CSPEMI202A: EMI Filter with ESD Protection, Headset Microphone

The CSPEMI202AG 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 microphone 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 microphone element. They also support bipolar signals, enabling audio signals to pass through without distortion.

Features
  • Two lines of EMI suppression with integrated ESD protection
  • Extremely low lead inductance for optimum filter and ESD performance
  • Cellular phones, notebook computers, netbook computers, portable navigation devices
Benefits
  • Suppresses noise off of strong analog and digital audio lines, provides ESD protection in a monolythic Chip Scale Package
  • Using Chip Scale Packaging to eliminate the long wires associated
Applications
  • Audio interfaces on wireless devices
Package Drawings (2)
Document TitleDocument ID/SizeRevision
WLCSP5 1.41x0.94567LT (29.3kB)O
WLCSP5, 1.41x0.94567AZ (60.1kB)O
Order Information
ProductStatusCompliancePackageMSL*ContainerBudgetary Price/Unit
CSPEMI202AGActivePb-free Halide freeWLCSP-5567AZ1Die Surf Tape and Reel3500$0.1304
CSPEMI202FCTAGActivePb-free Halide freeWLCSP-5567LT1Die Surf Tape and Reel3500$0.1304
Specifications
ProductInterfaceNumber of LinesFilter TypeR Typ (Ω)C Typ (pF)IR Max (µA)V(BR) Typ (V)VRWM Max (V)
CSPEMI202AGAudio General I/O2R-C689416.85
CSPEMI202FCTAGAudio General I/O2R-C689416.85
WLCSP5, 1.41x0.94 CSPEMI202A
WLCSP5 1.41x0.94 CSPEMI202A