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CM1423

 The CM1423 is available with lead-free finishing.

Secure Digital (SD) Card EMI Filter Array with ESD Protection

PRODUCT DESCRIPTION
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California Micro Devices's CM1423 is an EMI filter array with ESD protection, which integrates six Pi- filters (C-R-C) and four channels of ESD protection. The CM1423's filters have component values of 12pF-100Ω-12pF. The part includes ESD protection diodes on every pin, which provide a very high level of protection for sensitive electronic components that may be subjected to electrostatic discharge (ESD). All the ESD diodes 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 discharges at greater than ±30kV.

This device is particularly well suited for portable electronics (e.g. mobile handsets, PDAs, notebook computers) because of its small package and easy-to-use pin assignments. In particular, the CM1423 is ideal for EMI filtering and protecting data lines from ESD for the Secure Digital (SD) Card interface slot in mobile handsets. The CM1423 is an all-inclusive solution for the SD card interface since its EMI filters provide the proper cut-off frequency to attenuate unwanted signals.

The CM1423 is manufactured in a space-saving, low-profile, chip-scale package, and is optionally available with OptiGuard™ coating for improved reliability. It is available with RoHS compliant lead-free finishing.

FEATURES

APPLICATIONS
  • Provides EMI filtering and ESD protection for an SD port on a mobile device
  • Six channels of EMI filtering with ESD protection
  • Four channels of ESD protection
  • ±15kV ESD protection on all I/O pins (IEC 61000-4-2, contact discharge)
  • ±30kV ESD protection (HBM)
  • Better than 25dB of attenuation at 1GHz for 12pF-100Ω-12pF filter configuration
  • Integrates 34 components into small form factor CSP solution
  • 20-bump, 4.000mm x 1.458mm footprint Chip Scale Package
  • Chip Scale Package features extremely low lead inductance for optimum filter and ESD performance
  • Available with OptiGuard™ coated version for improved reliability at assembly
  • RoHS compliant (lead-free) finishing
  • Secure Digital (SD) Card data lines in mobile handsets
  • SD Card interface protection for other mobile electronics such as MP3 players, PDAs and digital cameras
  • I/O port protection for mobile handsets, notebook computers, PDAs etc.
  • EMI filtering for data ports in cell phones, PDAs or notebook computers.

DATA SHEET(S)

 Part Number Datasheet
 CM1423-03CP Data Sheet (PDF - 582.41 KB)
Last Revision Date: 2008-04-30 — Issue B

PACKAGING, FINISHING & STATUS INFORMATION

Part Number PackageLead-Free
Finishing		OptiGuard™
Coating		Status
CM1423-03CP CSP-20Active
Include CM1423 devices with OBSOLETE status

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