CM1421 datasheet(1/8 Pages) CALMIRCO

No de pièce	CM1421

Description	4-Channel LCD EMI Filter Array plus / 4-Channel ESD Protection Array

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Fabricant	CALMIRCO [California Micro Devices Corp]

Site Internet	http://www.calmicro.com

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04/27/04

430 N. McCarthy Blvd., Milpitas, CA 95035-5112

▲ Tel: 408.263.3214

▲ Fax: 408.263.7846 ▲ www.calmicro.com

1

CM1421

4-Channel LCD EMI Filter Array plus

4-Channel ESD Protection Array

Features

•

Functionally and pin compatible with CMD’s

CSPEMI607

•

Four channels of combined EMI/RFI filtering plus

ESD protection

•

Four additional channels of ESD-only protection

•

Better than 30dB attenuation (typical) at 1 GHz

•

±15kV ESD protection on all channels

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

•

±30kV ESD protection on all channels (HBM)

•

Chip Scale Package features extremely low

lead inductance for optimum filter and ESD

performance

•

15-bump, 2.960mm X 1.330mm footprint

Chip Scale Package (CSP)

•

Optiguard

™ coated for improved reliability

•

Lead-free version available

Applications

•

LCD data lines in mobile handsets

•

EMI filtering and ESD protection for both data and

I/O ports

•

Mobile Handsets

•

Handheld PCs / PDAs

•

Notebook Computers

Product Description

The CM1421 is a multichannel array consisting of four

low-pass filters with integrated ESD protection and four

ESD-only protection channels designed to reduce EMI/

RFI emissions on LCD data lines in mobile handsets.

The CM1421 has component values of 15pF-100

Ω-

15pF. These devices include ESD protection diodes on

every pin, which provide a very high level of protection

for sensitive electronic components that may be sub-

jected to electrostatic discharge (ESD).

The ESD

diodes connected to the filter ports are designed and

characterized to safely dissipate ESD strikes of ±15kV,

beyond the maximum requirement of the IEC 61000-4-

2 international standard. Using the MIL-STD-883

(Method 3015) specification for Human Body Model

(HBM) ESD, the pins are protected for contact dis-

charges at greater than ±30kV.

This device is particularly well suited for portable elec-

tronics (e.g. wireless handsets, PDAs, notebook com-

puters) because of its small package format and easy-

to-use pin assignments. In particular, the CM1421 is

ideal for EMI filtering and protecting data lines from

ESD for the LCD display in clamshell handsets.

The CM1421 incorporates Optiguard

™ coating which

results in improved reliability. The CM1421 is available

in space-saving, low-profile chip-scale packages with

optional lead-free finishing.

Electrical Schematic

100

Ω

15pF

FILTER+ESDn*

GND

FILTER+ESDn*

1 of 4 EMI/RFI + ESD Channels.

(Pins B1-B3)

15pF

ESDn*

1 of 4 ESD-only Channels

* See Package/Pinout Diagram for expanded pin information

Numéro de pièce similaire - CM1421

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ON Semiconductor	CM1421	663Kb / 8P	4-Channel LCD EMI Filter Array March, 2011 ??Rev. 3

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California Micro Device...	CSPEMI607	198Kb / 5P	4-Channel LCD EMI Filter Array with ESD Protection plus 4-Channel of ESD Protection Array
ON Semiconductor	CSPEMI307A	807Kb / 8P	4-Channel ESD/EMI Filter Array Plus 4-Channel ESD May, 2011 ??Rev. 3
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CM1421 Fiches technique(PDF) 1 Page - California Micro Devices Corp

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