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PI3A212S Small Plastic Package, Dual SPDT Audio Clickless Analog Switch (with Shunt Switches)
Features
* * * * * * CMOS Technology for Bus and Analog Applications Low On-Resistance: 0.6 @ 2.7V Wide VCC Range: 2.7V TO 4.2V 10% Rail-to-Rail Signal Range High Off Isolation: -80dB @ 100 kHz Crosstalk Rejection Reduces Signal Distortion: -90dB @ 100 kHz * Break-Before-Make Switching * Extended Industrial Temperature Range: -40C to 85C * Packaging: Pb-free & Green, 10-contact TQFN (ZL10)
Description
Pericom Semiconductor's PI3A212S 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 PI3A212S has a low On-Resistance of 0.6 @ 2.7V. Break-before-make switching prevents both switches being enabled simultaneously. This eliminates signal disruption during switching. The PI3A212S shunt switches connected to ground in order to dissipate capacitance that builds up on the unconnected NC or NO line. As a result, reduction of popping and clicking sounds is achieved when switching between audio sources.
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
Functional Block Diagram Only
NO2
NO1
COM2
SHUNT SWITCH
COM1
NC2
NC1
Pin Description
Pin # 2,5 9 7, 10 3 1, 6 4, 8 Name NOX VCC NCX GND COMX INX Description Data Port (Normally open) Positive Power Supply Data Port (Normally closed) Ground Common Output/Data Port Logic Control
IN2
IN1
Pin Configuration (top view)
COM2
6
Logic Function Table
Logic Input (INX) 0 1
Note: x = 1, or 2
NC2
7
Function NCX Connected to COMX NOX Connected to COMX
IN1 VCC NC1
8 9 10
1
2
5 4 3
NO2 IN2 GND
06-0096
1
COM1
NO1
PS8821B
07/05/06
Small Plastic Package, Dual SPDT Audio Clickless Analog Switch (with Shunt Switches)
PI3A212S
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 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 .................................. 180mW
Recommended Operating Conditions(3)
Supply Voltage Operating (VCC) . . . . . . . . . . . . . 2.7V to 4.2V 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
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 input and output diode current ratings are observed. 3. Control input must be held HIGH or LOW; it must not float.
06-0096
2
PS8821B
07/05/06
Small Plastic Package, Dual SPDT Audio Clickless Analog Switch (with Shunt Switches)
PI3A212S
DC Electrical Characteristics +3V Supply
Parameter 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
Analog Switch
Analog Signal Range NC On-Resistance NO On-Resistance On-Resistance Match Between Channels NC On-Resistance Flatness NO On-Resistance Flatness Shunt Switch Resistance COM On Leakage Current VNO , VNC , VCOM RON(NC) RON(NO) RON RONF(NC) RONF(NO) RSH ICOM (ON) VCC = 2.7V, ICOM = 100mA, VNC = 0 toVCC 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 INO or INC = 10mA, VCC = 2.7V VCC = 2.7V, VNC or VNO = 0.3V, +2.5V, VCOM = +2.5V, 0.3V -160 -0.3 0.6 0.6 0.01 .15 .15 35 160 nA VCC 0.8 0.8 0.08 V
Digital I/O
Input Logic High Input Logic Low IN Input Leakage Current VIH VIL IIN VCC = 2.7V to 3.3V VCC = 4.2V VCC = 2.7V to 3.3V VCC = 4.2V VIN = 0 or VCC -0.5 1.3 1.4 0.6 0.8 0.5 A V
Power Supply
Power-Supply Range Supply Current VCC ICC VCC = 4.2V, VIN = 0 or VCC 2.7 4.6 400 V nA
06-0096
3
PS8821B
07/05/06
Small Plastic Package, Dual SPDT Audio Clickless Analog Switch (with Shunt Switches)
PI3A212S
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 Fig. 1 & 2 VCC = 2.7V, VNO or VNC = 1.5V, RL = 50, CL = 35pF, See Test Circuit Fig. 1 & 2 VCC = 2.7V, VNO or VNC = 1.5V, RL = 50, CL = 35pF, See Test Circuit Fig. 3 COM = 0, RS = 0, CL = 1nF, See Test Circuit Fig. 4 CL = 5pF, RL = 50, f = 100kHz, VCOM = 1 VRMS, See Test Circuit Fig. 5 CL = 5pF, RL = 50, f = 100kHz, VCOM = 1 VRMS, See Test Circuit Fig. 6 See Test Circuit Fig. 9
Min.
Typ.
25
Max.
Units
Turn-Off Time Break-Before-Make Delay Charge Injection Off-Isolation Crosstalk 3dB Bandwidth
tOFF
10
ns
tBBM Q OIRR XTALK f3dB
20 55 -80 dB -90 60 MHz pC
Capacitance
Parameter NC On Capacitance NO On Capacitance Symbol CNC (ON) CNO (ON) Test Conditions f = 1MHz, See Test Circuit Fig. 8 f = 1MHz, See Test Circuit Fig. 8 Min. Typ. 95 95 Max. Units pF
06-0096
4
PS8821B
07/05/06
Small Plastic Package, Dual SPDT Audio Clickless Analog Switch (with Shunt Switches)
PI3A212S
Test Circuits and Timing Diagrams
VCC VCC COM
RL IN LOGIC INPUT GND
VN
NC or NO
VOUT CL
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 * 1.5V for 3.3V Supply 90%
tr < 5ns tf < 5ns
Switch Output 0V
Figure 2. AC Waveforms

Figure 3. Break Before Make Interval Timing
06-0096
5
PS8821B
07/05/06
Small Plastic Package, Dual SPDT Audio Clickless Analog Switch (with Shunt Switches)
PI3A212S
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
Note: 1. Crosstalk measured from one channel to the pins of the other channel.
Figure 6. Crosstalk
VCC 10nF
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
06-0096
6
PS8821B
07/05/06
Small Plastic Package, Dual SPDT Audio Clickless Analog Switch (with Shunt Switches)
PI3A212S
VCC 10nF
50
Signal Generator
Logic Input 0V or VIH
NC or NO IN
VCC
COM
ANALYZER
50
GND
Figure 9. Bandwidth
06-0096
7
PS8821B
07/05/06
Small Plastic Package, Dual SPDT Audio Clickless Analog Switch (with Shunt Switches)
PI3A212S

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 PI3A212SZLE Packaging Code ZL Package Type Pb-free & Green, 10-contact TQFN Top Mark SC
Notes: * Thermal characteristics can be found on the company web site at www.pericom.com/packaging/ * E = Pb-free & Green * Adding an X suffix = Tape/Reel
Pericom Semiconductor Corporation * 1-800-435-2336 * www.pericom.com
06-0096
8
PS8821B
07/05/06

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