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PI3V312
Low On-Resistance, 3.3V High-Bandwidth 4-Port, 2:1 Mux/DeMux VideoSwitch
Features
* Near-Zero propagation delay * 5 switches connect inputs to outputs * High signal passing bandwidth (500MHz) * Beyond Rail-to-Rail switching * 5V I/O tolerant with 3.3V supply * 2.5V and 3.3V supply voltage operation * Hot insertion capable * Industrial operating temperature: -40C to +85C * 2KV ESD Protection (human body model) * Latch-up performance >250mA per JESD17 * Packaging (Pb-free & Green available): - 16-pin QSOP (Q) - 16-pin TSSOP (L) - 20-contact TQFN (ZH)
Description
Pericom Semiconductor's PI3V312 is a 4-port, 2:1 Multiplexer/ Demultiplexer with 3-state outputs. The switch introduces no additional ground bounce noise or propagation delay. Low On-Resistance and High bandwidth make it ideal for video and other applications. Also this device has exceptionally low crosstalk and off-isolation, which is far greater than most analog switches offered today. A single 3.3V supply is all that is required for operation. The PI3V312 offers a high-performance (500MHz), low-cost solution to switch between video signals that have high bandwidth.
Block Diagram
IA0 IA1 IB0 IB1 IC0 IC1 ID0 ID1
Pin Configuration
N.C.
1
VCC
20 19 18 17
S
IA0
1 2 3 4 5 6 7 8
16-pin L, Q
16 15 14 13 12 11 10 9
VCC EN
ID0 ID1
S
IA0
2 3 4 5 6 7 8 9
N.C. EN
ID0 ID1
EN
IA1
YA
IB0 IB1
IA1 YA
IB0 IB1
YD
IC0 IC1
20-Contact ZH
16 15 14 13 12
YD
IC0 IC1
S
YB GND
YC
YB N.C.
10
11
YC
GND
N.C.
YA
YB
YC
YD
Truth Table(1)
EN H L L S X L H YA Hi-Z IA0 IA1 YB Hi-Z IB0 IB1 YC Hi-Z IC0 IC1 YD Hi-Z ID0 ID1 Function Disable S=0 S=1
Pin Description
Pin Name
IA N
Description Data Inputs Select Inputs Enable Data Outputs Ground Power
to IDN
S EN YA to YD GND VCC
1
Notes: 1. H=High Voltage Level L=Low Voltage Level
PS8754A
11/02/04
PI3V312 Low On-Resistance, 3.3V High-Bandwidth 4-Port, 2:1 Mux/DeMux VideoSwitch Maximum Ratings
(Above which the useful life may be impaired. For user guidelines, not tested.)
Storage Temperature ................................................ -65C to +150C Ambient Temperature with Power Applied ............... -40C to +85C 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 reliability.
DC Electrical Characteristics, 3.3V Supply (Over Operating Range, TA = -40C to +85C, VCC = 3.3V 10%)
Parameters VIH VIL VIK IIH IIL IOZH RON 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 A V Typ(2) Max. Units Guaranteed Logic HIGH Level Guaranteed Logic LOW Level VCC = Min., IIN = -18 mA VCC = Max., VIN = VCC VCC = Max., VIN = GND VCC = Min., VIN = 0V, ION = 48 mA or -64mA VCC = Min., VIN = 3.6V, ION = -15 mA
High Impedance Output Current 0 Y, IN VCC Switch On-Resistance(4)
DC Electrical Characteristics, 2.5V Supply (Over Operating Range, TA = -40C to +85C, VCC = 2.5V 10%)
Parameters(5) Description Input HIGH Voltage Inout LOW Voltage Clamp Diode Voltage Input HIGH Current Input LOW Current High Impedance Current(3) Switch On-Resistance(4) Test Conditions Guaranteed Logic HIGH Level Guaranteed Logic LOW Level VCC = Max., IIN = -6mA VCC = Max., VIN = VCC VCC = Max., VIN = GND 0 Y, In VCC VCC = Min., VIN = 0V, ION = -48mA VCC = Min., VIN = 2.25V, ION = -15mA Min. 1.8 -0.3 - - - - - - Typ. - - -0.7 - - - 6 7 Max. VCC + 0.3 0.8 -1.8 1 1 1 8 14 A V Units VIH VIL VIK IIH IIL IOZH RON
2
PS8754A
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PI3V312 Low On-Resistance, 3.3V High-Bandwidth 4-Port, 2:1 Mux/DeMux VideoSwitch Capacitance (TA = 25C f = 1 MHz)
Parameters(5) CIN COFF(IN) COFF(Y) CON Description Input Capacitance In Capacitance, Switch Off Y Capacitance, Switch Off Y/In Capacitance, Switch On VIN = 0V Test Conditions Typ. 3.0 3.5 7.0 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 VCC = 3.3V, TA = 25C ambient and maximum loading. 3. Not more than one output should be shorted at one time. Duration of the test should not exceed one second. 4. 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. 5. This parameter is determined by device characterization but is not production tested.
