CM1483 California Micro Devices Corporation, CM1483 Datasheet

CM1483

Manufacturer Part Number

CM1483

Description

Praetorian R L-c Filter With Esd Protection For Headset Speaker Applications

Manufacturer

California Micro Devices Corporation

Datasheet

1.CM1483.pdf (5 pages)

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Features

•

Applications

•

Product Description

California Micro Devices’ CM1483 is an L-C EMI filter

array with ESD protection, which integrates two Pi-

filters (C-L-C) for the headset speaker. The CM1483

has component values of 100pF-3nH-100pF. The parts

include ESD protection diodes on all input/output pins,

which provide a very high level of protection for

sensitive electronic components that may be subjected

06/14/07

Electrical Schematic

2 channels of EMI filtering

±8kV ESD protection (IEC 61000-4-2, contact

discharge)

±15kV ESD protection (HBM)

Greater than -40dB of attenuation at 1GHz

TDFN-08 package

Headset Speaker port 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

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

Praetorian

Filter #1

Filter #2

for Headset Speaker Applications

L-C EMI Filter with ESD Protection

100pF

Tel: 408.263.3214

to electrostatic discharge (ESD). The ESD diodes

connected to the filter ports safely dissipate ESD

strikes of ±8kV, 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 ±15kV.

This device is particularly well suited for portable

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

computers) because of its small package format and

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

CM1483 is ideal for EMI filtering and protecting

speaker output lines from ESD for the headset speaker

in mobile handsets. Most speakers have impedance of

resistance of an EMI filter needs to be as low as

possible and the CM1483 addresses this by having a

C-L-C based EMI filter where the inductor has less

than 1

The CM1483 is available in a small, low-profile (2mm x

2mm) 8-lead TDFN package in a lead-free finish.

3nH

and in order to maximize the power output, the

of resistance.

100pF

Fax: 408.263.7846

Filter #1

Filter #2

www.cmd.com

CM1483

Related parts for CM1483

CM1483 Summary of contents

Page 1

... EMI filter needs low as possible and the CM1483 addresses this by having a C-L-C based EMI filter where the inductor has less than 1 Ω The CM1483 is available in a small, low-profile (2mm x 2mm) 8-lead TDFN package in a lead-free finish. 3nH 1 L 100pF ...

Page 2

... Down View) (Pins Up View 83E CM1483-02DE 8-lead TDFN Package PIN DESCRIPTIONS PART NUMBERING INFORMATION Ordering Part Number CM1483-02DE Tel: 408.263.3214 GND PAD Lead-free Finish 1 Part Marking 83E Fax: 408.263.7846 www.cmd.com l l CM1483 06/14/07 ...

Page 3

... STANDARD OPERATING CONDITIONS CONDITIONS Note 3 Note 3 2.5V DC; 1MHz, 30mV AC 2.5V DC; 1MHz, 30mV + =- 10mA LOAD I = –10mA LOAD Notes 2 & 3nH 100pF Ω Tel: 408.263.3214 l CM1483 RATING –65 to +150 30 0.5 RATING –40 to +85 (NOTE 1) MIN TYP MAX 3.0 0.75 1 160 200 240 100 0.1 1.0 -1.0 0 – ...

Page 4

... Typical Filter Performance (nominal conditions unless specified otherwise, 50 ohm environment) Figure 1. Insertion Loss vs. Frequency (Filter #1 to GND) Figure 2. Insertion Loss vs. Frequency (Filter #2 to GND) © 2007 California Micro Devices Corp. All rights reserved. 4 490 N. McCarthy Blvd., Milpitas, CA 95035-5112 Tel: 408.263.3214 Fax: 408.263.7846 l l CM1483 www.cmd.com l 06/14/07 ...

Page 5

... Mechanical Details TDFN-08 Mechanical Specifications, 0.5mm The CM1483 is supplied in an 8-lead 0.5mm TDFN package. Dimensions are presented below. For complete information on the TDFN-08, see the Cal- ifornia Micro Devices TDFN Package Information doc- ument. PACKAGE DIMENSIONS Package TDFN JEDEC MO-229 (Var. VCCD-3) No ...

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