| Company | Trenz Electronic GmbH |
|---|---|
| PCN Number | PCN-20230619 |
| Title | TE0726-03 to TE0726-04 Hardware Revision Change |
| Subject | Hardware Revision Change |
| Issue Date | 2023-07-01 |
Products Affected
This change affects all Trenz Electronic TEXXXX SoMs: TEXXXX-XX*.
Affected Product | Replacement |
|---|---|
| TE | TE |
Changes
#1 Changed DCDC EN5311QI (U16, U17, U19, U20) to MPM3834CGPA and adapted power circuit.
Type: Schematic Change
Reason: EOL of Component.
Impact: None. Increased current output capability. Minor changes in electrical characteristics.
#2 Added MIC bias power circuit (L12, C114, R151).
Type: Schematic Change
Reason: Increase usable microphones.
Impact: None. More microphones are usable. Minor changes in electrical characteristics.
#3 Added dip switch (S1) and resistor (R152) to enable JTAG only boot mode.
Type: Schematic Change
Reason: QSPI programming problems with newer Vivado versions.
Impact: None. Fix QSPI programming problems with newer Vivado versions according to AR#00002 - QSPI Programming issues.
#4 Added on-chip DDR3 ECC option (variant dependent).
Type: Schematic Change
Reason: Enable DDR3L ECC usage.
Impact: None.
#4 Connected DDR3 ECC I2C interface to I2C bus (Camera I2C or Header I2C) via I2C level shifter (U12) and adapted corresponding circuits (C120, C122, R153...R156, R165, R166, R170, and R171).
Type: Schematic Change
Reason: Enable DDR3L ECC usage.
Impact: None. Minor changes in electrical characteristics.
#5 Added option to place pull-up (R157) or pull-down (R158) resistor for DDR3 pin M7.
Type: Schematic Change
Reason: Avoid floating signal situations for memory devices with M7 signal.
Impact: None.
#6 Added transistor (T2A) and resistors (R162, R163, R164, R169) to enable I2C voltage level translator (U12).
Type: Schematic Change
Reason: Enable DDR3L ECC usage.
Impact: None. Minor changes in electrical characteristics.
#6 Added transistors (T2B, T3A, T3B) and resistors (R159, R160, R161, R167) for DDR3 ECC enabling and voltage level translation for signal "DDR3-ERR_LV".
Type: Schematic Change
Reason: Enable DDR3L ECC usage.
Impact: DDR3 ECC is connected to MIO52 or MIO53 (default). Firmware reflects it but custom firmware needs to be updated by customer.
#7 Changed ferrid bead BKP0603HS121-T (L1...L4, L6, L7, L9, L10) to MPZ0603S121HT000.
Type: Schematic Change
Reason: EOL of Component.
Impact: None.
#8 Changed common mode filter SP5001-04TTG (D8, D9) to EMI8042MUTAG.
Type: Schematic Change
Reason: EOL of Component.
Impact: None. Minor changes in electrical characteristics.
#9 Changed testpoint size from 0.8 mm to 1 mm diameter for testpoints (TP2, TP4, TP6, TP8...TP14).
Type: PCB Change
Reason: Use similar testpoints size for all testpoints.
Impact: None.
#10 Added testpoints TP15...TP20.
Type: PCB Change
Reason: Improve signal monitoring.
Impact: None.
#11 Changed fiducials to standard fiducial type.
Type: Schematic Change
Reason: Use standard fiducials.
Impact: None.
#12 Renamed signal name from "SPI-DQ0/M0" to "SPI-DQ0/M3".
Type: Schematic Change
Reason: Use AMD boot mode name convention.
Impact: None.
#13 Renamed signal name from "SPI-DQ3/M3" to "SPI-DQ3/M0".
Type: Schematic Change
Reason: Use AMD boot mode name convention.
Impact: None.
#14 Added legal notices, revision history, block and power diagram. Updated page count and order.
Type: Documentation Update
Reason: Documentation improvement.
Impact: None.
Method of Identification
The revision number is shown on the top side of the PCB.
Production Shipment Schedule
From january 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.
Contact Information
If you have any questions related to this PCN, please contact Trenz Electronics Technical Support at
- forum.trenz-electronic.de
- wiki.trenz-electronic.de
- support%trenz-electronic.de (subject = PCN-20230619)
phone
national calls: 05741 3200-0
international calls: 0049 5741 3200-0
Disclaimer
Any projected dates in this PCN are based on the most current product information at the time this PCN is being issued, but they may change due to unforeseen circumstances. For the latest schedule and any other information, please contact your local Trenz Electronic sales office, technical support or local distributor.
This PCN follows JEDEC Standard J-STD-046.
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