PCN-20240611 TEBF0808-04A to TEBF0808-05 Hardware Revision Change

Products Affected

This change affects all Trenz Electronic TEBF0808 SoMs: TEBF0808-04A*.

ED: Tabelle ist fertig!

Changes

#3 Changed load switch TPS27082LDDCR (Q1, Q2, Q3) to MP5077GG-Z and adapted circuit.

Type: Schematic Change

Reason: BOM Optimization.

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

#1 Change eMMC (U2) from MTFC16GJVEC-2M WT to SDINBDG4-8G-XI2.

Type: BOM change

Reason: EOL of Component.

Impact: None. Replacement has same capacity as used on corresponding affected variant. Reference designs for vivado versions 2019.2 and 2020.2 were tested and work properly without any changes. (???)

#17 Changed resistor (R14) from 4.99 kOHm to 2 kOhm.

Type: BOM Change

Reason: Harmonize with TEBF0818 series.

Impact: None.

#28 Added testpoint (TP17, TP20 ... TP22).

Type: Schematic Change

Reason: Voltage and system monitoring improvement. (???)

Impact: None.

#12 Changed LED (D8, D10) from 150060VS75000 to 19-213/G6C-BM1N2/DT.

Type: Schematic Change

Reason: BOM Optimization.

Impact: None.

#1 Changed Fan F455B-05LD (M1) to Fan MF40060V2-1000U-A99 (MP1) and updated according mechanical screws and nuts.

Type: BOM change

Reason:  EOL of Component.

Impact: Specified airflow of fan decreases slightly from 0.03 m³/min to 0.028 m³/min. (???)

#12 Added fan controller LM96163CISD/NOPB (U54) option (default: not fitted).

Type: Schematic Change

Reason: Harmonize with TEBF0818 series.

Impact: None.

#12 Changed pin header (J19) from two pins to four pins.

Type: Schematic Change

Reason: Harmonize with TEBF0818 series.

Impact: None. Consider to use correct pins.

#7 Added module orientation mark in silkscreen top side.

Type: PCB change

Reason: Improve module orientation visibility.

Impact: None.

#7 Used resistor (R164) as pull-up resistor for signal "POK_1V8.

Type: Schematic Change

Reason: Use external pull-up resistor.

Impact: None.

#7 Changed resistor (R41) from 4.99 kOhm to 200 kOhm.

Type: Schematic Change

Reason: Harmonize with TEBF0818 series.

Impact: None.

#7 Changed resistor (R40) from 4.99 kOhm to 0 Ohm.

Type: Schematic Change

Reason: Harmonize with TEBF0818 series.

Impact: None.

#1 Restructered PCIe clock system tree. Differential clock (signals "CLK0_N" and "CLK0_P") is distributed via new added fanout buffer NB3L202KMN (U56) to PCIe connector (J11) (signals "PCI_REF_P" and "PCI_REF_N") and B2B connector (J2) (signals "B505_CLK0_P" and "B505_CLK0_N"). Removed clock oscillator DSC1123CI2-100.0000T (U6).

Type: Schematic Change

Reason: Harmonize with TEBF0818 series.

Impact:

#7 Changed AC coupling (C93/C94) to DC coupling (R263/R264) for differnetial clock signal "CLK0_N" and "CLK0_P".

Type: Schematic Change

Reason: Harmonize with TEBF0818 series.

Impact: None.

#7 Added termination resistor (R134) assembly option for differential clock signal "CLK0_N" and "CLK0_P".

Type: Schematic Change

Reason: Harmonize with TEBF0818 series.

Impact: None.

#22 Changed capacitor (C179, C182, C185, C221, C222, C223) from 100 nF, 6.3 V, X5R to 10 nF, 10 V, X7R.

Type: Schematic Change

Reason: BOM Optimization.

Impact: None.

#1

Type:

Reason: 

Impact:

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.

This PCN follows JEDEC Standard J-STD-046.