The SX8650 supports the 400 kHz fast-mode IC serial bus data protocol and has an operating voltage from 1.65V to 3.7V. It features a highly accurate 12-bit analog-to-digital converter for coordinates and touch pressure measurement, and is able to achieve an equivalent throughput output rate of 50 kSPS. With current consumption as little as 23uA at 8 kSPS and the ability to enter low power states automatically between conversions, this controller is the ideal choice for portable and battery powered 4-wire resistive touchscreen devices. The SX8650 is a complete touchscreen solution incorporating a dedicated hardware / RESET pin, a built-in preprocessing algorithm for data averaging that greatly reduces bus loading and further minimizes the overall system power budget, as well as on-chip programmable settling time capability to optimize the throughput rates for a vast variety of touch panel designs.

"The SX8650 addresses the field returns issue prevalent in touchscreen applications due to destructive ESD events. Each analog input was specifically designed to enable robust ESD protection up to ±15kV in both human body model (HBM) and IEC 61000-4-2 standards, thus eliminating the need for external transient voltage suppression devices while minimizing cost and board space," said Sam Massih, Product Line Manager, Consumer Analog Products for Semtech. "Coupled with the extremely low operating current and tiny footprint, this makes Semtech's SX8650 the premier solution for today's portable touch-sensing devices."

The SX8650 is available in both a 3mm x 3mm 12-DFN and 1.46mm x 1.96mm 12-WLCSP space-saving packages and is guaranteed to operate over the extended (-40degC to +85degC) temperature range.

Key Features of the SX8650

-- Best-in-class on-chip ESD protection: -- ±15kV HBM (X+, X-, Y+, Y-)

-- ±2kV CDM

-- ±25kV air gap discharge

-- ±15kV contact discharge

-- ±300V MM

-- Extremely low power consumption: -- 23uA @ 1.8V (8 kSPS)

-- 70uA @ 1.8V (35 kSPS)

-- Ultra small footprint solution: 3mm x 3mm 12-DFN and 1.46mm x 1.96mm 12-WLCSP

-- Integrated preprocessing block (median and averaging filter)

-- Fully programmable settling time

-- Equivalent throughput up to 50 kSPS

-- High precision 12-bit resolution

-- Touch pressure measurement

-- Single 1.65V to 3.7V supply and reference

-- Dedicated hardware reset pin

-- 400 kHz fast-mode IC interface

Pricing and Availability

The SX8650 (order codes: SX8650IWLTRT, SX8650ICSTRT) is available in production quantities and is priced at $0.76 for DFN packages and $0.78 for WLCSP packages in 3,000-piece lots. Semtech offers comprehensive design assistance, including field- and factory-based support. Data sheets, volume pricing, and delivery quotes, as well as evaluation kits and samples, are available by contacting info@semtech.com.

About Semtech

Semtech Corporation is a leading supplier of analog and mixed-signal semiconductors for high-end consumer, computing, communications and industrial equipment. Products are designed to benefit the engineering community as well as the global community. The company is dedicated to reducing the impact it, and its products, have on environment. Internal green programs seek to reduce waste through material and manufacturing control, use of green technology and designing for resource reduction. Publicly traded since 1967, Semtech is listed on the NASDAQ Global Select Market under the symbol SMTC. For more information, visit its http://www.semtech.com.

Semtech and the Semtech logo are marks of Semtech Corporation.

SOURCE: Semtech Corporation

Semtech Corporation 
Pauline Cadena, 805-389-2755 
pcadena@semtech.com

These parts bring to the MicroClamp platform Semtech's proprietary EPD process technology, an improvement over silicon avalanche diode processes that delivers low standoff voltages to reduce leakage current and capacitance. Semtech became the first company to debut a true 2.5V TVS when it launched the four-line, ultra-low capacitance RClamp2504N and RClamp2504P in May 2009.

The use of low voltage chipsets also helps these smartphones to have a longer battery life. With standard features including cameras, Internet browsing, email and texting in addition to voice communications, smartphone designers need to take advantage of every opportunity to extend the battery life, such as choosing parts with low leakage current like the uClamp25x1T devices, which feature a 10nA leakage current. Both TVS devices come in ultra small 1.0 x 0.6 x 0.4mm package to provide flexible protection anywhere it's needed.

The uClamp25x1T devices provide industry-standard protection from electrostatic discharge (ESD), lightning, electrical fast transients (EFT), and cable discharge events (CDE). The uClamp2501T is unidirectional and the uClamp2511T is bidirectional. The uClamp2511T offers a low capacitance of 10pF maximum, while the uClamp2501T is rated at 30pF.

"Portable-system designers that need to balance the increased battery life made possible by low voltage chipsets with the reliability that comes with high-quality protection now have a great option," said Rick Hansen, Semtech Marketing Director for Protection Products. "Providing the high-quality protection of the MicroClamp platform with both low-voltage and low leakage is a significant breakthrough."

While these products offer designers the benefit of significant board space savings, their small size and RoHS & WEEE compliance also contributes to energy conservation and hazardous waste reduction.

