Press Release
California
Micro Devices Delivers EMI Filters in Ultra Thin Packages for Wireless
Handset Applications
Praetorian® and Centurion™
EMI Filter ASIP™ Devices Address Critical Performance and Space
Requirements
MILPITAS, Calif., -- Oct. 02, 2006
-- California
Micro Devices (NASDAQ: CAMD) today announced a new family of packaged
Praetorian®and Centurion EMI (electromagnetic interference)
filter ASIP (Application Specific Integrated Passive™)
devices that feature superior EMI filtering performance combined with
robust ESD (electrostatic discharge) protection in the thinnest and
most compact packages available for use in mobile handsets. The new
CM16XX series ASIP devices are available in 0.4mm pitch uDFN
packages with a typical thickness of 0.50mm, providing space savings
of up to 42 percent compared to existing 0.5mm pitch DFN packages. The
new family of ASIP products features the CM1690 Praetorian®architecture LC EMI filter ASIP device with ESD protection.
Praetorian®architecture LC ASIP devices, which feature
the industry’s highest level of EMI filter performance for high
resolution display and imager interfaces, are now available in the industry’s
smallest form factor package.
Market Trends
With the adoption of higher resolution color
displays and camera imagers spreading to a larger segment of the handset
market, there is a growing need for EMI filters that offer higher cutoff
frequencies while providing a greater level of attenuation performance
at the frequency band of 800 MHz through 3.0GHz. Additionally, with
a continuing trend toward smaller and thinner handsets, designers are
seeking thinner profile solutions that will fit within the critical
space constraints of these new designs. The new CM16XX family of small
form factor uDFN EMI filter ASIP devices from CMD address these
critical filter performance requirements, along with innovative new
packaging that helps wireless handset designers solve critical space
constraint issues. Engineers no longer have to compromise performance
for form factor.
Key Features
The new CM16XX family of uDFN EMI filter
ASIP devices offers handset designers the flexibility to choose a solution
optimized for both price and performance with a series of pin compatible
Centurion RC and Praetorian®LC architecture EMI filter
ASIP devices. Attenuation is a critical factor in selecting
filters; the uDFN offerings from CMD provide superior attenuation in
the frequency band from 800 MHz to 3.0GHz. Superior filter performance
across all channels is achieved through the large area ground pad on
the bottom of the uDFN package which minimizes ground inductance. The
CM16XX series of uDFN filter ASIP devices is backward compatible
with CMD’s previous offerings of 0.4 mm pitch TDFNs as well as
our competitors’ offerings of TDFN and DFN packages, so engineers
can significantly reduce the thickness of their mobile products without
having to redesign their PC boards. Each of the new devices provides
ESD protection up to ±15kV contact discharge per IEC61000-4-2
Level 4 specification, which makes them suitable for practically all
mobile applications.
Significant Space Savings
The Praetorian®and Centurion uDFN product families
are available in 4, 6, and 8 channel configurations. The new 4 channel
devices require 42 percent less board space than with competing filters
using 0.5mm pitch TDFN packages. For the 6 channel and 8 channel versions,
space savings of approximately 30 percent can be achieved. The package
dimensions of the 4, 6 and 8 channel versions are: 1.7mm x 1.35mm (8
leads), 2.5mm x 1.35mm (12 leads) and 3.3mm x 1.35mm (16 leads) respectively.
CMD’s CM16XX family of uDFN products should be considered for
new designs which have critical height constraints, and by all designs
which would like to exploit the superior filter performance offered
by these low profile parts.
The following table outlines the general
specifications of interest to designers. More complete descriptions,
including specifications and graphs, are available for download at our
website, www.cmd.com.
| PRODUCT FAMILY | ARCHITECTURE | FREQUENCY CUTOFF | TYPICAL INSERTION LOSS | ATTENUATION | ||
| 1GHz | 2GHz | 3GHz | ||||
| CM1690 series | Praetorian®LC | 330MHz | -1dB | -35dB | -45dB | -43dB |
| CM1630 series | Centurion RC | 175 MHz | -6dB | -30dB | -40dB | -35dB |
| CM1631 series | Centurion RC | 100 MHz | -6dB | -40dB | -45dB | -40dB |
| CM1636 series | Centurion RC | 105 MHz | -10dB | -40dB | -40dB | -37dB |
| CM1637 series | Centurion RC | 200 MHz | -10dB | -35dB | -43dB | -40dB |
Pricing and Availability
Sample pricing ranges between $0.32 and $0.61 each in 1,000 unit quantities,
depending on channel configuration. Production quantities are available
at standard lead time. They are only available in a lead free version.
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 electronics
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.cmd.com.
ASIP, Application Specific Integrated Passive, Centurion and Praetorian®are trademarks of California Micro Devices. All other trademarks are property of their respective owners.
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