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CM1485

Dual Channel EMI Filter with ESD Protection

ON Semiconductor 

Dual Channel EMI Filter

with ESD Protection

CM1485

Features

• Two channels of EMI filtering with integrated

ESD protection

• Pi-style EMI filters in a capacitor-resistor-

capacitor (C-R-C) network

• ±15kV ESD protection on each channel

(IEC 61000-4-2 Level 4, contact discharge)

• ±30kV ESD protection on each channel (HBM)

• Greater than 30dB attenuation (typical) at 1GHz

• 6-lead SOT-563 package

• Available with lead-free finishing

Applications

• LCD and camera data lines in mobile handsets

• I/O port protection for mobile handsets,

notebook computers, PDAs, etc.

• EMI filtering for data ports in cell phones, PDAs

or notebook computers

• Wireless handsets

• Handheld PCs/PDAs

• LCD and camera modules

Product Description

The CM1485 is a 2 channel pi-style EMI filter array

with ESD protection, housed in a 6-lead SOT-563

package. The CM1485 has component values of

12pF-100Ω-12pF per channel. The CM1485 has a

cut-off frequency of 125MHz and can be used in

applications with data rates up to 48Mbps. The

parts include ESD diodes on every pin, which

provide a very high level of protection for sensitive

electronic components that may be subjected to

electrostatic discharge (ESD). The ESD protection

diodes safely dissipate ESD strikes of ±15kV, well

beyond the maximum requirement of the IEC61000-

4-2 international standard. Using the MIL-STD-883

(Method 3015) specification for Human Body Model

(HBM) ESD, the pins are protected for contact

discharges at greater than ±30kV.

This device is particularly well-suited for portable

electronics (e.g. wireless handsets, PDAs,

notebook computers) because of its small package

and easy-to-use pin assignments. In particular, the

CM1485 is ideal for EMI filtering and protecting data

and control lines for the I/O data ports, LCD display

and camera interface in mobile handsets.

The CM1485 is housed in a small, 6-lead SOT-563

package and is available with lead-free finishing.

©2010 SCILLC. All rights reserved.

May 2010 – Rev. 2

Publication Order Number:

CM1485/D

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