EMI Filters | CM1411
EMI Filter with ESD Protection, 2-Channel
概览
The CM1411 is a dual, low-pass filter array integrating two pi-style filters (C-R-C) that reduce EMI/RFI emissions while 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 to 2700 MHz range. These pi-style filters support bidirectional filtering that control 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 strikes of +8kV, 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 device provides protection for contact discharges to greater than +15kV. The CM1411 is particularly well-suited for portable electronics (e.g., cellular telephones, PDAs, notebook computers) because of its small package format and low weight. The CM1411 incorporates OptiGuard® coating which results in improved reliability at assembly and is available in a space-saving, lowprofile Chip Scale Package with lead-free finishing.
- EMI filtering and ESD protection for headset/speaker ports
- Wireless handsets, Wireless handsets, MP3 players, Digital camcorders, Notebooks, & Desktop PCs
- Pi-style EMI filters in a capacitor-resistor-capacitor(C-R-C) network
- Greater than 40dB attenuation at 1GHz
- Two channels of EMI filtering
- Extremely low lead inductance for optimum filter
and ESD performance
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