pi3a268c Pericom Semiconductor Corporation, pi3a268c Datasheet

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pi3a268c

Manufacturer Part Number
pi3a268c
Description
Dual Spdt With 0.6-ohm Ron And -1.5v Support
Manufacturer
Pericom Semiconductor Corporation
Datasheet
Features
• CMOS Technology for Bus and Analog Applications
• Low On-Resistance: 0.6Ω.
• Wide V
• High Off Isolation: -80dB @ 100kHz
• Crosstalk Re jec tion Reduces Signal Distortion:
• Input signals can be from -1.5V up to V
• Break-Before-Make Switching
• Extended Industrial Temperature Range: –40
• Packaging (Pb-free & Green):
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
Pin Description
Logic Function Table
Note: x = 1 or 2
Pin #
2, 10
Logic Input (IN
1, 3
5, 8
6, 7
4
9
09-0103
–72dB @ 100kHz
–10-contact UQFN (ZM10) 1.4 × 1.8
DD
0
1
Range: 2.5V to 4.2V
COM
Name
GND
NO
NC
V
IN
DD
X
X
X
X
X
)
Data Port (Normally open)
Ground
Data Port (Normally closed)
Common Output / Data Port
Positive Power Supply
Logic Control
NC
NO
X
X
Small Plastic Package, Dual SPDT An a log Switch with -1.5V Signal
Connected to COM
Connected to COM
Support for AC Coupled Audio Signals and D-Class Audio Signals
Description
Function
DD
without distortion.
°
C to 85
X
X
°
C
1
Description
Pericom Semiconductor's PI3A268C 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 enabled
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
PI3A268C 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
Pin Confi guration (top view)
NO
COM
NC
IN
2
2
2
2
NO1
NC2
1
2
10
3 4 5
9
8
7
6
PI3A268C
IN1
IN2
PS8935B
NO
COM
NC
IN
1
1
1
1
12/15/09

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pi3a268c Summary of contents

Page 1

... 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 without distortion. DD PI3A268C can support these AC coupled audio signals, since the switch can tolerate signals down to -1.5V without a negative ° ° power supply ...

Page 2

... Bump Temperature (soldering notes) ) .............................150°C J Infared (15s +220°C Vapor Phase (60ns +215°C = 2.7V 3.3V 4.2V PI3A268C ( 2. -1. INPUT ) . . . . . . . . . . . . . . . –40°C to +85° 2. 0ns/V to 10ns 350°C/W JA Min ...

Page 3

... Load = 8Ω pulled to GND 2.7V, freq = DD 20Hz to 20KHz, Vinput = 2V PP Load = 16Ω pulled to GND 2.7V, freq = DD 20Hz to 20KHz, Vinput = 2. Min. Typ. -1.5 0.9 0.9 0.1 0.25 0.25 -400 = 3V, COM -250 0.035 0.025 1.3 100 -0.5 PI3A268C Max. Units Ω 400 nA 250 % V 0.6 mV 0.5 μA PS8935B 12/15/09 ...

Page 4

... Load = 8Ω pulled to GND 2.7V, freq = DD 20Hz to 20KHz, Vinput = 2V PP Load = 16Ω pulled to GND 2.7V, freq = DD 20Hz to 20KHz, Vinput = 2. Min. Typ. -1.5 0.7 0.7 0.1 0.2 0.2 -400 = 3V, COM -250 0.04 0.035 1.3 100 -0.5 PI3A268C Max. Units Ω 400 nA 250 % V 0.6 mV 0.5 μA PS8935B 12/15/09 ...

Page 5

... Load = 8Ω pulled to GND 3.3V, freq = DD 20Hz to 20KHz, Vinput = 2V PP Load = 16Ω pulled to GND, V =3V, freq = 20Hz DD to 20KHz, Vinput = 4. Min. Typ. -1.5 0.6 0.6 0.1 0.2 0.2 -700 = 3V, COM -550 0.025 0.02 1.3 150 -0.5 PI3A268C Max. Units Ω 700 nA 550 % V 0.6 mV 0.5 μA PS8935B 12/15/09 ...

Page 6

... See Test Circuit Figure 1MHz, See Test Circuit Figure 1MHz, See Test Circuit Figure 1MHz, See Test Circuit Figure 8. 6 Min. Typ 2.5V to -80 = 2.5V to -72 100 Min. Typ. Max PI3A268C Max. Units MHz Units pF PS8935B 12/15/09 ...

Page 7

... Logic Input Waveforms inverted for Switches that have opposite logic Figure 2. AC Waveforms V OUT 50-Ohm 35pF Figure 3. Break Before Make Interval Timing 7 V OUT -Ohm 35pF t < 5ns r t < 5ns f Off t OFF 90% 50% Logic Input V OUT 0 BBM PI3A268C OUT PS8935B 12/15/09 ...

Page 8

... MHz Logic Input OFF ON OFF )(C ) OUT 10nF V DD COM NC NO Analyzer GND 5pF Figure 6. Crosstalk V DD 10nF V DD COM GND Figure 8. Channel On Capacitance PI3A268C OUT Logic Input PS8935B 12/15/09 ...

Page 9

... Signal Generator Logic Input 09-0103 Small Plastic Package, Dual SPDT Analog Switch with -1.5V Signal Support for AC Coupled Audio Signals and D-Class Audio Signals V DD 10nF GND Figure 9. Bandwidth 9 PI3A268C ANALYZER 0 PS8935B 12/15/09 ...

Page 10

... Small Plastic Package, Dual SPDT Analog Switch with -1.5V Signal Support for AC Coupled Audio Signals and D-Class Audio Signals DESCRIPTION: PACKAGE CODE: ZM10 DOCUMENT CONTROL #: PD-2066 Package Type ZM 1.4 X 1.8, Pb-Free & Green, 10-contact UQFN 10 10-contact, Ultra-thin Quad Flat No-Lead (UQFN) Top Mark PI3A268C DATE: 01/29/09 REVISION PS8935B 12/15/09 ...

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