PI3V314
Low On-Resistance, 3.3V High-Bandwidth
3-Port, 4:1 Mux/DeMux VideoSwitch
Features
•
•
Near-Zero propagation delay
5Ω switches connect inputs to outputs
Description
The PI3V314 is a true bi-directional 3-Port 4:1 multiplexer/
demultiplexer with Hi-Z outputs that is recommended for both RGB
and composite video switching applications. With the increased 4:
1 channels, multiple components, such as VCR, DVD, PC1, PC2
and etc. can be put on the video networks. The VideoSwitch can
be driven from a current output RAMDAC or voltage output com-
posite video source.
Low On-Resistance, Low Crosstalk, Low OFF Isolation and wide
bandwidth features make it ideal for video and other applications.
Industry leading advantages include a near zero propagation delay,
resulting from its low channel resistance and I/O capacitance. The
switch is bi-directional and offers little or no attenuation of the high-
speed signals at the outputs. The device also has exceptional high
current capability which is far greater than most analog switches
offered today. The PI3V314 offers a high-performance (375 MHz),
low-cost solution to switch between video sources.
• High signal passing bandwidth (375MHz)
• Beyond Rail-to-Rail switching
• 5V I/O tolerant with 3.3V supply
• 2.5V and 3.3V supply voltage operation
• Hot insertion capable
• Low Crosstalk (X
TALK
= -60dB Typ.)
• Low Off-Isolation (O
IRR
= -60db Typ.)
• Industrial operating temperature: -40ºC to +85ºC
• 2KV ESD Protection (human body model)
• Latch-up performance >250mA per JESD17
• Packaging (Pb-free & greeen available):
– 40-Pin 150-mil wide plastic BQSOP(B)
Pin Configuration
NC
EN0
S
1
I
A
3
I
A
2
I
A
1
I
A
0
Applications
•
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
NC
V
CC
NC
S
0
I
B
3
I
B
2
I
B
1
I
B
0
Projection TV and LCD TV
• Video consumer applications
• Analog video signal processing
Pin Description
Pin Name
I
A
N
,
I
B
N
Description
Data Inputs
Select Inputs
Enable
Data Outputs
Ground
Power
Y
A
GND
NC
NC
EN1
S
3
I
C
3
I
C
2
I
C
1
I
C
0
Y
B
NC
NC
V
CC
NC
S
2
NC
NC
NC
NC
NC
NC
S
0-3
EN
0
to EN
1
Y
A
to Y
C
GND
V
CC
Y
C
GND
NC
Notes:
1. N.C = No internal connection
06-0114
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PS8756C
06/29/06
PI3V314
Low On-Resistance, 3.3V High-Bandwidth
3-Port, 4:1 Mux/DeMux Video Switch
Block Diagram
I
A
0
I
A
1
I
A
2
I
A
3
I
B
0
I
B
1
I
B
2
I
B
3
Truth Table 1
(1)
Enable
Select
S
1
X
L
L
H
H
S
0
X
L
H
L
H
Y
A
/Y
B
Hi-Z
I0
I1
I2
I3
Function
Disable
S1-S0 = 0
S1-S0 = 1
S1-S0 = 2
S1-S0 = 3
EN
0
H
L
L
L
L
EN0
S
0
S
1
Y
A
I
C
0
Y
B
I
C
2
I
C
3
I
C
1
Truth Table 2
(1)
Enable
Select
S
3
X
L
L
H
H
S
2
X
L
H
L
H
Y
C
Hi-Z
I0
I1
I2
I3
Function
Disable
S3-S2 = 0
S3-S2 = 1
S3-S2 = 2
S3-S2 = 3
EN
1
H
L
L
L
L
EN1
S
2
S
3
Y
C
Notes:
1. For video applications: In order to control Muxing and DeMuxing
of all the 12 to 3 channels with the same control plane, the follow-
ing connectoins need to be made on the board:
a. EN0 and EN1 need to be tied together
b. S1 and S3 need to be tied together
c. S0 and S2 need to be tied together
Notes:
1. H=High Voltage Level; L=Low Voltage Level
06-0114
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PS8756C
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PI3V314
Low On-Resistance, 3.3V High-Bandwidth
3-Port, 4:1 Mux/DeMux Video Switch
Maximum Ratings
(Above which the useful life may be impaired. For user guidelines, not tested.)
Storage Temperature ................................................ –65°C to +150°C
Ambient Temperature with Power Applied ............... –40°C to +85°C
Supply Voltage to Ground Potential ........................... –0.5V to +4.6V
DC Input Voltage ........................................................ –0.5V to +6.0V
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 re-
liability.
DC Electrical Characteristics, 3.3V Supply
(Over the Operating Range, T
A
= –40°C to +85°C, V
CC
= 3.3V ± 10%)
Parameters
V
IH
V
IL
V
IK
I
IH
I
IL
I
OZH
R
ON
Description
Input HIGH Voltage
Input LOW Voltage
Clamp Diode Voltage
Input HIGH Current
Input LOW Current
Test Conditions
(1)
Min.
2.0
–0.5
-1.3
0.8
–1.8
±1
±1
±1
4
5
6
8
Ω
µA
V
Typ
(2)
Max.
