Company | Trenz Electronic GmbH |
---|---|
PCN Number | PCN-JJJJMMDD |
Title | PCN-JJJJMMDD TEXXXX-XX Title |
Subject | |
Issue Date | JJJJMMDD |
Products Affected
This change affects all Trenz Electronic TEXXXX SoMs: TEXXXX-XX*.
Affected Product | Replacement |
---|---|
TE | TE |
Changes
#3 Changed DCDC EN5311QI (U24, U25, U26) to MPM3834CGPA and adapted power circuit.
Type: Schematic Change
Reason: EOL of Component.
Impact: None. Increased current output capability. Minor changes in electrical characteristics.
#1 Changed DCDC (U23) from EN6347QI to MPM3860GQW-Z and adapted power circuit.
Type: Schematic Change
Reason: EOL of Component.
Impact: None. Increased current output capability. Minor changes in electrical characteristics.
#4 Changed load switch (Q1) from TPS27082LDDCR to MP5077GG-Z and adapted circuit.
Type: Schematic Change
Reason: BOM Optimization.
Impact: None. Increased current output capability. Minor changes in electrical characteristics.
#1 Added power supervisor (U4) for voltage rail VIN handling.
Type: Schematic Change
Reason: Power handling improvement.
Impact: Power supply starts only if voltage rail VIN is in adequate voltage range.
#8 Changed ferrid bead BKP0603HS121-T (L2...L7, L10...L13) to MPZ0603S121HT000.
Type: Schematic Change
Reason: EOL of Component.
Impact: None.
#8 Changed power sequencing.
Type: Schematic Change
Reason: Follow AMD recommendation.
Impact: Voltage rails start in other order. Voltage supervisor (U4) enables 1V voltage rail (DCDC U23) via signal EN_Module. 1V DCDC (U23) enables 1.8V voltage rail (DCDC U25) via signal PG_1V0. 1.8V DCDC (U25) enables 2.5V (DCDC U24) and DDR_VDD (DCDC U26) voltage rails via signal PG_1V8. Voltage rail 3.3V (load switch Q1) is logical AND-enabled via power good signal PG_2V5_3V3 from voltage rail 2.5V DCDC (U24) and DDR_VDD DCDC (U26) via diode (D4) and CPLD (U6) signal EN_3V3 via diode (D5).
#10 Added additional decoupling capacitors C166...C179.
Type: Schematic Change
Reason: Improve decoupling.
Impact: None.
#10 Added level shifter (U9) and capacitors (C185, C186) to separate power domains for signal FPGA_IO. Added fallback resistor (R91).
Type: Schematic Change
Reason: Improve power domain handling for signal FPGA_IO.
Impact: None.
#5 Added diode (D3) between U21 pin 3 net nRST_in and voltage rail 3.3V.
Type: Schematic Change
Reason: Protect manual reset pin.
Impact: None.
#1 Connected exposed pad for SDIO port expander (U15) to GND.
Type: Schematic Change
Reason: Improve thermal situation.
Impact: None.
#1 Changed power net name from 1.5V to DDR_VDD.
Type: Schematic Change
Reason: Improve name handling.
Impact: None.
#1 Pulled-up board revision signal (FPGA U2 pin H17) and updated board revision documentation.
Type: Schematic Change
Reason: Update revision information.
Impact: None. Firmware reflects it but custom firmware needs to be updated by customer.
#19 Added revision history, block and power diagram. Updated page count and order.
Type: Documentation Update
Reason: Documentation improvement.
Impact: None.
#11 Changed fiducials to standard fiducial type.
Type: Schematic Change
Reason: Use standard fiducials.
Impact: None.
#10 Removed serial number S/N.
Type: Schematic Change
Reason: EOL of Component.
Impact: None.
#17 Added testpoints TP1...TP41.
Type: PCB Change
Reason: Improve signal monitoring.
Impact: None.
#19 Added serial number box print on bottom overlay.
Type: PCB Change
Reason: Required for manufacturing.
Impact: None.
Method of Identification
Production Shipment Schedule
From XXXXX, 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-JJJJMMDD)
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.