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PI3A212
Small Plastic Package, Dual SPDT Analog Switch
Features
* * * * * * CMOS Technology for Bus and Analog Applications Low On-Resistance: 0.6. Wide VCC Range: 2.7V to 4.2V 10% Rail-to-Rail Signal Range High Off Isolation: -75dB @ 100kHz Crosstalk Rejection Reduces Signal Distortion: -90dB @ 100kHz * Break-Before-Make Switching * Extended Industrial Temperature Range: -40C to 85C * Packaging (Pb-free & Green): 10-contact TQFN (ZL10)
Description
Pericom Semiconductor's PI3A212 is a dual high-bandwidth, fast single-pole double throw (SPDT) CMOS switch. It can be used as an analog switch or as a low-delay bus switch. Specified over a wide operating power supply voltage, 2.7V to 4.2V, the PI3A212 has an On-Resistance of 0.6 at +2.7V. Break-before-make switching prevents both switches being enabled simultaneously. This eliminates signal disruption during switching.
Functional Block Diagram
Applications
* * * * * * * * * * * Cell Phones PDAs MP3 players Portable Instrumentation Computer Peripherals Speaker Headset Switching Power Routing Relay Replacement Audio and Video Signal Routing PCMCIA Cards Modems
NC1
NC2
IN1
IN2
COM1
COM2
NO1
NO2
Pin Description
Pin # 5, 2 3 10, 7 6, 1 9 4, 8 Name NOX GND NCX COMX VCC INX Description Data Port (Normally open) Ground Data Port (Normally closed) Common Output / Data Port Postive Power Supply Logic Control
Pin Configuration (top view)

Logic Function Table
Logic Input (INX) 0 1
Note: x = 1 or 2
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Function NCX Connected to COMX NOX Connected to COMX
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PS8802E
07/06/06
PI3A212 Small Plastic Package, Dual SPDT Analog Switch Absolute Maximum Ratings(1)
Supply Voltage VCC ........................................... -0.5V to 4.6V DC Switch Voltage (VS)(2) ........................ -0.5V to VCC +0.5V DC Input Voltage (VIN)(2) .................................. -0.5V to 4.6V Continuous Current NO_NC_COM_ .............................. 300mA Peak Current NO_NC_COM_ (pulsed at 1ms 50% duty cycle) ............................... 400mA Peak Current NO_NC_COM_ (pulsed at 1ms 10% duty cycle) ............................... 500mA Storage Temperature Range (TSTG) .............. -65C to +150C Junction Temperature under Bias (TJ) .............................150C Junction Lead Temperature (TL) (Soldering, 10 seconds) ................................................260C Power Dissipation (PD) @ +85C .................................. 250mW
Recommended Operating Conditions(3)
Supply Voltage Operating (VCC) . . . . . . . . 2.7V to 4.2V 10% Control Input Voltage (VIN) . . . . . . . . . . . . . . . . . . . 0V to VCC Switch Input Voltage (VIN) . . . . . . . . . . . . . . . . . . -0.3V to VCC Output Voltage (VOUT) . . . . . . . . . . . . . . . . . . . . . . . 0V to VCC Operating Temperature (TA) . . . . . . . . . . . . . . . -40C to +85C Input Rise and Fall Time (tr,tf) Control Input VCC = 2.3V - 3.6V. . . . . . . . . 0ns/V to 10ns/V Thermal Resistance (JA) . . . . . . . . . . . . . . . . . . . . . . 350C/W Lead Temperature (soldering 10s) . . . . . . . . . . . . . . . . . +300C Bump Temperature (soldering notes) Infared (15s). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +220C Vapor Phase (60ns) . . . . . . . . . . . . . . . . . . . . . . . . . . +215C
Notes: 1. "Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress only rating and operation of the device at these or any other conditions beyond those indicated in the operational sections of this specification is not implied. 2. The input and output negative voltage ratings may be exceeded if the inut and output diode current ratings are observed. 3. Control input must be held HIGH or LOW; it must not float.
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PI3A212 Small Plastic Package, Dual SPDT Analog Switch DC Electrical Characteristics +3V Supply
Parameter Analog Switch Analog Signal Range NC On-Resistance NO On-Resistance VNO , VNC , VCOM RON(NC) RON(NO) VCC = 2.7V, ICOM = 100mA, VNC = 0 to VCC VCC = 2.7V, ICOM = 100mA, VNO = 0 to VCC VCC = 2.7V, ICOM = 100mA, VNO or VNC = 1.5V VCC = 2.7V, ICOM = 100mA, VNC = 0 to VCC VCC = 2.7V, ICOM = 100mA, VNO = 0 to VCC VCC = 3.3V, VNO or VNC = 3V, 0.3V, VCOM = 0.3V, 3V VCC = 3.3V, VNO or VNC = 3V, 0.3V, VCOM = 3V, 0.3V, or floating -400 -160 -0.3 0.6 0.6 0.01 VCC 0.8 0.8 0.06 0.2 0.2 400 nA 160 V Symbol
(VCC = 2.7V to 3.3V, TA = -40C to 85C, unless otherwise noted. Typical values are at 3V and +25C.) Test Conditions Min. Typ. Max. Units
On-Resistance Match RON Between Channels NC On-Resistance Flatness NO On-Resistance Flatness NO or NC Off Leakage Current COM On Leakage Current Digital I/O Input Logic High Input Logic Low Input Hysteresis IN Input Leakage Current Supply Current VIH VIL VH IIN ICC RONF(NC) RONF(NO) IOFF (NO) or IOFF (NC) ICOM (ON)
1.3 0.6 VCC = 3.3V VIN = 0 or VCC VCC = 3.6V, VIN = 0 or VCC -0.5 100 100 0.5 250
V mV A nA
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PI3A212 Small Plastic Package, Dual SPDT Analog Switch Switch and AC Characteristics
Parameter Turn-On Time Symbol tON Test Conditions VCC = 2.7V, VNO or VNC = 1.5V, RL = 50, CL = 35pF, See Test Circuit Figure 1 & 2. VCC = 2.7V, VNO or VNC = 1.5V, RL = 50, CL = 35pF, See Test Circuit Figure 1 & 2. VCC = 2.7V, VNO or VNC = 1.5V, RL = 50, CL = 35pF, See Test Circuit Figure 3. COM = 0, RS = 0, CL = 1nF, See Test Circuit Figure 4. CL = 5pF, RL = 50, f = 100kHz, VCOM = 1 VRMS, See Test Circuit Figure 5. CL = 5pF, RL = 50, f = 100kHz, VCOM = 1 VRMS, See Test Circuit Figure 6. See Test Circuit Figure 9. 55 -75 dB -90 60 MHz Min. Typ. 15 Max. 25 Units
Turn-Off Time Break-Before-Make Delay Charge Injection Off-Isolation
tOFF
4
10
ns
tBBM Q OIRR
20 pC
Crosstalk 3dB Bandwidth
XTALK f3dB
Capacitance
Parameter NC Off Capacitance NO Off Capacitance NC On Capacitance NO On Capacitance Symbol CNC (OFF) CNO (OFF) CNC (ON) CNO (ON) Test Conditions f = 1MHz, See Test Circuit Figure 7. f = 1MHz, See Test Circuit Figure 7. f = 1MHz, See Test Circuit Figure 8. f = 1MHz, See Test Circuit Figure 8. Min. Typ. 35 35 95 95 pF Max. Units
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PI3A212 Small Plastic Package, Dual SPDT Analog Switch Test Circuits and Timing Diagrams
VCC VCC COM RL IN LOGIC INPUT GND CL
VN
NC or NO
VOUT
50
35pF
CL INCLUDES FIXTURE AND STRAY CAPACITANCE.
Notes: 1. Unused input (NC or NO) must be grounded.
Figure 1. AC Test Circuit
Logic Input
VIH VIL Off 50% On VOUT Off tOFF 90% tON Logic Input Waveforms inverted for Switches that have opposite logic 90%
tr < 5ns tf < 5ns
Switch Output 0V
Figure 2. AC Waveforms

