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Pericom Semiconductor Corporation

PI3A268SC Datasheet Preview

PI3A268SC Datasheet

Dual SPDT

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PI3A268SC
Dual SPDT Analog Switch with -1.5V Signal Support,
and Integrated Pop-Sound Elimination Circuit
Features
• CMOS Technology for Bus and Analog Applications
• Low On-Resistance: 0.6Ω.
• Wide VDD Range: 2.8 to 4.2
• High Off Isolation: -80dB @ 100kHz
• Crosstalk Rejection Reduces Signal Distortion:
-80dB @ 100kHz
• Input signals can be from -1.5V up to VDD without
distortion.
• Break-Before-Make Switching
• Extended Industrial Temperature Range: –40°C to 85°C
• Packaging (Pb-free & Green):
–10-contact TQFN (ZM10) 1.4 × 1.8
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
Description
Pericom Semiconductor's PI3A268SC is a dual, fast single-pole
double throw (SPDT) CMOS switch. It can be used as an analog
switch or as a low-delay bus switch.
Break-before-make switching prevents both switches being en-
abled simultaneously. This eliminates signal disruption during
switching.
With the use of 3rd party headsets, AC coupling is required to
protect against EOS damage caused by DC offsets. Pericom’s
PI3A268SC can support these AC coupled audio signals, since
the switch can tolerate signals down to -1.5V without a negative
power supply.
Functional Block Diagram
NO2
COM2
NC2
IN2
SHUNT
SWITCH
NO1
COM1
NC1
IN1
Pin Description
Pin #
1, 3
4
Name
NOX
GND
2, 10
5, 8
9
6, 7
NCX
COMX
VDD
INX
Description
Data Port (Normally open)
Ground
Data Port (Normally closed)
Common Output / Data Port
Positive Power Supply
Logic Control
Logic Function Table
Logic Input (INX)
0
1
Note: x = 1 or 2
Function
NCX Connected to COMX
NOX Connected to COMX
09-0058
Pin Conguration (top view)
NO1
NC2
10 9 8
17
26
345
IN1
IN2
1
PS9052
03/26/09




Pericom Semiconductor Corporation

PI3A268SC Datasheet Preview

PI3A268SC Datasheet

Dual SPDT

No Preview Available !

www.DataSheet4U.com
PI3A268SC
Dual SPDT Analog Switch with -1.5V Signal Support,
and Integrated Pop-Sound Elimination Circuit
Absolute Maximum Ratings(1)
Supply Voltage VDD ............................................. 2.5V to 4.6V
DC Control Switch Voltage (VINX) .......................... 0V to 5.0V
DC Input Voltage (VIN)(2) ....................................–1.5V to VDD
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) .............. –65°C to +150°C
Junction Temperature under Bias (TJ) .............................150°C
Junction Lead Temperature (TL)
(Soldering, 10 seconds) ................................................260°C
Recommended Operating Conditions(3)
Supply Voltage Operating (VDD) . . . . . . . . . 2.8V to 4.2V ± 5%
Control Input Voltage (VIN) . . . . . . . . . . . . . . . . . . . .0V to VDD
Switch Input Voltage (VINPUT) . . . . . . . . . . . . . . . -1.5V to VDD
Operating Temperature (TA) . . . . . . . . . . . . . . . –40°C to +85°C
Input Rise and Fall Time (tr,tf)
Control Input VDD = 2.3V - 3.6V . . . . . . . . 0ns/V to 10ns/V
Thermal Resistance (JA) . . . . . . . . . . . . . . . . . . . . . . . 350°C/W
Lead Temperature (soldering 10s) . . . . . . . . . . . . . . . . . +300°C
Bump Temperature (soldering notes)
Infared (15s). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +220°C
Vapor Phase (60ns) . . . . . . . . . . . . . . . . . . . . . . . . . . +215°C
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 specication 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 oat.
Power Supply
Parameter
Supply Current
Symbol
ICC
Test Conditions
VDD = 2.7V, VIN = 0V to VDD
VDD = 3.3V, VIN = 0V to VDD
VDD = 4.2V, VIN = 0V to VDD
Min Typ Max Units
20 μA
36 μA
80 μA
09-0058
2
PS9052
03/26/09


Part Number PI3A268SC
Description Dual SPDT
Maker Pericom Semiconductor Corporation
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