CSPEMI201A

Features:

• 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




Application

• EMI filtering and ESD protection for headset speaker ports
• Wireless Handsets
• Handheld PCs / PDAs
• MP3 Players
• Digital Camcorders
• Notebooks
• Desktop PCs




Pinout






Specifications

PARAMETER	RATING	UNITS
Storage Temperature Range	-65 to +150	°C
DC Power per Resistor	100	mW
DC Package Power Rating	200	mW

• 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, 0.930mm X 1.410mm footprint Chip Scale Package (CSP)
• RoHS compliant (lead-free) finishing

Description

The CSPEMI201A 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 bipolar signals with a cutoff frequency of 31MHz, enabling audio signals to pass through without distortion.

In addition, the CSPEMI201A provides a very high level of protection for sensitive electronic components that may be subjected to electrostatic discharge (ESD). The CSPEMI201A 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 CSPEMI201A is particularly well suited for portable electronics (e.g., cellular telephones, PDAs, notebook computers) because of its small package format and low weight. The CSPEMI201A is available in a space-saving, low-profile Chip Scale Package with optional lead-free finishing.