Power And Gnd Signal Descriptions - DFI GH9A3 User Manual

Power and GND Signal Descriptions

Signal Pin# Pin Type Pwr Rail /Tolerance
VCC_12V Power 4.75V – 20.0V
A104~A109
B104~B109
VCC_5V_SBY B84~B87 Power 4.75V - 5.25V
VCC_RTC A47 Power 2.0V - 3.3V
GND Pin Type: Power; Pin#: A1, A11, A21, A31, A41, A51, A57, A60, A66,
A70, A80, A90, A100, A110, B1, B11, B21 ,B31, B41, B51, B60, B70,
B80, B90, B100, B110
User's Manual | GH9A3
WL9A3 Carrier Board
12V – 20V
4.75V - 5.25V
2.0V - 3.3V
HARDWARE INSTALLATION
Description
Primary power input: +12V nominal. All available VCC_12V pins on
the connector(s) shall be used. The module supplies a wide range
of power from 4.75V to 20.0V.
Standby power input: +5.0V nominal. If VCC5_SBY is used, all
available VCC_5V_SBY pins on the connector(s) shall be used. Only
used for standby and suspend functions. May be left unconnected
if these functions are not used in the system design.
Real-time clock circuit-power input. Nominally +3.0V.
Ground - DC power and signal and AC signal return path.
All available GND connector pins shall be used and tied to Carrier
Board GND plane.
Chapter 2
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