EMI2121: EMI Common Mode Filter with ESD Protection

The EMI2121 is an integrated common mode filter providing both ESD protection and EMI filtering for high speed serial digital interfaces such as USB2.0.The EMI2121 provides EMI filtering for one differential data line pair and ESD protection for one data pair plus a supply input such as USB2.0 Vbus or USB ID pin. It is supplied in a small RoHS compliant WDFN8 package.

Features
  • Highly Integrated Common Mode Filter (CMF) with ESD Protectionprovides protection and EMI Reduction for systems using high speedSerial Data Lines with cost and space savings over Discrete Solutions
  • Large Differential Mode Bandwidth with Cutoff Frequency > 2 GHz
  • High Common Mode Stop Band Attenuation: >25 dB at 700 MHz,>30 dB at 800 MHz Typical
  • Provides ESD Protection to IEC61000-4-2 Level 4, 12 kV Contact Discharge
  • Low Channel Input Capacitance Provides Superior Impedance Matching
Benefits
  • Integration of ESD and Filter function
  • Rejects cellular transmit frequencies
  • Rejects cellular transmit frequencies
  • High level ESD protection
  • Low capacitive loading
Applications
  • USB2.0 and other High Speed Differential Data Lines in Mobile Phones and Digital Still Cameras
  • MIPI DPHY
Package Drawings (1)
Document TitleDocument ID/SizeRevision
WDFN8 2.2x2, 0.5P511BN (56.5kB)A
Order Information
ProductStatusCompliancePackageMSL*ContainerBudgetary Price/Unit
EMI2121MTTAGActivePb-free Halide freeWDFN-8511BN1Tape and Reel3000$0.3333
SZEMI2121MTTAGActiveAEC Qualified PPAP Capable Pb-free Halide freeWDFN-8511BN1Tape and Reel3000$0.2787
Specifications
ProductInterfaceNumber of LinesFilter TypeR Typ (Ω)C Typ (pF)IR Max (µA)V(BR) Typ (V)VRWM Max (V)
EMI2121MTTAGUSB 2.03Common Mode80.817.255
SZEMI2121MTTAGUSB 2.03Common Mode80.817.255
Single Pair Common Mode Filter with ESD Protection (252.0kB) EMI2121
Consideration of Self-Pollution Reduction for Electronic Systems EMI4183
EMI2121MTTAG Spice4 Simulation Model EMI2121
WDFN8 2.2x2, 0.5P EMI2124