CM1418 Datasheet | onsemi

Praetoriant L-C EMI Filter with ESD Protection for Headset Speakers Product Description The CM1418 is an L- C EMI filter array with ESD protection that integrates two Pi- filters (C- L- C) for a headset speaker. The CM1418 has ponent values of 117 p F/3.0 n H/117 p F. The parts include ESD protection diodes on all input/output pins, and provide a very high level of protection for sensitive electronic ponents against possible electrostatic discharge (ESD). The ESD diodes connected to the filter ports safely dissipate ESD strikes of ±30 k V, which is beyond the maximum 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 protected for contact discharges at greater than ±30 k V. This device is particularly well suited for portable electronics (e.g. mobile handsets, PDAs, notebook puters) because of its small package format and easy- to- use pin assignments. In particular, the CM1418 is ideal for EMI filtering and protecting speaker output lines of the headset speaker from ESD in mobile handsets. Most speakers have an impedance of 8 W. However, to maximize the power output, the resistance of an EMI filter needs to be as low as possible. The CM1418 addresses this by using a C- L- C based EMI filter with an inductor having less than 0.35 W of resistance. The CM1418 es with Opti Guardt coating resulting in improved reliability at assembly. The CM1418 is housed in a space saving, low profile Chip Scale Package with Ro HS- pliant, lead- free finishing. Features - Two Channels of EMI Filtering - ±30 k V ESD Protection (IEC 61000- 4- 2, Contact Discharge) - ±30 k V ESD Protection (HBM) - Opti Guardt Coating for Improved Reliability at Assembly - Greater than 35 d B of Attenuation at 1 GHz - 6- Bump, 1.720 mm X 1.220 mm Footprint Chip Scale Package (CSP) - These Devices are Pb- Free and are Ro HS pliant Applications - Headset Speaker Port in Mobile Handsets - I/O Port...