Products for National Semiconductor:
Authorized Distributors for National Semiconductor:
Recent Articles for National Semiconductor:
PMIC chipset makes solar panels smarter
The in-panel SM3320 SolarMagic chipset, provides junction box and module manufacturers with the capability to ensure the highest efficiency . . .
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RMS RF power detector offers high precision
The PowerWiseLMH2120 linear RMS RF power detector offers high precision with up to 40-dB dynamic range. The part increases . . .
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Power module family suits harsh environments
Nine SIMPLE SWITCHER power modules feature an extended operating temperature range, and provide vibration and drop testing to suit . . .
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Analog audio subsystem integrates noise reduction
Suited for use in smart phones and full-featured phones, the LM49155 analog audio subsystem is offered as the first . . .
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PMIC chipset makes solar panels smarter
The in-panel SM3320 SolarMagic chipset, provides junction box and module manufacturers with the capability to ensure the highest efficiency . . .
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Videos for National Semiconductor:
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S2K 2009 - Cardiff, Wales
Natiola Semiconductor
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Gerry Edwards, VP WW fab operations and quality, presents 'How are National Semiconductor changing and preparing for the next upturn and what are the consequences for manufacturing in UK'
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National Semiconductor - ADC12D1x00
ADC12D1x00 - fastest 12-bit ADC
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Talk with Jon Baldwin, High Speed Signal Path Marketing Director, about their new high speed 12-bit ADCs at National's offices in Santa Clara, CA
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Emulated ripple mode
LM3102 evaluation board
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Measurement techniques of output noise and ripple using small ground wire
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Reference Design Documents for National Semiconductor:
RD-179 - High-IF Sub-sampling Receiver Subsystem Reference Design Kit
The SP16160CH1RB demonstrates a high-IF sampling receiver subsystem that provides signal amplification, digitization and clocking as used in wireless infrastructure systems. The subsystem includes the ADC16DV160 analog-to-digital converter (ADC), LMH6517 Digitally-controlled Variable-Gain Amplifier (DVGA) and LMK04031B precision clock conditioner. The subsystem addresses multi-carrier, multi-standard wireless basestations addressing GSM/EDGE, WCDMA, LTE and WiMAX standards.
The SP16160CH1RB delivers an IF chain receiver sensitivity of -105 dBm, with a 9 dB carrier-to-noise ratio in a 200 kHz channel, at 192 MHz input IF. With the digitally-controlled variable gain amplifier (DVGA) set at a maximum gain of 22 dB, the sensitivity is limited primarily by the noise contribution of the DVGA. In the presence of a strong blocker, with the DVGA gain set at 12 dB and blocker level kept at 1.6 dBm input to the ADC, the SP16160CH1RB board delivers sensitivity of -86 dBm. In this blocking condition, the receiver sensitivity is determined by the ADC?s high spurious-free dynamic range (SFDR).
In the signal path, the subsystem provides impedance-matched, single-to-differential conversion through a 1:4 transformer and a 31.5 dB amplification gain range in 0.5 dB steps through the DVGA. The anti-aliasing filter at the output of the DVGA provides noise filtering and over 40 dB harmonic suppression by selecting the 20 MHz signal band centered at 192 Hz. The signal is then sampled and quantized by the ADC into 16-bit words using a 153.6 MHz CMOS clock.
In the clock path, a LMK04031B clock conditioning circuit operates with a 61.44 MHz reference oscillator and 76.8 Hz VCXO to provide the 153.6 MHz CMOS sampling clock. The clock output is also filtered and buffered to provide very low broadband noise for less than 200 fs total jitter over the clock input bandwidth of the ADC.
To simplify evaluation of the SP16160CH1RB, National offers the WaveVision 5.1 data capture board
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High-Performance Video Clock Module for Xilinx Virtex-5 LXT FPGAs
National's ML571-1982CLK clock module plugs into a Xilinx Virtex-5 development platform to create a complete video timing reference design for triple-rate (3G/HD/SD) SDI applications.
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SDI/SDV Evaluation Boards
SDI evaluation boards are available for a nominal charge that demonstrate the basic operation of the SDI/SDH/SDV devices. The evaluation boards can be ordered through National's Distributors. The table provides Product Family, PCB Description, NSID of devices on the PCB, and the evaluation board order number.
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Triple-rate SDI & Video Clocking Daughter Card for Xilinx Spartan-3A/3E FPGAs
National Semiconductor in collaboration with Avnet and Xilinx developed a triple-rate SDI and video clocking daughter card for the Xilinx Spartan-3A/3E development kits. The combined solution provides broadcast video system designers a comprehensive platform for rapid evaluation and prototyping of new designs to reduce time to market. The 3G SDI SerDes evaluation system consists of Xilinx XtremeDSP starter platform Spartan-3A DSP 1800A edition (sold separately by Xilinx), National's SDI video and clocking daughter card (SDXILEVK), SDXILEVK Schematics, Bill of Materials (BOM)and FPGA IP.
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Triple-rate SDI & Video Clocking Daughter Card for Altera Cyclone III FPGAs
National Semiconductor in collaboration with Altera developed a triple-rate SDI and video clocking daughter card for the Altera Cyclone III development kit. The combined solution provides broadcast video system designers a comprehensive platform for rapid evaluation and prototyping of new designs to reduce time to market. The 3G SDI SerDes evaluation system consists of: Cyclone III FPGA development board (sold separately by Altera, National's SDI video and clocking daughter card, comprehensive user manual, schematics, and bill of materials (BOM).
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eeTechBriefs –
15-Minute on-demand multimedia web casts covering the latest product developments.
Save time. Design with ease. Get to market faster. Learn more about National Semiconductor’s SIMPLE SWITCHER® power modules and how they deliver an all-in-one power solution with superior EMI and thermal performance in an innovative package. Be one of the first 100 registrants to watch the seminar and complete the survey to win a free SIMPLE SWITCHER power module t-shirt.
The IEEE 1588 precision time protocol (PTP) allows designers to synchronize slave clocks to a master clock over Ethernet. By using the same time base for all events and timestamps, networked devices can be synchronized with exceptional precision. The DP83640 Precision PHYTER® device from National Semiconductor delivers the highest level of precision clock synchronization for real time industrial connectivity based on the IEEE 1588 standard.
View this brief Webcast to learn more about the following design topics:
• What is the IEEE 1588 PTP and how does it synchronize a network?
• Network topology, time adjustments and rate correction
• Adding PTP synchronization to a system
• Implementation options and considerations
• DP83640 precision PHYTER features and benefits
By attending this event, you’ll learn how the 1588 PTP fits into the Ethernet standard and how you can achieve new levels of precision in your next application without increasing development or total system costs.
Are you constantly looking for ways to simplify the design process and get new designs optimized and to market faster? If so, National Semiconductor can help. National is introducing 2 new SIMPLE SWITCHER® families complemented by a robust set of design and optimization tools.
Join National Semiconductor’s Courtney Burry for a 12-minute Webcast discussing:
• The New WEBENCH® Power Designer
• LM315x Synchronous SIMPLE SWITCHER® Controller Series
• LM2267x and LM22680 SIMPLE SWITCHER® Regulator Series
• Additional design support and tools
In less than 12 minutes, you'll gain an understanding of how to design flexible power supply solutions without compromising ease-of-use or reliability. Also, Webcast viewers will be eligible to win free evaluation boards. You’ll need to act fast though as quantities are limited!
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