Apalis Carrier Board Design Guide
Toradex AG l Altsagenstrasse 5 l 6048 Horw l Switzerland l +41 41 500 48 00 l
l
Page | 2
Issued by:
Toradex
Document Type:
Carrier Board Design Guide
Purpose:
This document is a guideline for developing a carrier board that conforms to the specifications
for the Apalis
®
Computer Module
Document
Version:
1.7
Revision History
Date
Version
Remarks
8 April 2013
V1.0
Initial Release: Preliminary Version
27 August 2013
V1.1
Correction in section 4.3
26 November 2013
V1.2
Correction in Figure 23
Correction in Table 10, Table 11, Table 12, and Table 13: signals
USBH_OC# and USBH_EN pin numbers
Correction in Table 16: Description of the pins 282-302
13 April 2015
V1.3
Remove layout guide section (available in a separate document), add
descriptions of low-speed interfaces, minor corrections
Correction of mSATA schematics (Figure 15)
9 June 2016
V1.4
Section 3.5: add information about current consumption budget
16 June 2016
V1.5
Section 2.1.1: update information about preferred interfaces
Section 2.12: add recommendation using MMC1 instead of SD1 as
preferred interface
Section 0: add suitable spacer
Add information about CSI, DSI, and recovery mode
29 June 2016
V1.6
Section 2.5.2.1: Add information about incompatible USB 3.0 OTG
cables
09 October 2018
V1.7
Add missing WAKE1_MICO# pull up resistors in examples
Section 2.4: Add recommendation for TVS diodes in PoE designs
Section 2.4.2: Update recommendation for center tap voltage
Section 2.8.2.2: Correct locations of pull resistors in description
Section 2.13: Clarify 1.8V bus voltage of SD cards
Section 2.13: Add recommendation for SD card power switching
Section 2.19: Clarify and correct Audio AGND recommendations
Section 2.23.2: Update recommendation for unused touch signals
Section 3.2: Correct of POWER_ENABLE_MOCI pull down resistor
Section 3.5: Clarify POWER_ENABLE_MOCI pull down resistor
Section 4.1: Add information regarding alternate module connectors
Section 4.3: Clarify operating temperature range