Adlink Express-IB Bedienungsanleitung Seite 17

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Express-IB Page 17
3.3. AB Signal Descriptions
3.3.1. Audio Signals
Signal Pin # Description I/O PU/PD Comment
AC_RST# /
HDA_RST#
A30 Reset output to CODEC, active low. O 3.3VSB
AC_SYNC /
HDA_SYNC
A29 Sample-synchronization signal to the CODEC(s). O 3.3V
AC_BITCLK /
HDA_BITCLK
A32 Serial data clock generated by the external
CODEC(s).
I/O 3.3V
AC _SDOUT /
HDA_SDOUT
A33 Serial TDM data output to the CODEC. O 3.3V
AC _SDIN[2:0]
HDA_SDIN[2:0]
B28
B30
Serial TDM data inputs from up to 3 CODECs. I/O 3.3VSB
3.3.2. Analog VGA
Signal Pin # Description I/O PU/PD Comment
VGA_RED B89 Red for monitor.
Analog DAC output, designed to drive a
37.5-Ohm equivalent load.
O Analog If VGA is used than signal should
be pulled to GND by 150 on the
carrier
VGA_GRN B91 Green for monitor
Analog DAC output, designed to drive a
37.5-Ohm equivalent load.
O Analog If VGA is used than signal should
be pulled to GND by 150 on the
carrier
VGA_BLU B92 Blue for monitor.
Analog DAC output, designed to drive a
37.5-Ohm equivalent load.
O Analog If VGA is used than signal should
be pulled to GND by 150 on the
carrier
VGA_HSYNC B93 Horizontal sync output to VGA monitor O 3.3V
VGA_VSYNC B94 Vertical sync output to VGA monitor O 3.3V
VGA_I2C_CK B95 DDC clock line (I²C port dedicated to identify
VGA monitor capabilities)
I/O OD 3.3V PU 2k2 3.3V
VGA_I2C_DAT B96 DDC data line. I/O OD 3.3V PU 2k2 3.3V
3.3.3. LVDS
Signal Pin # Description I/O PU/PD Comment
LVDS_A0+
LVDS_A0-
LVDS_A1+
LVDS_A1-
LVDS_A2+
LVDS_A2-
LVDS_A3+
LVDS_A3-
A71
A72
A73
A74
A75
A76
A78
A79
LVDS Channel A differential pairs O LVDS
LVDS_A_CK+
LVDS_A_CK-
A81
A82
LVDS Channel A differential clock O LVDS
LVDS_B0+
LVDS_B0-
B71
B72
LVDS Channel B differential pairs O LVDS
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