PCN-20230705 TE0703-06 to TE0703-07 Hardware Revision Change

Products Affected

This change affects all Trenz Electronic TE0703 SoMs: TE0703-07*.

Changes

#1 Removed VG96 connector (MECH1, MECH2, J1, J2) from BOM.

Type: BOM Change

Reason: Improve manufacturing process.

Impact: Connector no longer available within product. If needed, connector needs to be ordered separately (Trenz article number 21545).

#2 Changed DCDC (U3) 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.

#3 Changed load switch (Q1) from TPS27081ADDCR to load switch MP5077GG-Z and adapted circuit.

Type: Schematic Change

Reason: BOM Optimization.

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

#4 Named enable signal for load switch (Q1) to "EN_3.3V_SD".

Type: Schematic Change

Reason: Improve signal identification.

Impact: None.

#5 Changed clock (U6) from SiT8008AI-73-XXS-12.000000E to SiT8008BI-73-XXS-12.000000E.

Type: Schematic Change

Reason: Use new clock revision.

Impact: None.

#6 Changed USB connector (J12) from 629105150521 to 629105150921.

Type: Schematic Change

Reason: Follow USB specification.

Impact: Changed micro USB type B receptable to micro USB type AB receptable and mechanical component size. Reduced current capability.

#7 Changed SD Card connector (J3) from 504077-1891 to MEM2052-00-195-00-A.

Type: Schematic Change

Reason: EOL of Component.

Impact: Mechanical component size increased and push/pull changed to push/push.

#8 Changed pin header (J7) from two pins to three pins and added jumper (J20).

Type: Schematic Change

Reason: Improve manufacturing process.

Impact: None.

#9 Added pull-up resistor (R43) for signal "USB_OC".

Type: Schematic Change

Reason: Enable external pull-up option.

Impact: Firmware reflects it but custom firmware needs to be updated by customer.

#10 Added additional decoupling capacitors C55, C57...C65.

Type: Schematic Change

Reason: Improve decoupling.

Impact: None.

#11 Added testpoints (TP1...TP30).

Type: PCB Change

Reason: Improve voltage monitoring.

Impact: None.

#12 Changed 1 µF capacitor (C38, C39) from 6.3 V to 16 V.

Type: Schematic Change

Reason: BOM Optimization.

Impact: None.

#13 Changed 47 µF capacitor (C48) from 6.3 V, 1206 to 10 V, 0805.

Type: Schematic Change

Reason: BOM Optimization.

Impact: None.

#14 Changed 22 µF capcitor (C31) from 10 %, 1206 to 20 %, 0805.

Type: Schematic Change

Reason: BOM Optimization.

Impact: None.

#15 Changed resistor (R10, R14, R24, R27, R37, R38) from 10 kOhm to 12 kOhm.

Type: Schematic Change

Reason: BOM Optimization.

Impact: None.

#16 Changed resistor (R17...R20) from 4.7 kOhm to 5.1 kOhm.

Type: Schematic Change

Reason: BOM Optimization.

Impact: None.

#17 Changed fiducials to standard fiducial type.

Type: Schematic Change

Reason: Use standard fiducials.

Impact: None.

#18 Removed serial number S/N.

Type: Schematic Change

Reason: EOL of Component.

Impact: None.

#19 Added UKCA logo.

Type: PCB Change

Reason: Required for export to UK.

Impact: None.

#20 Changed address on silkscreen.

Type: PCB Change

Reason: Updated contact information.

Impact: None.

#21 Updated components from library.

Type: Schematic Change

Reason: Use latest component data.

Impact: None.

#22 Updated 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. Revision number position changes between REV06 and REV07 on top side of the PCB.

Production Shipment Schedule

This 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.

This PCN follows JEDEC Standard J-STD-046.