Atmel Introduces New Direct Quadrature Modulator with Excellent Noise Floor Performance.Business Editors/High-Tech Writers HEILBRONN, Germany--(BUSINESS WIRE)--Dec. 4, 2001 Atmel(R) Corporation (Nasdaq:ATML ATML Automatic Test Markup Language ATML Automated Test Markup Language ) announced today the availability of the single 5-V direct quadrature modulator T0790 operating at 800-2500 MHz. This new standard RF device manufactured in Atmel's advanced SiGe technology provides outstanding noise floor performance. The broad range of applications includes digital infrastructure systems for cellular mobile telephones such as GSM/ DCS/ PCS/ UMTS/ CDMA (Code Division Multiple Access) A method for transmitting simultaneous signals over a shared portion of the spectrum. The foremost application of CDMA is the digital cellular phone technology from QUALCOMM that operates in the 800 MHz band and 1.9 GHz PCS band. 2000 and ISM (see footnote 1) band transceivers which can perform GMSK/ QPSK/ QAM/ 8PSK (see footnote 2) modulation schemes. The T0790's main benefit is its outstanding performance. Due to the SiGe technology used, the direct quadrature modulator shows excellent noise floor performance (-154 dBm) for improved transmit quality. This noise behavior even exceeds the GSM standard requirements regarding the overall transmit path. Moreover, the T0790 quadrature modulator provides very good carrier and sideband sideband, any frequency component of a modulated carrier wave other than the frequency of the carrier wave itself, i.e., any frequency added to the carrier as a result of modulation; sidebands carry the actual information while the carrier contributes none at all. suppression to improve the quality of the end signal without the need for an oscillator driver and extra filters, as with conventional solutions. Because the T0790 is less complex and not so highly integrated as very specialized RF components, it can be implemented very easily and quickly. All I/Os of the new device are matched to 50 Ohms, so no passive circuitry is needed. The resulting low external component count, as well as its wide applicability, combine to speed up and simplify design-ins for faster time to market at reduced costs. The baseband input has a wide frequency range and thus supports a broad range of applications. "We are proud to present with the T0790 a real breakthrough product that combines universal usability and outstanding performance," Carsten Friedrich, Atmel's marketing manager for Standard RF products said. "Apart from the performance, quality and reliability stand out as key features for infrastructure applications. Because the T0790 is manufactured using our advanced SiGe technology, the device features low thermal sensitivity which results in high reliability and longer life time of the device." Samples of the T0790 in small SSOP SSOP Shrink Small Outline Package SSOP Sanitation Standard Operating Procedures (USDA) SSOP Sanitary Standard Operating Procedures SSOP Sharescan-Open Platform (Ecopy) SSOP Site Security Operational Procedures 16 packages are available now, pricing starts at 5.50 US$ (10 k). footnote 1: GSM = Global Standard for Mobile communication DCS = Digital Communication System (GSM at 1800 MHz) PCS = Personal Communication Service UMTS (Universal Mobile Telecommunications System) The GSM implementation of the 3G wireless phone system. Part of IMT-2000, UMTS provides service in the 2 GHz band and offers global roaming and personalized features. = Universal Mobile Telephone System (wideband CDMA) CDMA = Code Division Multiple Access CDMA2000 = Wideband CDMA approach ISM = North American 900-MHz Industrial/ Scientific/ Medical band footnote 2: GMSK GMSK Gaussian Minimum Shift Keying = Gaussian Minimum Shift Keying QPSK (Quadrature Phase Shift Keying) A phase modulation technique that transmits two bits in four modulation states. See PSK and phase modulation. = Quadrature Phase Shift Keying QAM = Quadrature Amplitude Modulation See QAM. Quadrature Amplitude Modulation - (QAM) A method for encoding digital data in an analog signal in which each combination of phase and amplitude represents one of sixteen four bit patterns. This is required for fax transmission at 9600 bits per second. 8PSK = Octuple oc·tu·ple adj. 1. Consisting of eight parts or members. 2. Eight times as much in size, strength, number, or amount. n. An eightfold amount or number. tr. & intr.v. Phase Shift Keying About Atmel Founded in 1984, Atmel Corporation is headquartered in San Jose, Calif., with manufacturing facilities in North America and Europe. Atmel designs, manufactures and markets worldwide, advanced logic, mixed-signal, nonvolatile memory and RF semiconductors. Atmel is also a leading provider of system-level integration semiconductor solutions using CMOS (Complementary Metal Oxide Semiconductor) Pronounced "c-moss." The most widely used integrated circuit design. It is found in almost every electronic product from handheld devices to mainframes. , BiCMOS, bipolar SiGe, and high-voltage BCDMOS process technologies. Information Atmel's wireless communication information may be retrieved at www.atmel-wm.com. For more information on the T0790 go to: http://www.atmel-wm.com/products/gab_prod_card.php3?id=1581 Note to Editors: Atmel, the Atmel logo and combinations thereof and others contained herein, are trademarks of Atmel Corporation. Terms and product names in this document may be the trademarks of others. |
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