7-Channel Analog Video Switch
Description
PRELIMINARY INFORMATION, COMPANY CONFIDENTIAL
PI3V713
3.
3V, 7-Channel Analog Video Switch with Automatic Switching
Features
• Designed specifically to switch VGA signals • 7-Channels for VGA signals (R,G,B, Hsync, Vsync, DDC
Data, and DDC CLK) • Automatic or manual switching supported –Forces re-read of EDID when automatically switching • VDD = 3.
3V +/-10% • DDC path will operate as a 5V to 3.
3V level shifter • H/V output buffer with +/-24mA drive • ESD tolerance on video I/O pins is up to 12kV HBM per
JEDEC standard • -3dB BW of 1.
7GHz (typ) • Low Xtalk, (-38dB typ) • Low and Flat ON-STATE resistance (Ron = 4.
8-Ohm,
Ron(Flat) = 0.
5ohm, typ) • Low input/output capacitance (Con = 5.
6pF, typ) • Packaging (Pb-free and Green):
–32-contact TQFN (ZLE)
Applications
• Routes physical layer signals for high bandwidth digital video • Monitor detection supports automatic switching
Description
Pericom’s PI3V713 is a 7-channel video mux/demux used to switch between multiple VGA sources or end points.
In a notebook application where analog video signals are found in both the notebook and the dock, a switch solution is required to switch between the two video port locations.
With the high bandwidth of ~1.
7GHz, the signal integrity will remain strong even through the long FR4 trace between the notebook and the docking station.
In addition to high signal performance, the video signals are also protected against high ESD with integrated diodes to VDD and GND that will support up to12kV HBM ESD protection.
Application
Routing VGA signals with low signal attenuation and high ESD.
Block Diagram
Pin Diagram
VDD GND Priority/SEL TEST GND
R G B
H_SOURCE V_SOURCE
Priority/SEL SDA_SOURCE SCL_SOURCE
10-0168
+5V
Dual Buffer
R1 G1 B1
R2 G2 B2
H1_OUT V1_OUT
Control Logic
5V to 3.
3V Level Shifter
Dual Buffer
H2_OUT V2_OUT
SDA1 SCL1 SDA2 SCL2
1
R G
GND
VDD B
H_SOURCE V_SOURCE
MS SDA_SOURCE SCL_SOURCE
GND
32 31 30 29 28 1 27 2 26 3 25 4 24 5 23 6 GND 22 7 21 8 2...
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