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| Company | Trenz Electronic GmbH |
|---|---|
| AVN Number | AVN-20211202 |
| Title | Problematic MEMS Oscillator |
| Subject | Information and remedy concerning problematic MEMS Oscillator |
| Issue Date | 2021-12-09 |
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Due to component shortage in spring/summer from June to August 2021 some Trenz Electronic products were assembled with datasheet compatible DSC6111MI2A-025.0000 instead of SiT8008BI-73-18S-25.000000E. Although there is no evidence for any performance issues from the datasheets at least one batch of DSC6111MI2A-025.0000 has been identified to be root of issues in specific applications.
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- Ethernet communication with online available standard reference design is unreliably:
- Standard ping test in separated environment results in package loss of up to 10% or
- unexpected link up/down switches.
- MGT communication fails, known to work designs showed no link.
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This note affects Trenz Electronic SoMs produced spring/summer from June to August 2021.
Method of Identification
If you encounter any of the above described issues please use Schematic (SCH-TE....pdf) and Assembly Diagram (AD-TE....pdf) for the corresponding product to locate the MEMS oscillator. Mentioned documents are accessible via Trenz Electronic download area. The table below shows example chip markings of MEMS oscillators. Letters may differ, but arrangement is specific for the used part.
| possibly affected | not affected |
|---|---|
| DSC6111MI2A-025.0000 | SiT8008BI-73-18S-25.000000E |
|
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Contact Information
If you have any questions related to this design note, please contact Trenz Electronics Technical Support at
- forum.trenz-electronic.de
- wiki.trenz-electronic.de
- support%trenz-electronic.de (subject = AVN-20211202)
phone
national calls: 05741 3200-0
international calls: 0049 5741 3200-0
Disclaimer
Any information in this advisory note are based on the most current information at the time this note is being issued. For the latest dates and any other information, please contact your local Trenz Electronic sales office, technical support or local distributor.
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