Page History
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Company | Trenz Electronic GmbH |
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PCN Number | PCN-20240618 |
Title | TE0841-02 to TE0841-03 Hardware Revision Change |
Subject | Hardware Revision Change |
Issue Date | 2024-0708-0127 |
Products Affected
This change affects all Trenz Electronic TE0841-02 SoMs: TE0841-02*.
Affected Product | Changes | Replacement |
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TE0841-02-31C21-A | #1 ... #24 | TE0841-03-31C31-A |
TE0841-02-31C31-A | #2 ... #24 | TE0841-03-31C31-A |
TE0841-02-31I21-A | #1 ... #24 | TE0841-03-31I31-A |
TE0841-02-31I21-T | #1 ... #24 | TE0841-03-31I31-T |
TE0841-02-32I21-A | #1 ... #24 | TE0841-03-32I31-A |
TE0841-02-41C21-A | #1 ... #24 | TE0841-03-41C31-A |
TE0841-02-41I21-A | #1 ... #24 | TE0841-03-41I31-A |
TE0841-02-41I21-L | #1 ... #24 | TE0841-03-41I31-L |
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Changes
#1 Changed DDR4 SDRAM (U4, U5) from K4A8G165WB-BIRC to K4A8G165WC-BITDTCV.
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Reason: BOM Optimization.
Impact: DDR timing needs to New DDR timings may be considered in customer design. Trenz Reference Design reflects it but custom firmware needs to be checked and eventually updated by customerdesigns. DDR4 setup used in Trenz reference designs is known to work still.
#2 Changed DCDC EN63A0QI (U7, U14) to LTM4638EY#PBF
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Reason: EOL of component.
Impact: NoneIncreased component height may be considered. Maximum continuous output current increased from 12A 12 A to 15A 15 A per DCDC.
#3 Increased voltage from 1.35 V to 1.42 V via voltage divider resistor (R11) and changed voltage rail name accordingly from PL_GT_1V35 to PL_GT_1V42.
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Reason: Improve voltage rail behaviour.
Impact: None.
#4 Changed load switch TPS27082LDDCR (Q1) to MP5077GG-Z and adapted circuit.
Type: Schematic Change
Reason: BOM Optimization.
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Reason: Keep FPGA in reset while signal "PROG_B" is low during initial power-up.
Impact: None.
#8 Added pull-up resistor (R79
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... R82) for signals "PROG_B", "INIT_B", "DONE", "PG_GT".
Type: Schematic Change
Reason: Use external pull-up resistor.
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Reason: Increase voltage rating.
Impact: None.
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#12 Changed 22 µF capacitor (C23, C28, C30, C32, C34) from 6.3 V to 10 V.
Type: Schematic Change
Reason: BOM Optimization.
Impact: None.
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#13 Changed 47 µF capacitor (C1, C3 ... C6, C13 ... C15, C60) from 0805 to 0603.
Type: Schematic Change
Reason: BOM Optimization.
Impact: None.
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#14 Changed 100 µF capacitor (C61) from 6.3 V, 1206 to 4 V, 0805.
Type: Schematic Change
Reason: BOM Optimization.
Impact: None.
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#15 Changed resistor (R35) from 4.7 kOhm 50 mW, 0201 to 2.37 kOhm 63 mW, 0402.
Type: Schematic Change
Reason: Follow AMD recommendation.
Impact: None.
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#16 Changed resistor (R25, R26, R52, R57) from 4.7 kOhm 50 mW, 0201 to 23.7 kOhm 63 mW, 0402.
Type: Schematic Change
Reason: Decrease current flow through resistor.
Impact: None.
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#17 Set resistor (R71) to not fitted.
Type: Schematic Change
Reason: BOM Optimization.
Impact: None.
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#18 Added testpoint (TP3 ... TP37).
Type: Schematic Change
Reason: Power and signal monitoring improvement.
Impact: None.
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#19 Swapped clock (U11) net name "CLK200M_P" and "CLK200M_N" at pin 4 and 5.
Type: Schematic Change
Reason:Documentation improvement.
Impact: None.
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#20 Removed track-it traceability pad S/N.
Type: Schematic Change
Reason: EOL of Component.
Impact: None.
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#21 Added CE-, UKCA- and RoHS-logo.
Type: PCB Change
Reason: Improve product classification.
Impact: None.
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#22 Updated components from library.
Type: Schematic Change
Reason: Use latest component data.
Impact: None.
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#23 Signal trace lengths changed
Type: PCB change
Reason: Result of changes above.
Impact: Changed trace length have to be taken into account in existing designs. The trace length for new revision will be available in TE0841 series pinout generator. Please check if change in trace length still matches your requirements. Adaption of carrier may be necessary.
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#24 Added legal notices, system and power diagram. Updated revision history. Updated page count and order.
Type: Documentation Update
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Production Shipment Schedule
From January 2025, after old stock is goneThis change takes place with immediate effect. 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-20240618)
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.
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