TDK Semiconductor Expands STS-3/STM-1 Transceiver Family; New Chip Supports 311MHz Clock.Business Editors & High-Tech Writers TUSTIN, Calif.--(BUSINESS WIRE)--March 28, 2002 TDK TDK Türk Dil Kurumu (Turkish Language Council) TDK The Dark Knights (gaming clan) TDK Tokyo Denkikagaku Kogyo KK (TDK Electronics Co. Ltd. Semiconductor Corp., a leader in the design and manufacture of communications semiconductors for worldwide markets, has added a new SONET/SDH line interface unit (LIU LIU Linköpings Universitet (Sweden) LIU Long Island University (New York) LIU Line Interface Unit LIU Lightguide Interconnection Unit (AT&T) LIU Laugh It Up ) to its family of broadband communication ICs. This new device, the 78P2254, operates at 155.52Mbit/s (STS-3 or STM-1) rates and provides a synchronized clock that can be used for backplanes operating at 311MHz speeds. The 78P2254 interfaces to a 75-ohm coaxial cable using CMI (Computer-Managed Instruction) Using computers to organize and manage an instructional program for students. It helps create test materials, tracks the results and monitors student progress. coding and provides all of the necessary transmit and receive circuitry to interface to a digital framer via serial PECL PECL PEAR (PHP Extension and Application Repository) Extended Code Language PECL Principles of European Contract Law PECL Positive Emitter Coupled Logic PECL Pseudo-Emitter Coupled Logic PECL Positive-Referenced Emitter Coupled Logic or parallel 4 or 8 bit 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. . Produced in a BiCMOS technology, the device is built for high performance and low power operation. With a 3.3V or 5V power supply and 64-pin TQFP See QFP. package, the 78P2254 can be easily integrated into new or existing equipment designs. "The 78P2254 will generate a 311MHz transmit clock to allow the transmit CMI data to be retimed prior to transmission from the line card, for example," said Michelle Ng, broadband product line manager. "The new chip was developed to help our customers improve the robustness of their designs." The 78P2254 is an ideal choice for 311MHz backplane applications, WAN/ATM transmission, DSLAMs, digital cross-connects, add/drop multiplexers, test equipment, and digital loop carrier In telephone communications, a technology that increases the number of channels in the local loop by converting analog signals to digital and multiplexing them back to the end office. (DLC (1) (Data Link Control) See data link and OSI. (2) (Data Link Control) The data link layer protocol (layer 2) that is used in IBM's SNA networking. See SNA, data link protocol and Microsoft DLC. ) equipment where low power consumption, small size, and high performance are required. The 78P2254 single chip transmitter includes a PLL PLL - phase-locked loop to multiply the 19.44MHz (SONET) reference clock to the transmission frequency. The receiver provides adaptive equalization for accurate clock and data recovery. Analog and digital loopback modes are also provided to aid system diagnostics. The transmit PLO also generates a 311MHz synchronous differential clock with the same jitter specifications as the transmitter. Pricing and Availability The 78P2254 is currently sampling with production quantities available early next quarter. The devices are offered in a 64-pin TFQP version and start at $29.36 in 1K quantities. Additional product information and the name of a TDK Semiconductor representative can be obtained by visiting www.tdksemiconductor.com, sending an e-mail to support@tdksemiconductor.com or by calling 714/508-8800. TDK Semiconductor's Family of OC-3/STM-1/STS-3/E4 Transceivers TDK Semiconductor offers a family of SONET/SDH line interface unit (LIU) devices operating at either 155.52Mbit/s (OC-3/STM-1/STS-3) or 139.264Mbit/s (E4) rates. The devices automatically adjust for operations with either a 3.3V or 5V power supply and are packaged in a 64-pin TQFP. -- 78P2252 -- OC-3/STM-1 single line interface unit for optical fiber -- 78P2253 -- OC-3/STM-1/STS-3/E4 single line interface unit for coaxial cable, optical fiber -- 78P2254 -- STS-3/STM-1 single line interface unit for coaxial cable with 311MHz clock About TDK Semiconductor Corp. TDK Semiconductor, part of the $5.6 billion TDK Corp.(NYSE NYSE See: New York Stock Exchange :TDK), is a leader in advanced technology IC solutions for communications markets. The company designs and manufactures semiconductor solutions for local- and wide-area networking, embedded modem subsystems, set-top boxes and digital TV applications. Its products are used globally for connectivity and data acquisition. Note to Editors: Download high-resolution images of products included in the release at: http://www.tdksemiconductor.com/news |
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