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PI3DBV40
3.3V, Wide Bandwidth, 4-Channel, 2:1 Mux/DeMux Video Switch with Single Enable
Features
* * * * * * * * * * * RON is 4 typical Low bit-to-bit skew: 200ps Low crosstalk: -27dB @ 250MHz Low Current Consumption: 20A Near-Zero propagation delay: 250ps Switching speed: 9ns Channel On-Capacitance: 9.5pF (typical) VCC 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
Y0 Y1
0I1 1I1 0I2 1I2
Pin Description
V DD Y0 GND Y1 GND V DD GND Y2 GND Y3 GND V DD GND NC Y4 GND Y5 GND V DD GND Y6 GND Y7 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
0I1 1I 1
GND
0I 2 1I 2
Y2 Y3
2I1 3I1 2I2 3I2
GND
2I1 3I1
GND
2I2 3I2
Y4 Y5
4I1 5I1 4I2 5I2
GND V DD
4 I1 5I1
Y6 Y7
6I1 7I1 6I2 7I2
GND
4I2 5I2
GND
6I1 7I1
SEL
GND
6I2 7I2
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 YN to NI1 YN to NI2 SEL L H
(Above which useful life may be impaired. For user guidelines, not tested.) Storage Temperature....................................-65C to +150C 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.
DC Electrical Characteristics for Video Switching over Operating Range
(TA = -40C to +85C, VCC = 3.3V 10%) Paramenter VIH VIL VIK IIH IIL IOFF RON RFLAT(ON) RON 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 VCC = Max., IIN = -18mA VCC = Max., VIN = VCC VCC = Max., VIN = GND VCC = 0V, VY = 0V, VI 3.6 VCC = Min., 1.5V VIN VCC, IIN = -40mA VCC = Min., VIN @ 1.5V and VCC, IIN = -40mA VCC = Min., 1.5V VIN VCC, IIN = -40mA Min. 2 -0.5 Typ.(2) -0.7 4 1 0.9 Max. 0.8 -1.2 5 5 5 8 2 A V Units
2
PS8709B
07/22/04
PI3DBV40 3.3V, Wide Bandwidth, 4-Channel, 2:1 Mux/DeMux Video Switch with Single Enable Capacitance (TA = 25C, f = 1MHz)
Parameters(4) Description Input Capacitance Port I Capacitance, Switch OFF Switch Capacitance, Switch ON VIN = 0V Test Conditions Typ. 3.1 2.8 9.5(5) Max. 3.6 6.0 10.9 pF Units CIN COFF CON
Notes: 1. For max. or min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type. 2. Typical values are at VCC = 3.3V, TA = 25C 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 ICC Description Quiescent Power Supply Current
Test Conditions(1) VCC = Max., VIN = GND or VCC
Min. -
Typ.(2) -
Max. 800
Units A
Notes: 1. For max. or min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type. 2. Typical values are at VCC = 3.3V, TA = 25C ambient and maximum loading.
Dynamic Electrical Characteristics Over the Operating Range (TA=-40 to +85C, VCC=3.3V10%, GND=0V)
Parameter XTALK OIRR 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 tPD tPZH, tPZL tPHZ, tPLZ tSK(o) tSK(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 (tPHL - tPLH) (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 VCC
200-ohm Pulse Generator VIN D.U.T RT VOUT 10pF CL
200-ohm
Notes: 1. CL = Load capacitance: includes jig and probe capacitance. 2. RT = Termination resistance: should be equal to ZOUT of the Pulse Generator 3. All input impulses are supplied by generators having the following characteristics: f = 10 MHz, ZO = 50, tR 2.5ns, tF 2.5ns. 4. The outputs are measured one at a time with one transition per measurement.
Switch Positions
Test tPLZ, tPZL (output on I-side) tPHZ, tPZH (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
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PS8709B
07/22/04
PI3DBV40 3.3V, Wide Bandwidth, 4-Channel, 2:1 Mux/DeMux Video Switch with Single Enable
700
600
500
BW in MHZ
400
300
200
100
0 0 10 20 30 CL in pF 40 50 60
Figure 4. 3DVB40 -3dB Bandwidth versus CL
6
PS8709B
07/22/04
PI3DBV40 3.3V, Wide Bandwidth, 4-Channel, 2:1 Mux/DeMux Video Switch with Single Enable Switching Waveforms
SEL
2.5V
1.25V
3.5V Input tPLH 2.5V 2.5V tPHL 2.5V 2.5V
1.25V 0V
1.5V
Output
tPZL
VDD/2
tPLZ
VOH
Output
VOH
VOL +0.3V
tPZH
VDD/2
tPHZ
VOH -0.3V
VOL
VOH
VOL
VOL
Output
Voltage Waveforms Propagation Delay Times
3.5V 2.5V Data In tPLHX tPHLX
1.5V VOH
Voltage Waveforms Enable and Disable Times
3.5V Input tPLH tPHL 2.5V
1.5V VOH
2.5V Data Out at Channel X
I tSK(o)
VOL VOH
Data Out at Channel Y
tPLHy tPHLy
2.5V
VOL
Output tSK(p) = I tPHL - tPLH I
2.5V
VOL
tSK(o) = I tPLHy - tPLHx I or I tPHLy - tPHLx I
Output Skew - tSK(o)
Pulse Skew - tSK(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(R) 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
7
PS8709B
07/22/04
PI3DBV40 3.3V, Wide Bandwidth, 4-Channel, 2:1 Mux/DeMux Video Switch with Single Enable Packaging Mechanical: 48-Pin TSSOP (A)
48
.236 .244
6.0 6.2
1
.488 12.4 .496 12.6
.047 1.20 Max
SEATING PLANE
.004 0.09 .008 0.20
0.45 .018 0.75 .030
X.XX X.XX
DENOTES DIMENSIONS IN MILLIMETERS
.0197 BSC 0.50
.007 .010
0.17 0.27
.002 .006 0.05 0.15
.319 BSC 8.1
Ordering Information
Ordering Code PI3DBV40A PI3DBV40AE Package Code A A Package Description 48-pin 240 mil wide plastic TSSOP Pb-free, 48-pin 240 mil wide plastic TSSOP
Notes: 1. Thermal characteristics can be found on the company web site at www.pericom.com/packaging/.
Pericom Semiconductor Corporation * 1-800-435-2336 * www.pericom.com
8
PS8709B 07/22/04

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