CM1457中文资料EMI 滤波器，4、6 和 8 沟道，带 ESD 保护数据手册ONSEMI规格书

描述 Description

The CM1457 is an inductor-based (L-C) EMI filter array with ESD protection, which integrates four, six, or eight filters in a CSP form factor with 0.40mm pitch.Each EMI filter channel of the CM1457 is implemented with the component value of 6pF-35nH-4.7pF-35nH-1.8pF. The cut-off frequency at -3dB attenuation is 300MHz and can be used in applications where the data rates are as high as 160Mbps, while providing greater than -35dB attenuation over the 800MHz to 2.7GHz frequency range. The parts include ESD diodes on every I/O pin and provide a high level of protection against electrostatic discharge (ESD). The ESD protection diodes connected to the external filter ports are designed and characterized to safely dissipate ESD strikes of ±15kV, which is beyond the maximum requirement of the IEC61000-4-2 international standard.

特性 Features

• 700 MHz Attenuation, critical for LTE deployments
• SuppressedEMI assists in improving handset performance in Total Isotropic Sensitivity testing, a requirement to get agency and carrier approvals
• Chip Scale Package (CSP) features extremely low lead inductance for optimum filter and ESD performance
• Space saving benefits from use of 0.4mm pitch CSP
• 15kV ESD protection on each channel (IEC 61000-4-2 Level 4, contact discharge)
• Protects against the most agressive ESD events

应用 Application

• Camera and display interfaces, keypad interfaces
• Emerging LTE and 4G protocols
• Cellular phones, notebook computers, netbook computers, portable navigation devices

简介

CM1457属于滤波器的EMI/RFI滤波器（LCRC网络）。由制造生产的CM1457EMI/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。