Product Overview

Product Overview
CM1457: EMI Filter, 4,6 and 8-Channel, with ESD Protection
For complete documentation, see the data sheet
Product Description
The CM1457 is an inductor-based (L-C) EMI filter array with ESD protection, which integrates four, six, or eight filters in a CSP form
factor with 0.40mm pitch. Each EMI filter channel of the CM1457 is implemented with the component value of 6pF-35nH-4.7pF35nH-1.8pF. The cut-off frequency at -3dB attenuation is 300MHz and can be used in applications where the data rates are as high
as 160Mbps, while providing greater than -35dB attenuation over the 800MHz to 2.7GHz frequency range. The parts include ESD
diodes on every I/O pin and provide a high level of protection against electrostatic discharge (ESD). The ESD protection diodes
connected to the external filter ports are designed and characterized to safely dissipate ESD strikes of ±15kV, which is beyond the
maximum requirement of the IEC61000-4-2 international standard.
Features
Benefits
• 700 MHz Attenuation, critical for LTE deployments
• Suppressed EMI assists in improving handset performance
in Total Isotropic Sensitivity testing, a requirement to get
agency and carrier approvals
• Space saving benefits from use of 0.4mm pitch CSP
• Chip Scale Package (CSP) features extremely low lead
inductance for optimum filter and ESD performance
• 15kV ESD protection on each channel (IEC 61000-4-2 Level
4, contact discharge)
Applications
• Protects against the most agressive ESD events
End Products
• Camera and display interfaces, keypad interfaces
• Cellular phones, notebook computers, netbook computers,
portable navigation devices
• Emerging LTE and 4G protocols
Part Electrical Specifications
Product
Compliance
Status
Interface
Number of
Lines
Filter Type R Typ (Ω)
C Typ (pF) IR Max
(µA)
V(BR) Typ
(V)
VRWM Max
(V)
Package
Type
CM1457-04CP
Pb-free
Active
Display
Port
4
L-C
45
12.5
0.5
6.8
3.3
WLCSP10
6
L-C
45
12.5
0.5
6.8
3.3
WLCSP15
8
L-C
45
12.5
0.5
6.8
3.3
WLCSP20
Halide free
General
I/O
CM1457-06CP
Pb-free
Active
Halide free
General
I/O
Display
Port
CM1457-08CP
Pb-free
Halide free
Active
Display
Port
General
I/O
For more information please contact your local sales support at www.onsemi.com
Created on: 6/30/2016