Product Description

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 resistor capacitor (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 C-L-C filters with values of 80pF-3nH-80pF which are designed for the stereo speaker port.

Features

• Optiguard™ coated for improved reliability

• Eight channels of EMI filtering

• Three C-L-C filters with ESD protection for stereo speaker port

• Five C-R-C filters with ESD protection for microphone and data ports

• +15kV ESD protection on each channel (IEC 61000-4-2 Level 4, contact discharge)

• +30kV ESD protection on each channel (HBM)

• Chip Scale Package (CSP) features extremely low parasitic inductance for optimum filter and ESD performance

• 20 bump, 3.960mm x 1.586mm footprint CSP

• RoHS compliant (lead-free)

Applications

• Combination I/O data port that has I/Os for data, microphone and speaker

• I/O port protection for mobile handsets, notebook computers, PDAs etc

• EMI filtering for data ports in cell phones, PDAs or notebook computers

• Wireless Handsets

• Handheld PCs / PDAs

CM1454-08CP属于滤波器 > EMI/RFI 滤波器（LC，RC 网络）。安森美半导体公司制造生产的CM1454-08CPEMI/RFI 滤波器（LC，RC 网络）该系列产品将几种无源元器件集成到单个装置中，可用于产生电流的频率依赖性阻抗。尽管有其他类型，但大多数都是用于抑制不必要高频信号传输的低通型，否则可能会导致干扰或意外操作。