Figure 3. Break Before Make Interval Timing
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PS8802E
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PI3A212 Small Plastic Package, Dual SPDT Analog Switch
RGEN
NC or NO
COM CL 1nF
VOUT
Logic Input
OFF
ON
OFF
VGEN
IN Logic Input Q = (V OUT )(CL )
V OUT
Figure 4. Charge Injection Test
VCC 10nF
10nF VCC
50
Signal Generator
COM
VCC Logic Input 0V or VIH
50
IN
or NC
Signal Generator
NC NO
VCC
COM 50
NO
Analyzer
GND
Analyzer
GND
IN
CL 5pF
RL
50
CL 5pF
RL
50
Figure 5. Off Isolation
VCC 10nF
Figure 6. Crosstalk
VCC 10nF
COM Capacitance Meter f = 1 MHz NO
or NC
VCC Logic Input 0V or VIH
Capacitance Meter f = 1 MHz
IN
COM
VCC Logic Input 0V or VIH
IN NO
or NC
GND
GND
Figure 7. Channel Off Capacitance
Figure 8. Channel On Capacitance
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PS8802E
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PI3A212 Small Plastic Package, Dual SPDT Analog Switch
VCC 10nF
50
Signal Generator
Logic Input 0V or VIH
NC or NO IN
VCC
COM
ANALYZER
50
GND
Figure 9. Bandwidth
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PS8802E
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PI3A212 Small Plastic Package, Dual SPDT Analog Switch

DATE: 03/20/06

DESCRIPTION: 10-Contact, Thin Fine Pitch Quad Flat No-Lead (TQFN) PACKAGE CODE: ZL (ZL10) DOCUMENT CONTROL #: PD-2052 REVISION: A
Ordering Information
Ordering Code PI3A212ZLEX Packaging Code ZL Package Type Pb-free & Green, 10-contact TQFN Top Mark 2A
Notes: * Thermal characteristics can be found on the company web site at www.pericom.com/packaging/ * E = Pb-free & Green * X suffix = Tape/Reel
Pericom Semiconductor Corporation * 1-800-435-2336 * www.pericom.com
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