Key Features of the uClamp2501T and uClamp2511T

-- Transient protection for data lines to IEC 61000-4-2 (ESD) ±15kV (air), ±8kV (contact), IEC 61000-4-4 (EFT) 40A (tp = 5/50ns) and Cable Discharge Events (CDE)

-- Ultra-small package (1.0 x 0.6 x 0.4mm)

-- Low leakage current: <10nA typical (VR=2.5V)

-- Low Operating voltage: 2.5V

-- Low capacitance: <10pF (uClamp2511T)

-- Low capacitance: <30pF (uClamp2501T)

-- Protects one data line

-- Semtech Proprietary low voltage technology

Pricing and Availability

The uClamp2511T (order code: uClamp2511T.TCT) is available immediately in production quantities and is priced at $0.24 each in 3,000-piece lots. The uClamp2501T (order code: uClamp2501T.TCT) is available immediately in production quantities and is priced at $0.19 each in 3,000-piece lots. Semtech offers comprehensive design assistance, including field- and factory-based support. Data sheets, volume pricing, and delivery quotes, as well as evaluation kits and samples, are available by contacting info@semtech.com.

About Semtech

Semtech Corporation is a leading supplier of analog and mixed-signal semiconductors for high-end consumer, computing, communications and industrial equipment. Products are designed to benefit the engineering community as well as the global community. The company is dedicated to reducing the impact it, and its products, have on the environment. Internal green programs seek to reduce waste through material and manufacturing control, use of green technology and designing for resource reduction. Publicly traded since 1967, Semtech is listed on the NASDAQ Global Select Market under the symbol SMTC. For more information, visit http://www.semtech.com.

Semtech, the Semtech logo, and MicroClamp are marks of Semtech Corporation.

SOURCE: Semtech Corp.

Semtech Corporation 
Pauline Cadena, 805-389-2755 
pcadena@semtech.com

Expected next investor conference call information:
Conference Call Date: 11/5/2009
Conference Call Time (ET): 5:00 PM
Conference Call URL: http://www.smtc.com/en/investorrelations/financials/default.aspx

In many modern handheld systems, the usual IC serial bus is becoming over-burdened with too many slave ICs. In such cases, the SemPulse(R) interface is highly preferred because it provides a simple means of programming many features while consuming only one GPIO on the baseband or applications/graphics processor. The interface is simple, robust, and very tolerant of sloppy timing caused by interrupts elsewhere in the system. Semtech's applications team provides full design-in support with sample code and pre-written drivers to minimize the customer's software development efforts.

"The SC654, SC657, and SC658 are perfectly optimized to power backlights in next-generation mobile handheld applications where size is the key factor," said Karl Volk, Semtech Director of Marketing for Handheld Power. "This new platform sets the benchmark for its performance and sophisticated features within a tiny, thin and reliable footprint, thereby increasing value to our customers."

The SC654, SC657, and SC658 are available in 2x2mm lead-free 14-pin MLPQ-UT package, are halogen-free, and comply with the European Union's Restriction on Hazardous Substances in Electrical and Electronic Equipment (RoHS) directive to meet worldwide environmental and regulatory requirements.

Key Features of the SC654, SC657, and SC658

-- Input supply voltage range -- 2.9V to 5.5V

-- Charge pump modes -- 1x, 1.5x and 2x

-- Six (SC654), five (SC657) or four (SC658) adjustable current sinks

-- One-wire SemPulse(R) interface

-- 29 current settings from 0 to 25mA

-- Current accuracy ±1.5% typical

-- Current matching ±0.5% typical

-- Individual on/off control for each LED

-- Up to three zones/banks of LED current settings

-- Optional fade-in/out with three programmable rates

-- Ultra-thin MLPQ package -- 2 x 2 x 0.6 mm

Pricing and Availability

The SC654 (Order code: SC654ULTRT) is priced at $0.60 each in 3,000-piece lots. The SC657 (Order code: SC657ULTRT) is priced at $0.55 each in 3,000-piece lots. The SC658 (Order code: SC658ULTRT) is priced at $0.51 each in 3,000-piece lots. Each device is available immediately in production quantities. Evaluation boards (SC654EVB, SC657EVB, and SC658EVB) are also available. Semtech offers comprehensive design assistance, including field- and factory-based support. Data sheets, volume pricing, and delivery quotes, as well as evaluation kits and samples, are available by contacting info@semtech.com.

About Semtech

Semtech Corporation is a leading supplier of analog and mixed-signal semiconductors for high-end consumer, computing, communications and industrial equipment. Products are designed to benefit the engineering community as well as the global community. The company is dedicated to reducing the impact it, and its products, have on the environment. Internal green programs seek to reduce waste through material and manufacturing control, use of green technology and designing for resource reduction. Publicly traded since 1967, Semtech is listed on the NASDAQ Global Select Market under the symbol SMTC. For more information, visit http://www.semtech.com.

Semtech, the Semtech logo, mAhXLife and SemPulse are marks of Semtech Corporation.

SOURCE: Semtech Corporation

Semtech Corporation 
Pauline Cadena 
805-389-2755 
pcadena@semtech.com