EMI2121
Single Pair Common Mode
Filter with ESD Protection
Description
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.
http://onsemi.com
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.
SIMPLIFIED SCHEMATIC
External
Internal
(ASIC)
(Connector)
1
8
7
Features
2
6
• Highly Integrated Common Mode Filter (CMF) with ESD Protection
provides protection and EMI Reduction for systems using high speed
Serial Data Lines with cost and space savings over Discrete Solutions
• Large Differential Mode Bandwidth with Cutoff Frequency > 2 GHz
3,4,5
• High Common Mode Stop Band Attenuation: >25 dB at 700 MHz,
MARKING
DIAGRAM
>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 Performance
• Low Profile Package with Small Footprint in WDFN8 2.0 mm length
x 2.2 mm width x 0.75 mm height Pb−Free Package
• These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS
Compliant
8
WDFN8
CASE 511BN
C2 MG
G
1
1
C2 = Specific Device Code
M
= Date Code
= Pb−Free Device
G
(Note: Microdot may be in either location)
Applications
PIN CONNECTIONS
• USB2.0 and other High Speed Differential Data Lines in Mobile
Phones and Digital Still Cameras
• MIPI D−PHY
In_1+
1
2
8
7
Out_1+
In_1−
Out_1−
GND
GND
3
4
6
5
V
/I
DD
D
GND
GND
(Top View)
ORDERING INFORMATION
†
Device
EMI2121MTTAG
Package
Shipping
WDFN8
3000/Tape & Reel
(Pb−Free)
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specification
Brochure, BRD8011/D.
© Semiconductor Components Industries, LLC, 2011
1
Publication Order Number:
May, 2011 − Rev. 0
EMI2121MT/D