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CM1454

 The CM1454 is available with lead-free finishing.

Data Port EMI Filter Array with ESD Protection

PRODUCT DESCRIPTION
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California Micro Devices' CM1454 is an EMI filter array with ESD protection in a CSP form factor for the data port of a mobile handset. The CM1454-08 is configured in an 8 channel format and combines both resistor-capacitor (R-C) and inductor-capacitor (L-C) filters in the chip. There are five C-R-C filters with component values of 30pF-100Ω-30pF which are used for the microphone and data ports. There are also three C-LC filters with values of 80pF-3nH-80pF which are designed for the stereo speaker port.

The CM1454's C-RC filters have a cut-off frequency of 60MHz and an attenuation of better than 35dB over the 800MHz to 2.7GHz frequency range. The C-L-C filters have a cut-off frequency of 21MHz with an attenuation of 40dB at 1Ghz. The parts integrate ESD protection diodes on every pin that provide a very high level of protection for sensitive electronic components against possible electrostatic discharge (ESD). The ESD protection diodes connected to the filter ports are designed and characterized to safely dissipate ESD strikes of ±15kV, which is beyond the Level 4 requirement of the IEC61000-4-2 international standard. In accordance with MIL-STD-883 (Method 3015) specification for Human Body Model (HBM) ESD, the pins are also protected for contact discharges at greater than ±30kV.

The CM1454 incorporates OptiGuard™ which results in improved reliability at assembly. The CM1454 is available in a space saving, low profile Chip Scale Package with, RoHS compliant, lead-free finishing.

FEATURES

APPLICATIONS
  • Optiguard™ coated for improved reliability
  • Eight channels of EMI filtering
  • Three C-L-C filters with ESD protection for stereo speaker port
  • Five C-R-C filters with ESD protection for microphone and data ports
  • ±15kV ESD protection on each channel (IEC 61000-4-2 Level 4, contact discharge)
  • ±30kV ESD protection on each channel (HBM)
  • Chip Scale Package (CSP) features extremely low parasitic inductance for optimum filter and ESD performance
  • 20 bump, 3.960mm x 1.586mm footprint CSP
  • RoHS compliant (lead-free)
  • Combination I/O data port that has I/Os for data, microphone and speaker
  • 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

DATA SHEET(S)

 Part Number Datasheet
 CM1454-08CP Data Sheet (PDF - 504.51 KB)
Last Revision Date: 2009-05-01 — Issue A

PACKAGING, FINISHING & STATUS INFORMATION

Part Number PackageLead-Free
Finishing		OptiGuard™
Coating		Status
CM1454-08CP CSP-20Active

Status Key

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