CSPEMI201AG

Overview

The CSPEMI201AG is a dual low-pass filter array designed for headset and speaker applications. It integrates two pi-style (C-R-C) filters to reduce electromagnetic interference (EMI) and radio frequency interference (RFI) emissions while providing electrostatic discharge (ESD) protection. The device features a resistance of 10 Ohms and capacitance of 100 pF per channel, operating within a temperature range of -40°C to 85°C. Housed in a compact 5-pin WLCSP package with a height of 0.65 mm, it supports surface mount mounting.

Feature Summary

• Integrates two independent pi-style low-pass filter channels for effective EMI/RFI suppression
• Provides integrated electrostatic discharge (ESD) protection for connected audio components
• Designed specifically for reducing noise in headset and speaker signal lines

Applications

• Headset audio line filtering
• Speaker circuit EMI suppression
• Portable electronic device audio interfaces

Procurement Notes

Verify the specific ordering suffix and package variant against official onsemi documentation before procurement. Ensure compatibility with automated surface-mount assembly processes given the WLCSP form factor. Confirm that the specified electrical parameters meet the target application's noise reduction requirements.

Selection Notes

Select this component when dual-channel EMI filtering and ESD protection are required in space-constrained audio designs. The integrated RC network simplifies board layout by replacing discrete components. Consider the operating temperature range and package dimensions to ensure fit within the final enclosure constraints.

Part Context

This component belongs to onsemi's family of EMI/RFI filter circuits. It addresses the growing need for compact, integrated noise suppression solutions in consumer electronics. The design consolidates filtering and protection functions into a single small footprint, supporting miniaturization trends in mobile and wearable devices.

Replacement Considerations

Consult official onsemi substitution guides for verified alternatives. Generic equivalents may not match the specific C-R-C topology or ESD performance characteristics required for sensitive audio interfaces.

FAQ

What is the filter topology used in the CSPEMI201AG?

The device utilizes a pi-style (C-R-C) low-pass filter topology for each of its two channels.

Does the CSPEMI201AG provide ESD protection?

Yes, the component integrates electrostatic discharge (ESD) protection alongside its EMI filtering capabilities.