CM1431 Datasheet, PDF (1/12 Pages) California Micro Devices Corp – LCD and Camera EMI Filter Array with ESD Protection

LCD and Camera EMI Filter
Array with ESD Protection
CM1431
Features
• Four, six and eight channels of EMI filtering with
integrated ESD protection
• Pi-style EMI filters in a capacitor-resistor-
capacitor (C-R-C) network
• ±15kV ESD protection on each channel
(IEC 61000-4-2 Level 4, contact discharge)
• ±30kV ESD protection on each channel (HBM)
• Greater than 35dB attenuation (typical) at 1 GHz
• TDFN package with 0.40mm lead pitch:
• 4-ch. = 8-lead TDFN
• 6-ch. = 12-lead TDFN
• 8-ch. = 16-lead TDFN
• Tiny TDFN package size:
• 8-lead: 1.7mm x 1.35mm
• 12-lead: 2.5mm x 1.35mm
• 16-lead: 3.3mm x 1.35mm
• Increased robustness against vertical impacts
during manufacturing process
• Lead-free finishing
Applications
• LCD and Camera data lines in mobile handsets
• I/O port protection for mobile handsets, notebook
computers, PDAs etc.
• EMI filtering for data ports in cell phones, PDAs
or notebook computers.
• Wireless handsets
• Handheld PCs/PDAs
• LCD and camera modules
Product Description
The CM1431 is a family of pi-style EMI filter arrays
with ESD protection, which integrates four, six and
eight filters (C-R-C) in small form factor TDFN
0.40mm pitch packages. The CM1431 has
component values of 15pF-100Ω-15pF per channel.
The CM1431 has a cut-off frequency of 120MHz and
can be used in applications with data rates up to
48Mbps. The parts include ESD 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
protection diodes safely dissipate ESD strikes of
±15kV, well beyond the maximum requirement of the
IEC61000-4-2 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.
These devices are particularly well-suited for portable
electronics (e.g. wireless handsets, PDAs, notebook
computers) because of their small package and easy-
to-use pin assignments. In particular, the CM1431 is
ideal for EMI filtering and protecting data and control
lines for the I/O data ports, LCD display and camera
interface in mobile handsets.
The CM1431 is housed in space-saving, low-profile
8-, 12- and 16-lead TDFN packages with a 0.40mm
pitch and is available with lead-free finishing. This
smaller size TDFN package provides up to 42%
board space saving vs. the 0.50mm pitch TDFN
packages.
©2010 SCILLC. All rights reserved.
April 2010 Rev. 2
Publication Order Number:
CM1431/D