Low Electromagnetic Interference (EMI) & EMI-Hardened Solutions

National Semiconductor offers a multitude of solutions and design resources for very low electromagnetic interference (EMI) and excellent electromagnetic immunity, including ultra low noise/EMI class D audio amplifiers, analog audio noise suppression, EMI-hardened op amps, low EMI LVDS and RSDS interface solutions, low noise, low EMI switcher and LDO power management, low EMI data converters, ultra-low jitter clock conditioners, and radiation-hard (rad hard) space-level solutions. 

Search for all documents related to "EMI" or "Electromagnetic Interference"

 

General Low EMI Design Tips:

• Webinar: EMI & RFI
  • EMI causes and effects
  • Susceptibility of CMOS and Bipolar Amplifiers to EMI
  • Benefits of EMI hardened op amps compared to traditional mitigation techniques
  • Calculating the impact of EMI on system performance
• AN-643: EMI/RFI Board Design
• Fixing EMI Across the Board (Analog Edge Article)
• LVDS Owner's Manual (discusses low EMI PCB design for high-speed applications)

Low EMI Solutions:

• Amplifiers Home
  • EMI-Hardened Amplifiers
  • AN-1698: A Specification for EMI Hardened Operational Amplifiers
  • Low Noise Op Amps
• Audio Home
  • Class D Audio Amplifiers
  • Noise Suppression/Reduction
  • Reducing EMI in Class D Audio Applications
  • AN-1737: Managing EMI in Class D Audio Applications
• Data Conversion Home
  • The problem of ADC and mixed-signal grounding and layout for dynamic performance while minimizing RFI/EMI (Analog Edge Article)
  • Using Power to Improve Signal-Path Performance (Analog Edge Article)
• Interface Home
  • LVDS & CML (low EMI LVDS)
  • LVDS Owner's Manual (discusses low EMI PCB design)
  • Serializers/Deserializers (SerDes)
  • Combating Noise Effects In Adaptive Cable Equalizer Designs (Analog Edge Article)

Low EMI Solutions (continued):

•  Power Management Home
  • Simple Switcher®
  • LM20xxx Family Full-Featured Switchers
  • Low Dropout (LDOs)
  • LED Drivers
  • Powering Digital ICs (FPGAs, DSPs, µPs, ASICs)
  • Using Power to Improve Signal-Path Performance (Analog Edge Article)
  • AN-1149: Layout Guidelines for Switching Power Supplies
• Clock & Timing Devices Home
  • Clock Conditioner Owner's Manual (pdf 3.7MB)
  • AN-988: High Speed Clock Sources and Their Effect on Electromagnetic Compatibility
• Displays Products Home (low EMI LVDS, RSDS, etc display links)
  • MPL in Cell Phones Makes Smaller, Smarter Serial Links
  • AN-990: Radiated Emissions and CRT Displays

 

• Military/Aerospace Home
• Space Products Home
  • Rad Hard Resources
  • Radiation Owner's Manual