Press Release
California Micro Devices
Introduces New Praetorian™ EMI Filters for Wireless Handsets
CM1419 Inductor-Based Solution Offers
Unsurpassed Performance in Most
Compact Footprint for Audio Applications
MILPITAS, Calif., -- Dec. 19, 2005
-- California
Micro Devices (NASDAQ: CAMD) today introduced the CM1418 and CM1419, the
newest members of the Praetorian™ ASIP™
(Application Specific Integrated Passive™) EMI (electromagnetic
interference) inductor-based filter array family, offering superior filter
performance combined with robust ESD (electrostatic discharge) protection.
The CM1419 device is tailored for audio applications in wireless handsets,
where minimizing insertion loss is absolutely critical. Traditional filters
based on resistor-capacitor (R-C) architectures result in significant
power loss. To address this requirement, CMD has utilized its Praetorian™
process technology allowing the integration of spiral inductors with capacitors,
diodes and resistors on a single chip, resulting in unprecedented attenuation
levels and minimal insertion loss in a compact 5 bump CSP (Chip Scale
Package) format. The CM1418 features the same electrical characteristics
in a larger 6 bump footprint.
Key Features
The CM1419 is an inductor-based EMI filter array with ESD protection which
integrates two Pi filters (C-L-C). Component values are 117pF-3.0nH-117pF
for each channel. The ESD diodes connected to the filter ports are designed
and characterized to safely dissipate ESD strikes of ±30kV, 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.
The CM1419 features attenuation levels greater than -40dB in the critical
800 MHz to 2.1 GHz frequencies range. It is housed in a cost effective,
ultra compact 5-bump, 0.5mm pitch Chip Scale Package (CSP) of 1.59mm x
1.22mm.
For Audio Applications
The CM1419 is particularly well suited for speaker applications in mobile
handsets because it features an equivalent series resistance (ESR) of
only 0.28Ohms typical, which needs to be as low as possible in order to
minimize insertion loss, contributing to better audio output as well as
extended battery life. Combined with an extremely small footprint and
unmatched attenuation levels, the CM1419 addresses all critical requirements
from wireless handset designers: best electrical performance, most integrated
and compact format, cost effectiveness and power savings.
Pricing and Availability
Both the CM1419 and CM1418 are currently sampling, and pricing starts
at $0.39 and $0.46 each in 1,000 units respectively. Production is scheduled
for Q1 2006. Both products are offered in lead free CSP packaging with
CMD’s optional OptiGuard™ coating for increased robustness
and durability.
About California Micro Devices Corporation
California Micro Devices Corporation is a leading supplier of application specific
analog semiconductor products for the mobile handset, personal computer and digital
consumer electronic markets. Key products include Application Specific Integrated
Passive™ (ASIP) devices and selected high value mixed
signal ICs. Detailed corporate and product information may be accessed at www.calmicro.com.
ASIP™, Application Specific
Integrated Passive™ , OptiGuard™ and Praetorian™
are trademarks of California Micro Devices. All other trademarks are property
of their respective owners.
