Document
PI3V713-A
3.3V, 7-Channel Analog Video Switch
Features
• Designed specifically to switch VGA signals • 7-Channels for VGA signals (R,G,B, Hsync, Vsync, DDC
Data, and DDC CLK) • 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
Description
Pericom’s PI3V713-A 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
R G B
H_SOURCE V_SOURCE
SEL SDA_SOURCE SCL_SOURCE
10-0192
+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
SDA1 SDA2 SCL1 SCL2 5V VDD
Pin Diagram
VDD GND SEL TEST GND
R G
GND
VDD B
H_SOURCE V_SOURCE
Reserved 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 20 9 19 10 18 11 17 12 13 14 15 16
R1 R2
G1 G2 VDD B1
B2 H1_OUT H2_OUT V1_OUT V2_OUT
1
PS9101
06/29/10
PI3V713-A 3.3V, 7-Channel Analog Video Switch
Pin Description
Pin Number Pin Name 1R 2G 3 GND 4 VDD 5B 6 H_SOURCE 7 V_SOURCE 8 Reserved 9 SDA_SOURCE 10 SCL_SOURCE 11 GND 12 SDA1 13 SDA2 14 SCL1 15 SCL2 16 5V VDD 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 GND
29 TEST
30 SEL
31 GND 32 VDD
Pin Type I/O I/O Ground Power I/O I I I I/O I/O Ground I/O I/O I/O I/O Power O O O O I/O I/O Power I/O I/O I/O I/O Ground
Input
I
Ground Power
Description Red signal from VGA Transmitter Green signal from VGA Transmitter Ground 3.3V +/-10% power rail Blue signal from VGA Transmitter Horizontal Synchronous signal from VGA Transmitter Vertical Synchronous signal from VGA Transmitter For normal operation, this pin needs to be tied HIGH DDC, data signal from VGA Transmitter DDC, clock signal from VGA Transmitter Ground DDC, data signal for VGA output port 1 DDC, data signal for VGA output port 2 DDC, clock signal for VGA output port 1 DDC, clock signal for VGA output port 2 5V +/-10% Power rail Vertical Synchronous buffered signal for VGA output port 2 Vertical Synchronous buffered signal for VGA output port 1 Horizontal Synchronous buffered signal for VGA output port 2 Horizontal Synchronous buffered signal for VGA output port 1 Blue signal for VGA port 2 Blue signal for VGA port 1 3.3V +/-10% power rail Green signal for VGA port 2 Green signal for VGA port 1 Red signal for VGA port 2 Red signal for VGA port 1 Ground Description is TEST pin to enable TEST mode. IF this pin is LOW, then test mode is enabled. For normal usage disable TEST mode by holding this pin high, or floating. There is an internal 100Kohm pull-up on this pin Control signal. If pin 30 is LOW, port 1 is chosen If pin 30 is HIGH, port 2 is chosen Ground 3.3V +/-10% power rail
10-0192
2
PS9101
06/29/10
PI3V713-A 3.3V, 7-Channel Analog Video Switch
Maximum Ratings
(Above which useful life may be impaired. For user guidelines, not tested.)
Storage Temperature....................................–65°C to +150°C Supply Voltage to Ground Potential...............–0.5V to +4.0V DC Input Voltage............................................–0.5V to +5.5V DC Output Current......................................................120mA Power Dissipation...........................................................0.5W
Note: Stresses greater than those listed under MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability.
Truth Table
SEL 0 1
Result Port 1 is active Port 2 is active
DC Electrical Characteristics for Video Switching over Operating Range
(TA = –40°C to +85°C, VDD = 3.3V ±10% , 5V VDD = 5V)
Parameters
Description
Test Conditions(1)
VIH
VIL VIK
Input HIGH Voltage (SEL/Priority and MS pins)
Input LOW Voltage (SEL/Priority, and MS pins)
Clamp Diode Voltage
G.