Units
Guaranteed Logic HIGH Level
Guaranteed Logic LOW Level
V
CC
=
Min.,
I
IN
= –18
mA
V
CC
=
Max.,
V
IN
= V
CC
V
CC
=
Max.,
V
IN
= GND
V
CC
= Min.,
V
IN
= 0V,
I
ON
=
48 mA or -64mA
V
CC
= Min.,
V
IN
= 3.6V,
I
ON
= -15
mA
High Impedance Output Current
0 ≤ Y, In ≤ V
CC
Switch On-Resistance
(3)
DC Electrical Characteristics, 2.5V Supply
(Over Operating Range, T
A
= –40°C to +85°C, V
CC
= 2.5V ± 10%)
Parameters
(5)
Description
Input HIGH Voltage
Inout LOW Voltage
Clamp Diode Voltage
Input HIGH Current
Input LOW Current
High Impedance Current
Switch
On-Resistance
(3)
Test Conditions
(1)
Min.
1.8
–0.3
–0.7
Typ.
(2)
Max.
V
CC
+ 0.3
0.8
–1.8
±1
±1
±1
6
7
8
Ω
14
µA
V
Units
V
IH
V
IL
V
IK
I
IH
I
IL
I
OZH
R
ON
Guaranteed Logic HIGH Level
Guaranteed Logic LOW Level
V
CC
= Max., I
IN
= –6mA
V
CC
= Max., V
IN
= V
CC
V
CC
= Max., V
IN
= GND
0 ≤ Y, In ≤ V
CC
V
CC
= Min., V
IN
= 0V,
I
ON
= –48mA
V
CC
= Min., V
IN
= 2.25V,
I
ON
= -15mA
Notes:
1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type.
2. Typical values are at V
CC
= 3.3V, T
A
= 25°C ambient and maximum loading.
3. Measured by the voltage drop between Y and In pin at indicated current through the switch. On-Resistance is determined
by the lower of the voltages on the two (Y, In) pins.
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PI3V314
Low On-Resistance, 3.3V High-Bandwidth
3-Port, 4:1 Mux/DeMux Video Switch
Capacitance
(T
A
= 25°C f = 1 MHz)
Parameters
(2)
C
IN
C
OFF(IN)
C
OFF(Y)
C
ON
Description
Input Capacitance
In Capacitance, Switch Off
Y Capacitance, Switch Off
Y/In Capacitance, Switch On
V
IN
= 0V
Test Conditions
Typ.
(1)
3.0
3.5
12
15.0
Units
pF
Notes:
1. Typical values are at V
CC
= 3.3V, T
A
= 25°C ambient and maximum loading.
2. This parameter is determined by device characterization but is not production tested.
Power Supply Characteristics
Parameters
Description
I
CC
Quiescent Power Supply Current
Test Conditions
(1)
V
CC
= 3.6V, V
IN
= GND or V
CC
Min.
Typ.
(2)
Max.
1.6
Units
mA
Notes:
1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device.
2. Typical values are at V
CC
= 3.3V, +25°C ambient.
Dynamic Electrical Characteristics Over the Operating Range
(T
A
= -40º to +85º, V
CC
= 3.3V ± 10%)
Parameter
X
TALK
O
IRR
BW
Description
Crosstalk
Off-Isolation
-3dB Bandwidth
Test Condition
See Test Diagram (10 MHz)
See Test Diagram (10 MHz)
See Test Diagram (C
L
= 0pF)
Min.
Typ.
-60
-60
375
Max.
Units
dB
MHz
06-0114
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PS8756C
06/29/06
PI3V314
Low On-Resistance, 3.3V High-Bandwidth
3-Port, 4:1 Mux/DeMux Video Switch
Switching Characteristics over 3.3V Operating Range
Parameters
t
PLH
t
PHL
t
PZH
t
PZL
t
PHZ
t
PLZ
Description
Propagation Delay
(2,3)
Y to In, In to Y
Enable Time S or EN to Y or In
See Test Diagram
Disable Time S or EN to Y or In
1.5
9.0
Conditions
(1)
See Test Diagram
1.5
Com.
Min.
Max.
0.3
9.0
ns
Units
Switching Characteristics over 2.5V Operating Range
Parameters
t
PLH
t
PHL
t
PZH
t
PZL
t
PHZ
t
PLZ
Description
Propagation Delay
(2,3)
Y to In, In to Y
Enable Time S or EN to Y or In
See Test Diagram
Disable Time S or EN to Y or In
1.5
12.0
Conditions
(1)
See Test Diagram
1.5
Com.
Min.
Max.
0.3
15.0
ns
Units
Notes:
1. See test circuit and waveforms.
2. This parameter is guaranteed but not tested on Propagation Delays.
3. The switch contributes no propagational delay other than the RC delay of the On-Resistance of the switch and the load capacitance. The time
constant for the switch alone is of the order of 0.30ns for 10pF load. Since this time constant is much smaller than the rise/fall times of typical
driving signals, it adds very little propagational delay to the system. Propagational delay of the switch when used in a system is determined by
the driving circuit on the driving side of the switch and its interaction with the load on the driven side.
Bandwidth vs Capacitance
500
400
3db Bandwidth
300
200
100
0
0 pf
10 pf
20 pf
30 pf
40 pf
50 pf
Capacitance Load
06-0114
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PS8756C
06/29/06
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