CM1420-22 Datasheet, PDF (1/15 Pages) ON Semiconductor – LCD EMI Filter Array with ESD Protection

LCD EMI Filter Array with
ESD Protection
CM1420-22
Features
• Functionally and pin compatible with CSPEMI606
(CM1420) and CSPEMI608 (CM1422) devices
• OptiGuard^TM coated for improved reliability at
assembly
• Six and eight channels of EMI filtering
• +15kV ESD protection on each channel
(IEC 61000-4-2 Level 4, contact discharge)
• +30kV ESD protection on each channel (HBM)
• Better than 30dB of attenuation at 1GHz to 3GHz
• Chip Scale Package features extremely low
lead inductance for optimum filter and ESD
performance
• 15-bump, 2.960mm x 1.330mm footprint
Chip Scale Package (CM1420)
• 20-bump, 4.000mm x 1.458mm footprint
Chip Scale Package (CM1422)
• RoHS compliant (lead-free) finishing
Applications
• LCD data lines in clamshell wireless handsets
• EMI filtering & ESD protection for high-speed I/O
data ports
• Wireless handsets / cell phones
• Notebook computers
• PDAs / Handheld PCs
• EMI filtering for high-speed data lines
Product Description
The CM1420 and CM1422 are EMI filter arrays with
ESD protection, which integrate six and eight Pi-
filters (C-R-C), respectively. The CM1420/22 has
component values of 15pF-100Ω-15pF. These
devices include ESD protection diodes on every pin,
which provide a very high level of protection for
sensitive electronic components that may be
subjected to electrostatic discharge (ESD). The ESD
diodes connected to the filter ports safely dissipate
ESD strikes of ±15kV, well beyond the maximum
requirement of the IEC 61000-4-2 international
standard. Using the MIL-STD-883 (Method 3015)
specification for Human Body Model (HBM) ESD, the
pins are protected for contact discharges at greater
than ±30kV.
This device is particularly well suited for portable
electronics (e.g. wireless handsets, PDAs, notebook
computers) because of its small package format and
easy-to-use pin assignments. In particular, the
CM1420/22 is ideal for EMI filtering and protecting
data lines from ESD for the LCD display in clamshell
handsets.
The CM1420 and CM1422 incorporate OptiGuard^TM
coating which results in improved reliability at
assembly. The CM1420 and CM1422 are available in
space-saving, low-profile chip-scale packages with
RoHS compliant lead-free finishing.
©2010 SCILLC. All rights reserved.
April 2010 Rev. 3
Publication Order Number:
CM1420-22/D