CM1421 California Micro Devices, CM1421 Datasheet

CM1421

Manufacturer Part Number

CM1421

Description

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

Manufacturer

California Micro Devices

Datasheet

1.CM1421.pdf (8 pages)

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Download datasheet (393Kb)

04/27/04

Features

•

Applications

•

Electrical Schematic

* See Package/Pinout Diagram for expanded pin information

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

Lead-free version available

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

FILTER+ESDn*

430 N. McCarthy Blvd., Milpitas, CA 95035-5112 ▲ Tel: 408.263.3214

(Pins B1-B3)

GND

™

coated for improved reliability

1 of 4 EMI/RFI + ESD Channels.

4-Channel LCD EMI Filter Array plus

4-Channel ESD Protection Array

15pF

100Ω

15pF

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-100Ω-

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).

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

results in improved reliability. The CM1421 is available

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

optional lead-free finishing.

FILTER+ESDn*

▲ Fax: 408.263.7846

ESDn*

1 of 4 ESD-only Channels

▲

www.DataSheet4U.com

www.calmicro.com

15pF

™

coating which

CM1421

The ESD

Related parts for CM1421

CM1421 Summary of contents

Page 1

... California Micro Devices Corp. All rights reserved. 430 N. McCarthy Blvd., Milpitas, CA 95035-5112 ▲ Tel: 408.263.3214 04/27/04 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. ...

Page 2

... Fax: 408.263.7846 CM1421 www.DataSheet4U.com BOTTOM VIEW (Bumps Up View) ESD_3 FILTER+ESD_2 FILTER+ESD_4 FILTER+ESD_1 FILTER+ESD_3 ESD_4 GND GND GND ESD_1 FILTER+ESD_2 FILTER+ESD_4 FILTER+ESD_1 FILTER+ESD_3 ESD_2 Lead-free Finish Ordering Part 1 Number Part Marking CM1421-03CP N213 ▲ www.calmicro.com 2 04/27/04 ...

Page 3

... ABSOLUTE MAXIMUM RATINGS CONDITIONS At 2. =10µA DIODE V =3.3V DIODE I = 10mA LOAD Notes 2,4 and 5 Notes 2,3,4 and 5 R=100Ω , C=15pF =50Ω ▲ Tel: 408.263.3214 ▲ CM1421 www.DataSheet4U.com RATING -65 to +150 100 500 RATING -40 to +85 (SEE NOTE1) MIN TYP MAX 80 100 120 5.5 100 5 ...

Page 4

... Typical Filter Performance (T =25°C, DC Bias=0V, 50 Ohm Environment) A Figure 1. Insertion Loss VS. Frequency (A1-C1 to GND B1) Figure 2. Insertion Loss VS. Frequency (A2-C2 to GND B1) © 2004 California Micro Devices Corp. All rights reserved. 430 N. McCarthy Blvd., Milpitas, CA 95035-5112 ▲ Tel: 408.263.3214 4 www.DataSheet4U.com ▲ Fax: 408.263.7846 ▲ www.calmicro.com CM1421 04/27/04 ...

Page 5

... Typical Filter Performance (T =25°C, DC Bias=0V, 50 Ohm Environment) A Figure 3. Insertion Loss VS. Frequency (A3-C3 to GND B2) Figure 4. Insertion Loss VS. Frequency (A4-C4 to GND B2) © 2004 California Micro Devices Corp. All rights reserved. 430 N. McCarthy Blvd., Milpitas, CA 95035-5112 04/27/04 ▲ Tel: 408.263.3214 ▲ Fax: 408.263.7846 CM1421 www.DataSheet4U.com ▲ 5 www.calmicro.com ...

Page 6

... Performance Information (cont’d) Figure 5. Filter Capacitance vs. Input Voltage over Temperature (normalized to capacitance at 2.5VDC and 25°C) © 2004 California Micro Devices Corp. All rights reserved. 430 N. McCarthy Blvd., Milpitas, CA 95035-5112 ▲ Tel: 408.263.3214 6 www.DataSheet4U.com ▲ Fax: 408.263.7846 ▲ www.calmicro.com CM1421 04/27/04 ...

Page 7

... DIA. Solder Mask Opening 0.325mm DIA. 250 200 150 100 50 0 Figure 8. Lead-free (SnAgCu) Solder ▲ Tel: 408.263.3214 ▲ CM1421 www.DataSheet4U.com VALUE 0.275mm Round Non-Solder Mask defined pads 0.325mm Round 0.125mm - 0.150mm 0.330mm Round 50/50 by volume No Clean OSP (Entek Cu Plus 106A) ± ...

Page 8

... Mechanical Details CSP Mechanical Specifications CM1421 devices are packaged in a custom Chip Scale Package (CSP). Dimensions are presented below. For complete information on CSP packaging, see the Cali- fornia Micro Devices CSP Package Information docu- ment. PACKAGE DIMENSIONS Package Custom CSP Bumps ...

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