PI3DBV10
3.3V, Wide Bandwidth, 1-Channel, 2:1 Mux/
DeMux Video Switch w/ Single Enable
Features
•
R
ON
is 4Ω typical
• Low bit-to-bit skew: 200ps
• Low Crosstalk: –27dB @ 250MHz
• Near-Zero propagation delay: 250ps
• Switching speed: 9ns
• Channel On Capacitance: 9pF (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,12-contact TDFN (ZE)
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 PI3DBV10 is a 2- to 1-Channel multiplexer/demultiplexer
Video Switch with Hi-Z outputs. Industry leading advantages in-
clude 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 switch 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.
Application
• Routes physical layer signals for high bandwidth
digital video
Block Diagram
Pin Description
Y0
Y1
0I0
1I0
0I1
1I1
GND
VDD
Y
0
Y
1
GND
SEL
1
2
3
4
5
6
12
11
10
9
8
7
0l0
1I0
0I1
1I1
VDD
GND
SEL
Truth Table
Function
Y
n
to
n
I
o
Y
n
to
n
I
1
SEL
L
H
1
PS8707
07/07/04
PI3DBV10
3.3V, Wide Bandwidth, 1-Channel, 2:1
Mux/DeMux 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 RAT-
INGS 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.
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
R
ON
R
FLAT(ON)
ΔR
ON
Description
Input HIGH Voltage
Input LOW Voltage
Clamp Diode Voltage
Input HIGH Current
Input LOW Current
Switch On-Resistance
(3)
On-Resistance Flatness
(4)
On-Resistance match from cen-
ter ports to any other port
(4)
Test Conditions
Guaranteed HIGH level
Guaranteed HIGH level
V
CC
= Max., I
IN
= –18mA
V
CC
= Max., V
IN
= V
CC
V
CC
= Max., V
IN
= GND
V
CC
= Min., 1.25V ≤ V
IN
≤ V
CC
I
IN
= –40mA
V
CC
= Min., V
IN
@ 1.5V and V
CC,
I
IN
= -40mA
V
CC
= Min., 1.5V ≤ V
IN
≤ V
CC,
I
IN
= -40mA
Min.
2.0
-5.0
-
-
-
-
-
-
Type
(2)
-
-
-0.7
-
-
4
1.0
0.9
Max.
-
0.8
-1.2
±5
±5
8
-
2
Ω
μA
V
Units
Capacitance
(T
A
= 25°C, f = 1MHz)
Parameters
(4)
C
IN
C
OFF
C
ON
Description
Input Capacitance
Port I Capacitance, Switch OFF
Switch Capacitance, Switch ON
V
IN
= 0V
Test Conditions
Type
2.0
4.0
9.0
Max.
3.0
6.0
10.0
pF
Units
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.
2
PS8707
07/07/04
PI3DBV10
3.3V, Wide Bandwidth, 1-Channel, 2:1
Mux/DeMux Video Switch
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
= 25C ambient and maximum loading.
3. Per TTL driven input (control inputs only); A and B pins do not contribute to I
CC
.
Dynamic Electrical Characteristics Over the Operating Range
(T
A
= –40°C to +85°C, V
CC
= 3.3V ±10%, GND = 0V)
Parameters
X
TALK
O
IRR
BW
Description
Crosstalk
OFF Isolation
Bandwidth -3dB
Test Conditions
R
L
= 100Ω, f = 250 MHz
R
L
= 100Ω
Min.
-
-
-
Typ.
(1)
-27
-32
500
Max.
-
-
-
Units
dB
MHz
Switching Characteristics
Parameters
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 Y
N
,
N
I
0,
I
N
Line Disable Time - SEL to Y
N
,
N
I
0,
I
N
Output Skew between center port to any other port
(2)
Skew between opposite transitions of the same output (t
PHL
- t
PLH
)
(2)
Description
Test
Conditions
Min.
-
0.5
0.5
-
-
Typ.
(1)
0.25
-
-
0.1
0.1
15.0
9.0
0.2
0.2
ns
Max.
Units
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
PS8707
07/07/04
PI3DBV10
3.3V, Wide Bandwidth, 1-Channel, 2:1
Mux/DeMux Video Switch
Test Circuit for Electrical Characteristics
(1)
6.0V
VCC
200Ω
Pulse
Generator
VIN
RT
D.U.T
VOUT
10pF
CL
200Ω
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. Waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control.
Waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control.
4. All input impulses are supplied by generators having the following characteristics: PRR
≤
MHz, Z
O
= 50
Ω
, t
R
≤ 2.5ns, t
F
≤ 2.5ns.
5. The outputs are measured one at a time with on transition per measurement.
Switch Positions
Test
t
PLZ
, t
PZL
(output on I-side)
t
PHZ
, t
PZH
(output on I-side)
Prop Delay
Switch
6.0V
GND
Open
Test Circuit for Dynamic Electrical Characteristics
HP4195A
S1
R1
T1
V
CC
HP11667A
PI3DBV10
10pF
50Ω
4
PS8707
07/07/04
PI3DBV10
3.3V, Wide Bandwidth, 1-Channel, 2:1
Mux/DeMux Video Switch
Switching Waveforms
SEL
2.5V
1.25V
tPZL
VDD/2
1.25V
0V
3.5V
Input
t
PLH
Output
2.5V
2.5V
2.5V
t
PHL
2.5V
V
OL
Output
1.5V
V
OH
Output
tPLZ
VOL +0.3V
tPHZ
VDD/2
VOH –0.3V
VOH
VOL
VOH
VOL
tPZH
Voltage Waveforms Propagation Delay Times
Voltage Waveforms Enable and Disable Times
3.5V
2.5V
Data In
tPLHX
tPHLX
1.5V
VOH
2.5V
Data Out
at Channel X
I
tSK(o)
VOL
VOH
Data Out
at Channel Y
tPLHy
tPHLy
tSK(o) = I tPLHy – tPLHx I or I tPHLy – tPHLx I
2.5V
VOL
Output
tSK(p) = I tPHL – tPLH I
Input
tPLH
tPHL
3.5V
2.5V
1.5V
VOH
2.5V
VOL
Output Skew - t
SK(o)
Pulse Skew - t
SK(p)
Applications Information
Logic Inputs
The logic control inputs can be driven up to +3.6V regardless of the supply voltage. For example, given a +3.3V supply, the output
enables or select pins may be driven low to 0V and high to 3.6V. Driving IN Rail-to-Rail® minimizes power consumption.
Power-Supply Sequencing
Proper power-supply sequencing is advised for all CMOS devices. It is recommended to always apply V
CC
before applying signals
to the input/output or control pins.
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd
5
PS8707
07/07/04
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