SM-C93
SM-C93 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: A.R - Reviewed by M.B. - Copyright © 2021 SECO S.p.A.
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Please refer to the above schematics as an example of connection of HDMI interface on the carrier board, with Voltage clamping diodes highly recommended on all
signal lines for ESD suppression, as well as common mode choke inductors for EMI purpose. Voltage level shifters are necessary on Control data/Clock signals, as
well as for Hot Plug Detect signal.
OR the signals for the Channel are DP++:
DP/ DP1_LANE0-: DP Channel #1 Output Differential Pair #0
DP/ DP1_LANE1-: DP Channel #1 Output Differential Pair #1
DP/ DP1_LANE2-: DP Channel #1 Output Differential Pair #2
DP/ DP1_LANE3-: DP Channel #1 Output Differential Pair #3
: DDC Clock line for DP Channel #1. Bidirectional signal, +3.3
-up resistor
DP1_AUX-: DDC Data line for DP Channel #1. Bidirectional signal, +3.3
-up resistor
DP1_HPD: Hot Plug Detect, Active high Input signal of +1.8V_RUN electrical level from carrier board. 1M
Ω
pull-down resistor is placed on module for this signal.
DP1_AUX_SEL: Select input signal to switch between I2C Clock/Data for HDMI (high level) and Display Port Auxiliary Channel for DP/HDMI (low level). 1M
Ω
pull-
down resistor is placed on module for this signal.
Please refer to the following schematics as an example of connection of DP interface on the carrier board, with Voltage clamping diodes highly recommended on
all signal lines for ESD suppression. Hot Plug Detect signal must be buffered to prevent back feeding of power from the display to the module as well as level
translation. Switch with settable current limit on power lines are recommended.