Power Supply Characteristics
Parameters Description ICC Quiescent Power Supply Current
Test Conditions(1) VCC = 3.6V, VIN = GND or VCC
Min.
Typ.(2)
Max. 0.8
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 VCC = 3.3V, +25C ambient.
Dynamic Electrical Characteristics Over the Operating Range (TA = -40 to +85, VCC = 3.3V 10%)
Parameter XTALK OIRR BW Description Crosstalk Off-Isolation -3dB Bandwidth Test Condition See Test Diagram (f = 100MHz) See Test Diagram (f = 100MHz) See Test Diagram; CL = 0pF 100 Min. Typ. -60 -60 500 Max. Units dB MHz
3
PS8754A
11/02/04
PI3V312 Low On-Resistance, 3.3V High-Bandwidth 4-Port, 2:1 Mux/DeMux VideoSwitch Switching Characteristics over 3.3V Operating Range
Parameters tPLH tPHL tPZH tPZL tPHZ tPLZ 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. Typ. Max. 0.3 9.0 ns Units
Switching Characteristics over 2.5V Operating Range
Parameters tPLH tPHL tPZH tPZL tPHZ tPLZ 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
600 3db Bandwidth 500 400 300 200 100 0 0 pf 10 pf 20 pf 30 pf 40 pf 50 pf Capacitance Load
4
PS8754A
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PI3V312 Low On-Resistance, 3.3V High-Bandwidth 4-Port, 2:1 Mux/DeMux VideoSwitch Test Circuit for Electrical Characteristics(1)
VCC 200-ohm Pulse Generator VIN RT D.U.T VOUT 10pF CL 200-ohm 6.0V
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 = 50, tR 2.5ns, tF 2.5ns. 5. The outputs are measured one at a time with one transition per measurement.
Switch Positions
Test tPLZ, tPZL tPHZ, tPZH Prop Delay Switch 6.0V GND Open
Test Circuit for Dynamic Electrical Characteristics
HP4396
S1
R1
T1
VCC HP11667A
D.U.T CL
5
PS8754A
11/02/04
PI3V312 Low On-Resistance, 3.3V High-Bandwidth 4-Port, 2:1 Mux/DeMux VideoSwitch Crosstalk (VCC = 3.3V, 25C)
Network A:REF 0.000 [ dB ] Cor B:REF 180.0 [ deg ] MKR T/R 0 10,081,529.565 Hz -53.7271dB deg
-0 -10 -20 -30 -40 -50 -60 -70 -80 -90 -100
DIV 36.00 RBW: 300 Hz, ST: 13.7 sec
10 MHz
Start = 1 KHz Stop = 500 MHz
Off Isolation (VCC = 3.3V, 25C)
Network A:REF 0.000 [ dB ] Cor B:REF 180.0 [ deg ] MKR T/R 0 10,081,529.565 Hz -66.5818 dB deg
-0 -10 -20 -30 -40 -50 -60 -70 -80 -90 -100
DIV 36.00 ABW: 300 Hz ST: 13.7 sec
10 MHz
Start = 1 KHz Stop = 500 MHz
6
PS8754A
11/02/04
PI3V312 Low On-Resistance, 3.3V High-Bandwidth 4-Port, 2:1 Mux/DeMux VideoSwitch Switching Waveforms
ENx
2.5V
1.25V
1.25V 0V
3.5V Input tPLH
Output
2.5V
2.5V tPHL 2.5V 2.5V
VOL
Output
tPZL
VDD/2
tPLZ
VOH
1.5V
VOH
Output
tPZH
VOL +0.3V
tPHZ
VOL
VOH
VDD/2
VOH -0.3V
VOL
Voltage Waveforms Enable and Disable Times
3.5V Input tPLH tPHL 2.5V
1.5V VOH
Output tSK(p) = I tPHL - tPLH I
2.5V
VOL
Pulse Skew - tSK(p)
7
PS8754A
11/02/04
PI3V312 Low On-Resistance, 3.3V High-Bandwidth 4-Port, 2:1 Mux/DeMux VideoSwitch Applications Information Logic Inputs
The logic control inputs can be driven upto 3.6V regardless of the supply voltage. For example, given a +3.3V supply, EN maybe driven LOW to 0V and HIGH to 3.6V. Driving EN Rail-to-Rail(R) minimizes power consumption.
