Schematics of C3V-W (LPDDR4) Core Board

Owned by Wells Lu
Last updated: Oct 29, 2024
1 min read

Refer to the attached schematics of C3V-W (LPDDR4) Core Board (v1.1c-20241023):

Revision history:

  1. V1.1 First release.

  2. V1.1b Fix some errata.

    1. VDD_VDIO_1 voltage (1.8V → 3.0V):

      1. R273: NC → 0R/0402

      2. R274: 0R/0402 → NC

    2. VDD_NPU power:

      1. C565: 10uF/0603 → 22uF/0603

      2. C566: 10uF/0603 → 22uF/0603

      3. C554: 47nF/0201 → NC

    3. Q42 control:

      1. C483: 0.22uF/0201 → 0.1uF/0201

    4. SYS_3V power:

      1. R601: 60K/1% → 60.4K/1%

  3. V1.1c Fix some errata.

    1. 32.768kHz crystal circuit:

      1. C356: 15pF/0201 → 18pF/0201

    2. 25MHz crystal circuit:

      1. C404: 15pF/0201 → 20pF/0201

    3. eMMC circuit:

      1. R258: 10K/0402 → 51K/0201