National Semiconductor has introduced the industry’s first family of clock jitter cleaners capable of providing ultra low-noise clocks without external high-performance voltage-controlled crystal oscillator (VCXO) modules. Using a simple external crystal and cascaded PLLatinum architecture, National’s new clock jitter cleaners provide sub-200 femtosecond (fs) root-mean-square (RMS) jitter to improve system performance and accuracy. This leve...

National Semiconductor has introduced a new video clock reference design, now available as a module for the Xilinx ML571 serial digital video development board. National’s module improves the jitter performance of the ML571 board’s SERDES-optimized Virtex®-5 LXT field-programmable gate arrays (FPGAs) and enables popular FPGA-based video solutions to easily meet the stringent Society of Motion Picture and Television Engineers (SMPTE) 424M jit...

National Semiconductor has introduced the industry’s first triple-rate (3G/HD/SD) serial digital interface (SDI) and video clocking daughter card development kits that maximize system performance and simplify the design of new broadcast video equipment. The two daughter cards are compatible with development kits from Altera and Xilinx and include synthesizable field-programmable gate array (FPGA) source code and the entire SDI signal path and v...

National Semiconductor has introduced a triple-rate (3G/HD/SD) serial digital interface (SDI), dual-channel serializer and deserializer (SerDes) transceiver. With industry-leading jitter performance and two channels of receive and transmit on a single chip, National’s LMH4345 SerDes transceiver enables engineers to reduce board space, system cost and power consumption in multi-channel broadcast video equipment. The device is well-suited for use...

National Semiconductor has announced a family of automotive-grade low-voltage differential signalling (LVDS) 2 x 2 crosspoint switches that deliver the industry’s best signal integrity and noise immunity at data transmission rates up to 3.125 Gbps. These PowerWise crosspoints, which consume as little as 105 mW of power per channel, combine with National’s line drivers and receivers to reduce power consumption and heat dissipation in a wide ra...

National Semiconductor has introduced three new operational amplifiers (op amps) with integrated electromagnetic interference (EMI) filters that maintain the accuracy of analog systems by reducing the effects of radio frequency (RF) interference. The LMV83x op amps deliver the industry’s highest EMI rejection ratio (EMIRR) of 120 dB, thereby eliminating EMI-induced errors. They also feature 3 MHz unity gain bandwidth while operating on only 240...

Building on its leadership in power management and energy-efficient products, National Semiconductor has announced that it has entered the photovoltaic market with new technology designed to increase the overall energy output of solar electric power generating systems. National’s SolarMagic technology extracts the maximum power efficiency of each photovoltaic panel, even when some panels in the array are compromised by shading, debris or inher...

National Semiconductor has introduced what it says is the industry’s smallest 4 MHz synchronous step-down DC-DC converter that provides up to a 1A output current over an input voltage range of 2.3V to 5.5V. The LM3691 DC-DC converter is optimized for powering high-performance processors from a single Li-Ion cell battery in mobile phones, personal media players and other mobile devices. A member of National’s PowerWise® energy-efficient produ...