PI3DBV40
3.3V, Wide Bandwidth, 4-Channel,
2:1 Mux/DeMux Video Switch with Single Enable
Features
•
•
•
•
•
•
•
•
•
•
•
R
ON
is 4Ω typical
Low bit-to-bit skew: 200ps
Low crosstalk: –27dB @ 250MHz
Low Current Consumption: 20µA
Near-Zero propagation delay: 250ps
Switching speed: 9ns
Channel On-Capacitance: 9.5pF (typical)
V
CC
Operating Range: +3.0V to +3.6V
ESD>2000V . . . Human Body Model
>500 MHz bandwidth (or data frequency)
Packaging (Pb-free & Green available):
48-pin, 240-mil wide plastic TSSOP (A)
Description
Pericom Semiconductor’s PI3DBV series of logic circuits are
produced using the Company’s advanced sub-micron CMOS
technology, achieving industry leading performance.
The PI3DBV40 is a 8- to 4-channel multiplexer/demultiplexer.
Industry leading advantages include a propagation delay of less
than 250ps, resulting from its low channel resistance and I/O
capacitance. The device multiplexes differential outputs from a
video source to one of two corresponding outputs or switches two
inputs to a common display. The switch is bidirectional and offers
little or no attenuation of the high-speed signals at the outputs. It
is designed for low bit-to-bit skew, high channel-to-channel noise
isolation and is compatible with various standards, such as LVDS
and TMDS.
Applications
• Routes physical layer signals for high bandwidth
digital video
Block Diagram
Y
0
Y
1
0
I
1
1
I
1
0
I
2
1
I
2
Pin Description
V
DD
Y
0
GND
Y
1
GND
V
DD
GND
Y
2
GND
Y
3
GND
V
DD
GND
NC
Y
4
GND
Y
5
GND
V
DD
GND
Y
6
GND
Y
7
SEL
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
0
I
1
1
I
1
GND
0
I
2
1
I
2
Y
2
Y
3
2
I
1
3
I
1
2
I
2
3
I
2
GND
2
I
1
3
I
1
GND
2
I
2
3
I
2
Y
4
Y
5
4
I
1
5
I
1
4
I
2
5
I
2
GND
V
DD
4
I
1
5
I
1
Y
6
Y
7
6
I
1
7
I
1
6
I
2
7
I
2
GND
4
I
2
5
I
2
GND
6
I
1
7
I
1
SEL
GND
6
I
2
7
I
2
1
PS8709B
07/22/04
PI3DBV40
3.3V, Wide Bandwidth, 4-Channel,
2:1 Mux/DeMux Video Switch with Single Enable
Maximum Ratings
Truth Table
Function
Y
N
to
N
I
1
Y
N
to
N
I
2
SEL
L
H
(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 func-
tional 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.
DC Electrical Characteristics for Video Switching over Operating Range
(T
A
= –40°C to +85°C, V
CC
= 3.3V ±10%)
Paramenter
V
IH
V
IL
V
IK
I
IH
I
IL
I
OFF
R
ON
R
FLAT(ON)
∆R
ON
Description
Input HIGH Voltage
Input LOW Voltage
Clamp Diode Voltage
Input HIGH Current
Input LOW Current
Power Down Leakage Current
Switch On-Resistance(3)
On-Resistance Flatness(4)
On-Resistance match from center
ports to any other port(4)
Test Conditions
Guaranteed HIGH level
Guaranteed LOW level
V
CC
= Max., I
IN
= –18mA
V
CC
= Max., V
IN
= V
CC
V
CC
= Max., V
IN
= GND
VCC = 0V, VY = 0V, VI ≤ 3.6
V
CC
= Min., 1.5V ≤ V
IN
≤ V
CC
,
I
IN
= –40mA
V
CC
= Min., VIN @ 1.5V and V
CC
,
I
IN
= –40mA
V
CC
= Min., 1.5V ≤ V
IN
≤ V
CC
,
I
IN
= –40mA
Min.
2
–0.5
-
-
-
-
-
-
-
Typ.
(2)
-
-
–0.7
-
-
-
4
1
0.9
Max.
