The 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 resistorcapacitor (R-C) and inductor-capacitor (L-C) filters in the chip. There are five C-R-C filters with component values of 30pF-100 -30pF which are used for the microphone and data ports. There are also three CL-C 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-STD883 (Method 3015) specification for Human Body Model (HBM) ESD, the pins are also protected for contact discharges at greater than 30kV. The CM1454 incorporates OptiGuardTM 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.