Data Port EMI Filter Arraywith ESD Protection


The CM1454 is an EMI filter array with ESD protection in a CSPform factor for the data port of a mobile handset. The CM1454 08 isconfigured in an 8 channel format and combines bothresistor capacitor (R C) and inductor capacitor (L C) filters in thechip. There are five C R C filters with component values of 30pF 100 W 30pF which are used for the microphone and data ports.There are also three C L C filters with values of 80 pF 3 nH 80 pFwhich are designed for the stereo speaker port.

The CM1454’s C RC filters have a cut off frequency of 60MHzand an attenuation of better than 35dB over the 800MHz to 2.7GHzfrequency range. The C L C filters have a cut off frequency of21MHz with an attenuation of 40 dB at 1 GHz. The parts integrateESD protection diodes on every pin that provide a very high level ofprotection for sensitive electronic components against possibleelectrostatic discharge (ESD). The ESD protection diodes connectedto the filter ports are designed and characterized to safely dissipateESD strikes of ±15 kV, which is beyond the Level 4 requirement of theIEC61000 4 2 international standard. In accordance withMIL STD 883 (Method 3015) specification for Human Body Model(HBM) ESD, the pins are also protected for contact discharges atgreater than ±30 kV.

The CM1454 incorporates OptiGuardt which results in improvedreliability at assembly. The CM1454 is available in a space saving, lowprofile Chip Scale Package with RoHS compliant lead free finishing.








CM1454 08

20 Bump CSP PackageN548

= CM1454 08CP


DeviceCM1454 08CP

PackageCSP 20(Pb Free)

Shipping 3500/Tape & Reel

OptiGuardtCoated for Improved ReliabilityEight Channels of EMI Filtering

Three C L C Filters with ESD Protection for Stereo Speaker PortFive C R C Filters with ESD Protection for Microphone and DataPorts

±15 kV ESD Protection on Each Channel(IEC 61000 4 2 Level 4, Contact Discharge)±30 kV ESD Protection on Each Channel (HBM)

Chip Scale Package (CSP) Features Extremely Low ParasiticInductance for Optimum Filter and ESD Performance20 Bump, 3.960 mm x 1.586 mm Footprint CSPThese Devices are Pb Free and are RoHS Compliant

For information on tape and reel specifications,including part orientation and tape sizes, pleaserefer to our Tape and Reel Packaging SpecificationBrochure, BRD8011/D.


Combination I/O Data Port that has I/Os for Data,

Microphone and Speaker

I/O Port Protection for Mobile Handsets, NotebookComputers, PDAs, etc.

EMI Filtering for Data Ports in Cell Phones, PDAs or

Notebook ComputersWireless HandsetsHandheld PCs / PDAs

CM1454 08CP;中文规格书,Datasheet资料相关文档