Product Overview

California Micro Devices introduces two new ESD (electrostatic discharge) devices that offer robust protection for high speed data interfaces found in emerging handset designs. These devices offer exceptional ESD protection while preserving superior signal integrity and are available in compact, low profile SOT and DFN packages. The CM1263 family of devices is based on CMD’s highly successful PicoGuard technology featuring ultra low capacitance ESD protection for high speed serial data interfaces, ideal for advanced handset products. The CM1248 family of devices, designed with CMD’s Centurion technology, offers robust ESD protection based on a low capacitance zener diode architecture. Centurion products offer high levels of ESD protection for high speed data interfaces to memory and media cards. CMD’s state-of-the-art packaging complements these devices, offering the highest level of ESD protection in the smallest footprint available.

Serial bus technology mandates high speed ESD protection
Most of today’s handset devices feature high resolution color displays, data ports and media card requirements. These functions are increasingly being tied together with new high speed serial interfaces based on standards such as the Mobile Display Digital Interface (MDDI), the Mobile Pixel Link (MPL), the Mobile Industry Processor Interface (MIPI) and USB 2.0 to take advantage of increased data bandwidth, reduced power requirements, lower EMI generation and overall packaging size reductions for cables and connectors. As fabrication geometries for system-on-chip (SOC) devices continue to diminish in size, susceptibility to ESD damage increases. Furthermore, as data rates approach ½ gigabit rates on these serial interfaces, these data lines cannot tolerate capacitive loads typically found in traditional ESD protection solutions. These new CMD products offer robust ESD protection while preserving signal integrity of these new high speed interfaces.

PicoGuard CM1263 family

The new CM1263 family of products features 0.85 pF input capacitance and protects against ESD strikes of up to ±8kV contact discharge per the IEC61000-4-2 level 4 standard. The low capacitance of these devices makes them ideal for protecting emerging interfaces such as MDDI, MIPI, and MPL that connect the main modules (baseband, application processor, display, and camera) in a wireless handset while preserving signal integrity. The CM1263 family offers designers layout flexibility with both two and six channel configurations. The two channel CM1263-02SE is offered in a small form factor SOT-563 package. The six channel CM1263-06DE is offered in a state-of-the art 0.4mm pitch uDFN package.

Centurion CM1248 family

The CM1248 family of devices, designed with CMD’s Centurion process technology, is ideal for protecting user accessible media cards, user interface keys and keypad assemblies which require high levels of ESD protection and signal integrity, but are less sensitive to capacitance. They feature robust ESD protection up to ±18kV contact discharge per the IEC61000-4-2 level 4 standard, with an input capacitance of 10pF to preserve signal integrity. Offered in multiple channel configurations with compact packages that occupy 50 percent less board space than competitive offerings, the CM1248 arrays provide a very compelling solution.

Layout and placement flexibility

Product	# of channels	Package	Dimensions (L X W X H)
CM1263-02SE	2	SOT-553	1.60mm X 1.60mm X 0.55mm, 0.50mm pitch
CM1263-06DE	6	uDFN	2.50mm X 1.35mm X 0.50mm, 0.40mm pitch
CM1248-04S9	4	SOT-953	1.00mm x 0.80mm x 0.45mm, 0.35mm pitch
CM1248-04QG	4	SuperDFN	1.45mm x 1.00mm x 0.50mm, 0.40mm pitch
CM1248-04QF	4	SuperDFN	1.25mm x 1.00mm x 0.50mm, 0.50mm pitch
CM1248-08DE	8	uDFN	1.70mm x 1.35mm x 0.50mm, 0.40mm pitch

Sampling, pricing and availability

Sample pricing for the CM1263-02SE and CM1263-06DE are $0.12 and $0.22 each respectively at 1,000 unit quantities. The CM1248-04S9, CM1248-04QG, CM1248-04QF are priced at $0.10 each and CM1248-08DE is priced at $0.20 each at 1,000 unit quantities. All products are RoHS compliant and currently available for sampling. Mass production is scheduled for Q1 2008.

The CMD logo, Centurion and PicoGuard are trademarks of California Micro Devices. All other trademarks are property of their respective owners.