October 2010 Doc ID 18144 Rev 1 1/7
7
EMIF02-USB04F3
3-line IPAD™, EMI filter including ESD protection
Features
■ EMI symmetrical (I/O) low-pass filter
■ high efficiency in EMI/ESD protection
■ lead-free package
■ very thin package
■ high reliability offered by monolithic integration
■ high reduction of parasitic elements through
integration and wafer level packaging
Complies with the following standards
■ IEC 61000-4-2 level 4 (on external pins B1 and
C1):
– ±15 kV (air discharge)
– ±8 kV (contact discharge)
■ IEC 61000-4-2 level 1 (on internal pins):
– ±2 kV (air discharge)
– ±2 kV (contact discharge)
Applications
Where EMI filtering in ESD sensitive equipment is
required:
■ mobile phones and communication systems
■ computers, printers and MCU boards
Description
The EMIF02-USB04F3 chip is a highly integrated
audio filter device designed to suppress EMI/RFI
noise in all systems subjected to electromagnetic
interference.
This filter includes ESD protection circuitry, which
prevents damage to the protected device when
subjected to ESD surges up to 15 kV.
Figure 1. Pin configuration (bump side)
Figure 2. Configuration
TM: IPAD is a trademark of STMicroelectronics.
Lead-free Flip-Chip package
(9 bumps)
3 2 1
A
B
C
3 2 1
A
B1
A1
R1
R2
R5
A2
C1
C3
A3
C = 20 pF max
line
B2
R4 R3
C2 B3
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