May 14, 2001 - National Semiconductor Corporation (NYSE:NSM) today announced the LMX23xxU series of ultra-low power dual phase locked loop (PLL) frequency synthesizers, the latest addition to National's industry-leading family of PLLatinum? PLLs for wireless applications. This new family is pin- and software-compatible with the current LMX23xxL family of PLLs, providing easy upgrade, and consumes up to 43 percent less power. Lower power consumption creates a higher level of performance for cell phones - including longer handset talk and standby time, as well as longer battery life, and lower handset weight and size.
"With the LMX23xxU family of PLLatinum PLLs, designers of portable wireless communications devices such as wireless handsets and cellular telephone systems can minimize current consumption and still enjoy the best-in-class RF performance that all our PLLatinum PLLs provide," said Bill Weiss, product marketing manager for National's PLL product line. "By using 43 percent less power than the previous generation of PLLs, these new products provide the lowest power consumption available in the industry. In addition to providing numerous engineering and design benefits, lower power consumption creates a much more enjoyable experience for the ultimate consumer of wireless communications devices -- including additional talk time, longer battery life and smaller-sized handsets."
Today National, in partnership with Avnet Electronics Marketing, is also announcing the launch of an online tool in National's WEBENCH? design environment that allows wireless design engineers to design, simulate, and order a custom prototype wireless loop filter evaluation board that will be shipped to customers worldwide in five business days. This tool is optimized for use on the LMX23xxU family of PLLs.
About the LMX23xxU Family
The LMX23xxU family of six dual PLLs offers all the features of National's PLLatinum product line, including ultra low current consumption, low phase noise and Fastlock mode, plus a 3 to 6 dB improvement in spurial performance. Using a digital phase locked loop technique combined with a high quality reference oscillator and voltage controlled oscillator, the LMX23xxU family generates very stable, low noise local oscillator signals for up and down conversion in wireless communication devices.
LMX2330U, LMX2331U, LMX2332U, LMX2336U and LMX2377U products are designed to be used as local oscillators for RF and first IF of a dual conversion transceiver. LMX2377U offers the additional feature of a 1.8V data interface, making it compatible with low voltage processor I/O and control logic. LMX2335U is designed for applications requiring two independent transmit and receive PLLs.
The entire LMX23xxU family except for the LMX2335U is available in CSP24 and TSSOP20 packages. The LMX2335U is available in CSP16 and TSSOP16 packages.
Pricing and Availability
Samples of the LMX23xxU family are now available. The products will be in mass production in Q3 2001. Prices per unit start at $1.77 in 1,000 unit quantities. For more information on the family, visit National's web site at http://www.national.com/LMX23xxU. To view a high-resolution downloadable photo of the LMH23xxU family, visit National's photo gallery at http://www.national.com/company/pressroom/gallery/wireless.html.
About National Semiconductor
National Semiconductor is the premier analog company driving the information age. Combining real-world analog and state-of-the-art digital technology, the company is focused on the fast growing markets for wireless handsets; information appliances; information infrastructure; and display, imaging and human interface technologies. With headquarters in Santa Clara, California, National reported sales of $2.1 billion for its last fiscal year and has about 10,000 employees worldwide. Additional company and product information is available on the World Wide Web at www.national.com.