Power Supply-Sequencing
Proper power supply sequencing is recommended for all CMOS devices. Always apply VCC before applying signals to the input/ output or control pins.
Hot Insertion
For Datacom and Telecom applications that have ten or more volts passing through the backplane, a high voltage from the power supply may be seen at the device input pins during hot insertion. The PI3V312 device have maximum limits of 6V and 120mA for 20ns. If the power is higher or applied for a longer time or repeatedly reaches the maximum limits, the devices can be damaged.
Packaging Mechanical: 16-pin QSOP (Q)
16
.008 0.20 MIN.
.150 .157
3.81 3.99
.008 .013 0.20 0.33
Guage Plane
.010 0.254
1
.189 .197 4.80 5.00
Detail A
.016 .035 0.41 0.89
.041 1.04 REF
0-6
.015 x 45 0.38
.053 1.35 .069 1.75
Detail A
.008 0.203 REF
.007 .010
0.178 0.254
SEATING PLANE
.004 0.101 .010 0.254
0.41 .016 1.27 .050
.228 .244 5.79 6.19
.025 BSC 0.635
.008 .012 0.203 0.305
X.XX DENOTES DIMENSIONS IN MILLIMETERS X.XX
8
PS8754A
11/02/04
PI3V312 Low On-Resistance, 3.3V High-Bandwidth 4-Port, 2:1 Mux/DeMux VideoSwitch Packaging Mechanical: 16-pin TSSOP (L)
16
.169 .177
4.3 4.5
1
.193 .201 4.9 5.1
.004 .008
0.09 0.20
.047 max. 1.20
SEATING PLANE
0.45 .018 0.75 .030
.252 BSC 6.4
.0256 BSC 0.65
.007 .012
.002 .006
0.05 0.15
0.19 0.30
X.XX DENOTES CONTROLLING X.XX DIMENSIONS IN MILLIMETERS
Packaging Mechanical: 20-Contact TQFN (ZH)
4.500.10 (S)
0.750.05
3.50 REF.
Pin 20
3.500.10
3.050.10 1.50 REF. 2.050.10
Pin 1
C 0.35
0.0-0.05
0.400.10
0.50 TYP. (14X)
0.250.05
0.20 REF.
9
PS8754A
11/02/04
PI3V312 Low On-Resistance, 3.3V High-Bandwidth 4-Port, 2:1 Mux/DeMux VideoSwitch Ordering Information
Ordering Code PI3V312Q PI3V312QE PI3V312L PI3V312LE PI3V312ZHE Packaging Code Q Q L L ZH Package Description 150-mil, 16-pin QSOP Pb-free & Green, 150-mil, 16-pin QSOP 173-mil, 16-pin TSSOP Pb-free & Green, 173-mil, 16-pin TSSOP Pb-free & Green, 20-contact TQFN
Notes: 1. Thermal characteristics can be found on the company web site at www.pericom.com/packaging/ 2. Number of Transistors = TBD
Pericom Semiconductor Corporation * 1-800-435-2336 * www.pericom.com
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PS8754A 11/02/04

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