wintermute3

Member Since: July 6, 2009

Country: United States

  • Product BOB-09370 | about 3 years ago

    What is the dropout voltage of this module? For instance, if it is set for 5.0V output, can I get 6A out with a 6.0V input? This information is notably absent from the datasheet!

  • Product CEL-09311 | about 3 years ago

    I just reviewed Telit’s SIM holder design reference. It is amazing that they can write a whole document and still leave the SIMVCC issue ambiguous. The other possibility that might be at play is the SIMIN signal. We didn’t connect it on our new board, and it does not appear to be connected on the GE664 Eval Board either, but it does show a net name on a stub wire connected to ball C11/SIMIN on the Telit module. The Telit reference states that the pin should be grounded if it isn’t connected to a switch in the SIM socket. Is it really connected somewhere on the Eval Board? Thanks!<br />
    <br />
    - Michael

  • Product CEL-09311 | about 3 years ago

    We used this GE864 eval board to get a prototype working successfully, but when we fabricated our own board based on the Telit docs and the eval board schematic, we get no SIMVCC voltage. From the schematic, it appeared that the GE864 was sourcing SIMVCC, and the Telit datasheet is unhelpful. Is SIMVCC ‘silently’ connected to the 2.8V output of regulator U3? By ‘silently’, I mean not referenced on the PDF of the schematic for the eval board. Thanks!<br />
    <br />
    - Michael

No public wish lists :(