-
0.8
–1.2
±5
±5
±5
8
-
2
Ω
µA
V
Units
2
PS8709B
07/22/04
PI3DBV40
3.3V, Wide Bandwidth, 4-Channel,
2:1 Mux/DeMux Video Switch with Single Enable
Capacitance
(T
A
= 25°C, f = 1MHz)
Parameters
(4)
Description
Input Capacitance
Port I Capacitance, Switch OFF
Switch Capacitance, Switch ON
V
IN
= 0V
Test Conditions
Typ.
3.1
2.8
9.5
(5)
Max.
3.6
6.0
10.9
pF
Units
C
IN
C
OFF
C
ON
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 A and B pins at indicated current through the switch. On-Resistance is determined by the lower of the
voltages on the two (A & B) pins.
4. This parameter is determined by device characterization but is not production tested.
5. Measured on worst case corner pin.
Power Supply Characteristics
Parameters
I
CC
Description
Quiescent Power Supply Current
Test Conditions
(1)
V
CC
= Max., V
IN
= GND or V
CC
Min.
-
Typ.
(2)
-
Max.
800
Units
µA
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.
Dynamic Electrical Characteristics Over the Operating Range
(TA=-40º to +85ºC, VCC=3.3V±10%, GND=0V)
Parameter
X
TALK
O
IRR
BW
Description
Crosstalk
OFF Isolation
Bandwidth –3dB
Test Conditions
f = 250MHz, See Fig. 2
f = 250MHz, See Fig. 3
See Fig. 1, Fig. 4
Min.
-
-
-
Typ.
(2)
-27
-32
500
Max.
-
-
-
Units
dB
MHz
Switching Characteristics
Paramenter
t
PD
t
PZH
, t
PZL
t
PHZ
, t
PLZ
t
SK(o)
t
SK(p)
Propagation Delay(2,3)
Line Enable Time - SEL to YN, IN
Line Disable Time - SEL to YN, IN
Output Skew between center port (Y4 to Y5) to any other port(2)
Skew between opposite transitions of the same output
(t
PHL
- t
PLH
) (2)
Description
Min.
-
0.5
0.5
-
-
Typ.(2)
0.25
-
-
0.1
0.1
Max.
15
9
0.2
0.2
Units
ns
Notes:
1. For max. or min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type.
2. Guaranteed by design.
3. The bus 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 0.25ns 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 bus switch when used in a system is
determined by the driving circuit on the driving side of the switch and its interactions with the load on the driven side.
3
PS8709B
07/22/04
PI3DBV40
3.3V, Wide Bandwidth, 4-Channel,
2:1 Mux/DeMux Video Switch with Single Enable
Test Circuit for Electrical Characteristics
(1)
6.0V
V
CC
200-ohm
Pulse
Generator
V
IN
D.U.T
R
T
V
OUT
10pF
C
L
200-ohm
Notes:
1. C
L
= Load capacitance: includes jig and probe capacitance.
2. R
T
= Termination resistance: should be equal to Z
OUT
of the Pulse Generator
3. All input impulses are supplied by generators having the following characteristics: f = 10 MHz, Z
O
= 50Ω, t
R
≤ 2.5ns, t
F
≤ 2.5ns.
4. The outputs are measured one at a time with one transition per measurement.
Switch Positions
Test
t
PLZ
, t
PZL
(output on I-side)
t
PHZ
, t
PZH
(output on I-side)
Prop Delay
6.0V
GND
Open
Switch
Test Circuit for Dynamic Electrical Characteristics
HP4396B
S
HP11667A
50-ohm
50-ohm
50-ohm
R
T
PI3DBV40
CL =
See Graph Fig 4
Figure 1. Bandwidth -3dB Testing
4
PS8709B
07/22/04
PI3DBV40
3.3V, Wide Bandwidth, 4-Channel,
2:1 Mux/DeMux Video Switch with Single Enable
HP4396B
S
HP11667A
50
50
50
R
PI3DBV40
100
T
100
Figure 2. Crosstalk Test Setup
HP4396B
S
HP11667A
50
50
50
100
R
T
PI3DBV40
Figure 3. Off Isolation Tets Setup
5
PS8709B
07/22/04
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