1PS8709 12/05/03
Product Features
• RON 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: 9pF (typical)
• VCC Operating Range: +3.0V to +3.6V
• ESD>2000V . . . Human Body Model
• >500 MHz bandwidth (or data frequency)
• Package (Pb-free available):
48-pin 240 mil wide plastic TSSOP (A)
Applications
• Routes physical layer signals for high bandwidth
digital video
10I1
1I1
GND
0I2
1I2
GND
2I1
3I1
GND
2I2
3I2
GND
VDD
4I1
5I1
GND
4I2
5I2
GND
6I1
7I1
GND
6I2
7I2
VDD
Y0
GND
Y1
GND
VDD
GND
Y2
GND
Y3
GND
VDD
GND
NC
Y4
GND
Y5
GND
VDD
GND
Y6
GND
Y7
SEL
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
38
37
36
35
34
48
47
46
45
44
43
33
32
31
30
42
41
40
39
20
21
22
23
24
29
28
27
26
25
Product 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
Video Switch with Hi-Z outputs. 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.
Logic Block Diagram
Pin Description
PI3DBV40
3.3V, Wide Bandwidth, 4-Channel, 2:1,
Mux/Demux Video Switch with Single Enable
SEL
Y7
Y6
Y5
Y4
Y3
Y2
Y1
Y0
1I1
0I1
1I2
0I2
3I1
2I1
3I2
2I2
5I1
4I1
5I2
4I2
7I1
6I1
7I2
6I2
2PS8709 12/05/03
PI3DBV40
3.3V, Wide Bandwidth, 4-Channel, 2:1,
Mux/Demux Video Switch with Single Enable
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 specication is not implied.
Exposure to absolute maximum rating conditions for extended periods
may affect reliability.
Maximum Ratings
(Above which useful life may be impaired. For user guidelines,
not tested.)
Truth Table
Function SEL
YN to NI1L
YN to NI2H
DC Electrical Characteristics for Video Switching over Operating Range
(TA = –40°C to +85°C, VCC = 3.3V ±10%)
Paramenter Description Test Conditions Min. Typ.(2) Max. Units
VIH Input HIGH Voltage Guaranteed HIGH level 2 - -
VVIL Input LOW Voltage Guaranteed LOW level –0.5 - 0.8
VIK Clamp Diode Voltage VCC = Max., IIN = –18mA - –0.7 –1.2
IIH Input HIGH Current VCC = Max., VIN = VCC - - ±5
µA
IIL Input LOW Current VCC = Max., VIN = GND - - ±5
IOFF Power Down Leakage Current VCC = 0V, VA = 0V, VB ≤ 3.6 - - -
RON Switch On-Resistance(3)
VCC = Min., 1.5V ≤ VIN ≤ VCC IIN
= –40mA - 4 8
Ω
RFLAT(ON) On-Resistance Flatness(4)
VCC = Min., VIN @ 1.5V and VCC
IIN = –40mA - 1 -
∆RON
On-Resistance match from center
ports to any other port(4)
VCC = Min., 1.5V ≤ VIN ≤ VCC
IIN = –40mA - 0.9 2
3PS8709 12/05/03
PI3DBV40
3.3V, Wide Bandwidth, 4-Channel, 2:1,
Mux/Demux Video Switch with Single Enable
Power Supply Characteristics
Notes:
1. For max. or min. conditions, use appropriate value specied under Electrical Characteristics for the applicable device type.
2. Typical values are at VCC = 3.3V, TA = 25°C ambient and maximum loading.
3. Per TTL driven input (control inputs only); A and B pins do not contribute to ICC.
Parameter Description Test Conditions Min. Typ.(2) Max. Units
XTALK Crosstalk
RL = 100Ω, f = 250MHz
- -27 -
dB
OIRR OFF Isolation - -32 -
BW Bandwidth –3dB RL = 100Ω - 500 - MHz
Notes:
1. For max. or min. conditions, use appropriate value specied 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.
Dynamic Electrical Characteristics Over the Operating Range (TA=-40º to +85ºC, VCC=3.3V±10%, GND=0V)
Parameters Description Test Conditions(1) Min. Typ.(2) Max. Units
ICC Quiescent Power Supply Current VCC = Max., VIN = GND or VCC - - 800 µA
Capacitance (TA = 25°C, f = 1MHz)
Notes:
1. For max. or min. conditions, use appropriate value specied under Electrical Characteristics for the applicable device type.
