CM1411

www.DataSheet4U.com CM1411 2 Channel Headset/Speaker EMI Filter with ESD Protection Features Functionally and pin compatible with CMD’s CSPEMI201A OptiGuard™ coated for improved reliability at assembly Two channels of EMI filtering Pi-style EMI filters in a capacitor-resistor-capacitor (C-R-C) network Greater than 40dB attenuation at 1GHz +8kV ESD protection on each channel (IEC 61000-4-2 Level 4, contact discharge) +15kV ESD protection in each channel (HBM) Supports AC signals—ideal for audio applications Extremely low lead inductance for optimum filter and ESD performance 5-bump, 0.950mm X 1.410mm footprint Chip Scale Package (CSP) Lead-free version available Product Description The CM1411 is a dual low-pass filter array integrating two pi-style filters (C-R-C) that reduce EMI/RFI emissions while at the same time providing ESD protection. This part is custom-designed to interface with a speaker port on a cellular telephone or similar device. Each high quality filter provides more than 35dB attenuation in the 800-2700 MHz range. These pi-style filters support bidirectional filtering, controlling EMI both to and from a speaker element. They also support AC signals with a cutoff frequency of 31MHz, enabling audio signals to pass through without distortion. In addition, the CM1411 provides a very high level of protection for sensitive electronic components that may be subjected to electrostatic discharge (ESD). The CM1411 can safely dissipate ESD stri...