CM1426 datasheet(1/13 Pages) CALMIRCO

Part #	CM1426

Description	LCD and Camera EMI Filter Array with ESD Protection

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Manufacturer	CALMIRCO [California Micro Devices Corp]

Direct Link	http://www.calmicro.com

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08/30/05

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

●

Tel: 408.263.3214

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Fax: 408.263.7846

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www.calmicro.com

1

CM1426

PRELIMINARY

LCD and Camera EMI Filter Array with ESD Protection

Features

•

Four, six and eight channels of EMI filtering with

integrated ESD protection

•

0.5mm pitch, 10-bump, 1.96mm x 1.33mm foot-

print Chip Scale Package (CM1426-04)

•

0.5mm pitch, 15-bump, 2.96mm x 1.33mm foot-

print Chip Scale Package (CM1426-06)

•

0.5mm pitch, 20-bump, 3.96mm x 1.33mm foot-

print Chip Scale Package (CM1426-08)

•

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

(C-R-C) network

•

±8kV ESD protection on each channel

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

•

±15kV ESD protection on each channel (HBM)

•

Greater than 20dB attenuation (typical) at 1 GHz

•

Chip Scale Package features extremely low

lead inductance for optimum filter and ESD

performance

•

Optiguard

™ coated for improved reliability at

assembly

•

Lead-free version available

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 CM1426 is a family of pi-style EMI filter arrays with

ESD protection, which integrates four, six and eight fil-

ters (C-R-C) in a Chip Scale Package with 0.50mm

pad pitch. The CM1426 has component values of

8.5pF-100

Ω-8.5pF per channel. The CM1426 has a

cut-off frequency of 230MHz and can be used in appli-

cations where the data rates are as high as 92Mbps.

The parts include avalanche-type 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

±8kV, 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 dis-

charges at greater than

±15kV.

These devices are particularly well-suited for portable

electronics (e.g. wireless handsets, PDAs, notebook

computers) because of their small package and easy-

to-use pin assignments. In particular, the CM1426 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 CM1426 incorporates Optiguard

™ which results in

improved reliability at assembly. The CM1426 is avail-

able in a space-saving, low-profile Chip Scale Package

with optional lead-free finishing.

100

Ω

8.5pF

FILTER+ESDn*

GND*

FILTER+ESDn*

Electrical Schematic

1 of 4, 6 or 8 EMI/RFI + ESD Channels

* See Package/Pinout Diagram

for expanded pin information.

(Pins B1-Bm)

(Pins A1-An)

(Pins C1-Cn)

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CM1426 Datasheet(PDF) 1 Page - California Micro Devices Corp

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