2. Typical values are at VCC = 3.3V, TA = 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.
Parameters(5) Description Test Conditions Typ. Max. Units
CIN Input Capacitance
VIN = 0V
2.0 3.0
pFCOFF Port I Capacitance, Switch OFF 4.0 6.0
CON Switch Capacitance, Switch ON 9.0 10.0
Paramenter Description Test
Conditions Min. Typ.(2) Max. Units
tPD Propagation Delay(2,3) - 0.25
ns
tPZH, tPZL Line Enable Time - SEL to YN, IN0.5 - 15
tPHZ, tPLZ Line Disable Time - SEL to YN, IN0.5 - 9
tSK(o) Output Skew between center port (Y4 to Y5) to any other port(2) - 0.1 0.2
tSK(p) Skew between opposite transitions of the same output (tPHL
- tPLH) (2) - 0.1 0.2
Switching Characteristics
4PS8709 12/05/03
PI3DBV40
3.3V, Wide Bandwidth, 4-Channel, 2:1,
Mux/Demux Video Switch with Single Enable
RT10pF
CL
VCC
VIN VOUT
200Ω
200Ω
6.0V
Pulse
Generator
D.U.T
Test Circuit for Electrical Characteristics(1)
Notes:
1. CL = Load capacitance: includes jig and probe capacitance.
2. RT = Termination resistance: should be equal to ZOUT 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, ZO = 50Ω, tR ≤ 2.5ns, tF ≤ 2.5ns.
5. The outputs are measured one at a time with one transition per measurement.
Switch Positions
Test Circuit for Dynamic Electrical Characteristics
VCC
PI3DBV40
T1R1
S1
HP11667A 50Ω10pF
HP4195A
Test Switch
tPLZ, tPZL (output on B-side) 6.0V
tPHZ, tPZH (output on B-side) GND
Prop Delay Open
5PS8709 12/05/03
PI3DBV40
3.3V, Wide Bandwidth, 4-Channel, 2:1,
Mux/Demux Video Switch with Single Enable
Voltage Waveforms Propagation Delay Times
Switching Waveforms
Output Skew - tSK(o) Pulse Skew - tSK(p)
Voltage Waveforms Enable and Disable Times
Data In
Data Out
at Channel X
Data Out
at Channel Y
tPLHX tPHLX
3.5V
2.5V
2.5V
2.5V
I
tSK(o) = I tPLHy – tPLHx I or I tPHLy – tPHLx I
tSK(o)
tPLHy tPHLy
VOH
VOL
VOL
VOH
1.5V
Input
Output
tPLH
tSK(p) = I tPHL – tPLH I
tPHL
3.5V
2.5V
2.5V
VOL
VOH
1.5V
tPLZ
1.25V
1.25V
2.5V
VOH
0V
VOL
VDD/2
VDD/2
tPHZ
tPZL
tPZH
Output
Output
VOL +0.3V
VOH –0.3V
VOL
VOH
SEL
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 VCC before applying signals to
the input/output or control pins.
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd
Input
tPLH
2.5V 2.5V
2.5V 2.5V
tPHL
3.5V
1.5V
Output
VOH
V
OL
6PS8709 12/05/03
PI3DBV40
3.3V, Wide Bandwidth, 4-Channel, 2:1,
Mux/Demux Video Switch with Single Enable
Packaging Mechanical: 48-Pin TSSOP (A)
Ordering Information
Notes:
1. Thermal characteristics can be found on the company web site at http://www.pericom.com/packaging/
Ordering Code Package Code Package Type
PI3DBV40A A 48-pin 240 mil wide plastic TSSOP (A)
PI3DBV40AE A Pb-free, 48-pin 240 mil wide plastic TSSOP (A)
Pericom Semiconductor Corporation • 1-800-435-2336 • http://www.pericom.com