2-channel EMI filter and ESD protection for speaker phone

The EMIF02-SPK03F2 chip is a highly integrated device designed to suppress EMI/RFI noise for interface line filtering.

The EMIF02-SPK03F2 is 2-channel, ultra compact, high attenuation filter available in 0.5 mm pitch WLCSP package. Additionally, this filter includes ESD protection circuitry, which prevents damage to the protected device when subjected to ESD surges up 30 kV.

Key Features

  • 2-channel EMI symmetrical (I/O) low-pass filter
  • High efficiency in EMI filtering:
    • S21 attenuation, -40 dB at 900 MHz
    • Xtalk, in audio band, -60 dB
  • Very low PCB space consumption: 0.89 x 1.26 mm
  • Very thin package: 0.6 mm after reflow
  • High efficiency in ESD suppression on input pins (IEC 61000-4-2 level 4)
  • High reliability offered by monolithic integration
  • High reduction of parasitic elements through integration and wafer level packaging
  • Packaged in lead-free Flip Chip
  • Complies with the following standards
    • IEC 61000-4-2 level 4:±15 kV (air discharge)±8 kV (contact discharge)


Technical Documentation

Product Specifications
Description Version Size
DS9051 DS9051: 2-channel EMI filter and ESD protection for speaker phone 1.0 278 KB
Application Notes
Description Version Size
AN2348 AN2348: IPAD™ 400 µm Flip Chip: package description and recommendations for use 5.0 261 KB
AN1235 AN1235: IPAD™ 500 µm Flip Chip: package description and recommendations for use 8.0 251 KB
Technical Notes & Articles
Description Version Size
TN1200 TN1200: Micro-bump Flip Chip: package description and recommendations for use 1.0 280 KB
TN1173 TN1173: Packing information for IPAD™, protection, rectifiers, thyristors and AC Switches 3.1 333 KB

HW Model & CAD Libraries

HW Model & CAD Libraries
Description Version Size
EMIF02-SPK03F2 S-parameter model (.sxp) 1.0 218 KB

Publications and Collaterals

Description Version Size
Semiconductor solutions for healthcare applications 1.0 665 KB
Support & Community

Sample & Buy

Part Number Package Packing Type Marketing Status Unit Price (US$) * Quantity ECCN (EU) ECCN (US) Country of Origin More info Order from ST Order from Distributors
EMIF02-SPK03F2 Chip Scale Package 0.5mm pitch Tape And Reel Active 0.228 100 NEC EAR99 CHINA MORE INFO DISTRIBUTOR AVAILABILITY

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors

Quality & Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
EMIF02-SPK03F2 ActiveChip Scale Package 0.5mm pitchIndustrialEcopack2 0 0

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.