|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||

Ultra-Low-THD Dual-SPDT (0.35Ω) Analog Switch

with Negative Signal Handling Capability

2015-10-0009

PT0541-4

11/03/15

1

PI3A288

Features

 CMOS Technology for Bus and Analog Applications

 Negative Signal Handling Capability at all Ports

 Low On-Resistance: 0.35Ω at 1.8V Supply

 On-Resistance Flatness 0.001Ω

 Wide VDD Range: 1.65V to 4.3V

 2.0Vrms analog signal range

 Programmable soft-start and soft-stop time

 -3dB Bandwidth: 255MHz

 High Off Isolation: -85dB @ 30kHz

 Low THD: 0.0003% from 20Hz to 20kHz, 0.5VRMS

 Crosstalk Rejection Reduces Signal Distortion:

-85dB @ 30kHz

 High-impedance mode when VDD not applied

 ESD：4kV for HBM mode, 1kV for CDM mode

 Extended Industrial Temperature Range: –40°C to

85°C

 Packaging (Pb-free & Green): –10-contact UQFN

(ZM10)

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

PI3A288 is a dual, single-pole double throw (SPDT)

CMOS switch with negative signal handling capability

at all ports. It can be used as an analog switch or as a

low-delay bus switch. Operating over a wide power

supply voltage ranges from 1.65V to 4.3V, PI3A288

processes a low on-resistance and distortion. The ultra-

low THD performance enables PI3A288 to apply in

high-quality audio applications.

PI3A288 has also a soft-start and soft-stop feature so as

to minimize signal disruption during channel switching

Functional Block Diagram

Pin Description

Pin

Name

Description

1, 3

Data Ports (Normally open)

4

GND

Ground

2, 10

Data Ports (Normally closed)

5, 8

Common Output / Data Ports

9

Positive Power Supply

7

IN

Logic Control Pins

6

SSCAP

Slew Rate Control Pin

Logic Function Table

Logic Input (IN)

Function

0

NC1 Connected to COM1

NC2 Connected to COM2

1

NO1 Connected to COM1

NO2 Connected to COM2

Logic Function Table