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CM1421

 The CM1421 is available with lead-free finishing.

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

PRODUCT DESCRIPTION
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format product datasheet

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 subjected to electrostatic discharge (ESD). The ESD diodes connected to the filter ports safely dissipate ESD strikes of ±15kV, exceeding 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. wireless handsets, PDAs, notebook computers) 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™ coating which results in improved reliability. The CM1421 is available in space-saving, low-profile chip-scale packages with optional lead-free finishing.

Note: Some of the devices listed here have suggested replacements available. Please see additional information at the end of this page.

FEATURES

APPLICATIONS
  • 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™ coated for improved reliability
  • 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

DATA SHEET(S)

 Part Number Datasheet
 CM1421-03CP Data Sheet (PDF - 451.61 KB)
Last Revision Date: 2005-11-15

PACKAGING, FINISHING & STATUS INFORMATION

Part Number PackageLead-Free
Finishing		OptiGuard™
Coating		Status
CM1421-03CP CSP-15Active
Include CM1421 devices with OBSOLETE status

PRODUCT REPLACEMENT INFORMATION

The following End-of-life or Obsolete products have suggested replacements available from CMD.
Part Number Replacement
CM1421-03CS CM1421-03CP

Status Key

More on End-of-Life and Obsolete Products