pi3vdp612 Pericom Semiconductor Corporation, pi3vdp612 Datasheet - Page 5

• Manufacturer Part Number: pi3vdp612
• Description: High Bandwidth 6-differential Channel, 1 2 Demux For Displayporttm Rev 1.1a Signal Switching
• Manufacturer: Pericom Semiconductor Corporation

Application Example for single mode DP support
Truth Table (SEL control)
Application Example for Dual Mode Display Port Support
Notebook
Port B is active
Port A is active
Intel Chipset
09-0021
Function
Note: if the Max Vswing (in single-ended mode) of the signals to
PI3VDP612 exceeds 1.2V, then AC coupling capacitors are needed
between the 50ohm terminations and PI3VDP612.
LED
Driver
Dual Mode DP
Driver
Driver
DDC
AUX
DISPLAY
PORT T
X
PI3C3306
SEL
H
L
+
-
50
Vbias_Tx
Ω
1.2V Max Vswing
5-Differential
Min Vswing
50
Ω
HPD
V
0V
DD
1Mohm
CAB_DET
AUX/DDC
5
PI3VDP612
Truth Table (Latch control)
High Bandwidth 6-differential channel, 1:2 Demux
LE
0
1
+
-
for DisplayPort
LED
Dual Mode DP #1
CAB_DET1
AUX/DDC #2
AUX/DDC #1
CAB_DET2
Dual Mode DP #2
Responds to changes on SEL
DOCKING
CONNECTOR
HPD
HPD
Latched
DISPLAY
PORT
SEL
TM
Mode
Dual
Mode
DP
Dual
rev 1.1a Signal Switching
DP
100kΩ
100kΩ
GND/3.3V
GND/3.3V
x2
x2
LED
PS8928C
PI3VDP612
01/14/09