Intel Edison Compute Module (IoT) Spezifikationen PDF herunterladen (Seite 21)

Shield pin configuration

6 Layout

6.1 Antenna keepout

The area under and around the antenna should be kept free of all components, routes, and ground plane. The

Intel® Edison compute module DXF in white with antenna keepout shown in the Arduino* trace layers. See Figure 7.

Figure 7 Area around antenna

6.2 Layout SD card, I2S, SPI, I2C

Table 10 Layout SD card

Signal parameter Metric (mm) Standard (mils)

Total length L1

0.254 to 101.6 mm 10 to 4000 mils

DATA/CMD/CTRL to CLK maximum pin-to-pin length mismatch

±2.54 mm ±100 mils

Minimum main route spacing ratio

60 × 60

m. 1:1 trace width/space.

CLK to DATA/CMD/CTRL matching

±200 mils

Characteristic single ended impedance

42 to 45 ohm (±10%)

Load capacitance

2 to 5 pF

Note: 1) For SPI, total length is 6000 mils.

2) For I

C, total length is 8000 mils.

Intel® Edison Kit for Arduino*

December 2014 Hardware Guide

Document Number: 331191-004 21

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Intel Edison Compute Module (IoT) Spezifikationen Seite 21