CM1423

• 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

California Micro Devices&primes 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&primes filters have component values of 12pF-100-12pF. 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.