© 2000 California Micro Devices Corp. All rights reserved.

12/15/2000

215 Topaz Street, Milpitas, California 95035

Tel: (408) 263-3214

Fax: (408) 263-7846

www.calmicro.com

1

CALIFORNIA MICRO DEVICES

PACUSB100

USB UPSTREAM PORT FILTER WITH ESD PROTECTION

SCHEMATIC CONFIGURATION

Features

• Provides EMI/RFI filtering

• Bi-Directional ESD protection Circuitry for

optimum system protection

• Very small package

• USB 1.1 compliant

Product Description

The USB is a four wire system utilizing a two wire twisted pair for transferring data, and two lines to supply power and ground

connection to hubs and devices. The USB allows for two modes of signaling. The low speed mode is defined at 1.5Mbs with

the full speed at 12Mbs.

The PACUSB100 provides ESD protection with EMI filtering and termination. It is ideal for protecting vulnerable components

in devices like keyboard, mouse, scanner/printer, etc. The PACUSB100 also supports upstream ports. California Micro Devices

also offers a complementary device (PACUSB200) to provide filtering and ESD protection for downstream ports. The PACUSB100

has the following characteristics:

•

Compatible with Universal Serial Bus specification 1.0.

•

Protects both the system and device from external ESD pulses up to 6KV per the Human Body Model.

•

Suppresses EMI/RFI noise on high speed data lines.

Applications

• Keyboard, mouse, game peripherals

• Speakers

• Scanners/printers

• Monitors

• Modems

*Guaranteed by design

Note 1: Pins 1,4 and 8 grounded

Pins 3,5 and 6 open

Contact discharge between pins

7 and 2 to ground, one at a time

GND Pins = 1, 4, 8

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