boot mode directly accessible. Fix QSPI programming problems with newer Vivado versions according to AR#00002 - QSPI Programming issues.
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#7 Added diode (D1) between signals "INIT" and "PROG_B".
Type: Schematic Change
Reason: Keep FPGA in reset while signal "PROG_B" is low during initial power-up.
Impact: None.
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#8 Added diode (D4) between voltage monitor (U9) pin 3 net "nRST" and voltage rail 3.3V.
Type: Schematic Change
Reason: Protect manual reset pin.
Impact: None.
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#9 Added pull-up resistor (R37) for signal "H1_A3".
Type: Schematic Change
Reason: Setup CS# signal externally.
Impact: None.
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#10 Set resistor (R13) to not fitted.
Type: BOM Change
Reason: BOM Optimization Resistor is not needed due to new diode.
Impact: None.
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#11 Changed inductor (L1, L2, L3, L4, L6) from BKP0603HS121-T to MPZ0603S121HT000.
Type: BOM Change
Reason:EOL of component.
Impact: None.
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#12 Added testpoint (TP1, ..., TP10).
Type: Schematic Change
Reason: Voltage and system monitoring improvement.
Impact: None.
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#13 Removed track-it traceability pad S/N.
Type: Schematic Change
Reason: EOL of Component.
Impact: None.
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#14 Changed fiducials to standard fiducial type.
Type: Schematic Change
Reason: Use standard fiducials.
Impact: None.
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#15 Updated components from library.
Type: Schematic Change
Reason: Use latest component data.
Impact: None.
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#16 Added legal notices, system and power overview. Updated revision history. Updated page count and order.
Type: Documentation Update
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Production Shipment Schedule
From October December 2024, after old stock is gone. 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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