PI3V724 Datasheet, PDF (3/14 Pages) Pericom Semiconductor Corporation – 1 to 2 VGA Demux

PI3V724
1 to 2 VGA Demux
Pinout Table
Pin #
Name
1
R
2
G
3
GND
4
Vdd
5
B
6
H_Source
7
V_Source
8
MS
9
SDA_Source
10
SCL_Source
11
Rref
12
SDA1
13
SDA2
14
SCL1
15
SCL2
16
Vdd5_IN
17
V2_out
18
V1_out
19
H2_out
20
H1_out
21
B2
22
B1
23
Vdd
24
G2
25
G1
26
R2
27
R1
28
CE
29
OUT
30
Priority/SEL
31
GND
32
Test
14-0168
Type
I/O
I/O
Ground
Power
I/O
I
I
I
I/O
I/O
I
I/O
I/O
I/O
I/O
I (Power)
O
O
O
O
I/O
I/O
Power
I/O
I/O
I/O
I/O
I
O
I
Ground
I
Description
Red signal from source
Green signal from source
Ground
3.3V Power Supply
Blue signal from source
Horizontal Synchronous signal from source. Internal 300Kohm pull-down
Vertical Synchronous signal from source. Internal 300Kohm pull-down
Mode Select (switch between auto switch vs. manual switch). OUTx pins work
regardless of MS pin status. Internal pull down.
DDC data signal from source
DDC clock signal from source
Connect external resistor to ground to determine which application scheme
best matches your design. For actual R values, please see page 6
DDC data signal from VGA connector 1
DDC data signal from VGA connector 2
DDC clock signal from VGA connector 1
DDC clock signal from VGA connector 2
5V input power supply
Buffered, vertical synch signal output for VGA connector #2
Buffered vertical synchronous signal driving VGA connector #1
Buffered, horizontal synch signal output for VGA connector #2
Buffered horizontal synchronous signal driving VGA connector #1
Un-buffered, Blue signal driving VGA connector 2
Un-buffered, Blue signal driving VGA connector 1
3.3V Power Supply
Un-buffered, Green signal driving VGA connector 2
Un-buffered, Green signal driving VGA connector 1
Un-buffered, Red signal driving VGA connector 2
Un-buffered, Red signal driving VGA connector 1
Chip enable input. If signal is LOW, then chip is fully functional. If signal is
HIGH, then IC is powered down and all I/O’s are hi-z
open drain output describing external monitor status. If connected, OUT is
LOW, if not connected, OUT is hi-z. OUT will only provide the status of the
CHOSEN port. Chosen port can be determined based on manual switching
or automatic switching (please see truth table for more information on how to
configure into auto mode or manual mode)
Output Port selection or output port priority depending on MS pin status
Ground
please tie high or leave floating for normal operation. internal pull-up
3
www.pericom.com 10/22/14