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| author | Marti Bolivar <mbolivar@leaflabs.com> | 2011-05-27 15:59:19 -0400 |
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| committer | Marti Bolivar <mbolivar@leaflabs.com> | 2011-05-27 16:02:20 -0400 |
| commit | f57c2caf669db3ad0789de67ff9c7faabebbd959 (patch) | |
| tree | 8f9cf006058c6ba2a625fa23e2798be925ebb1d3 /docs | |
| parent | 8dcb324c1fc847c082e5380617352af3cd545c1b (diff) | |
| download | librambutan-f57c2caf669db3ad0789de67ff9c7faabebbd959.tar.gz librambutan-f57c2caf669db3ad0789de67ff9c7faabebbd959.zip | |
Docs: Include D3 in low-noise analog pins on Mini.
Diffstat (limited to 'docs')
| -rw-r--r-- | docs/source/hardware/maple-mini.rst | 17 |
1 files changed, 6 insertions, 11 deletions
diff --git a/docs/source/hardware/maple-mini.rst b/docs/source/hardware/maple-mini.rst index 3e79ed0..743bf1d 100644 --- a/docs/source/hardware/maple-mini.rst +++ b/docs/source/hardware/maple-mini.rst @@ -221,19 +221,14 @@ using the pins summarized in the following table: Low-Noise ADC Pins ^^^^^^^^^^^^^^^^^^ -Analog input pins D4 — D11 on the Maple Mini generally offer -lower-noise ADC performance than D3. If you’re concerned about -getting good ADC readings, we recommend using one of these pins to -take your measurements. - Maple Mini has an electrically isolated analog power plane with its own regulator, and a geometrically isolated ground plane, connected to -the digital plane by an inductor. Pins D4 — D11 are laid out to -correspond with these analog planes, and our measurements indicate -that they generally have the lowest noise of all the analog lines. -However, analog performance may vary depending upon the activity of -the other GPIOs. Consult the :ref:`Maple Mini hardware design files -<maple-mini-hardware>` for more details. +the digital plane by an inductor. Its analog input pins, D3 — D11, +are laid out to correspond with these analog planes, and our +measurements indicate that they generally offer low noise ADC +performance. However, analog performance may vary depending upon the +activity of the other GPIOs. Consult the :ref:`Maple Mini hardware +design files <maple-mini-hardware>` for more details. .. _maple-mini-board-values: |