What: National demonstrates its high-performance analog chip solutions at NAB
Where: Booth N1720 at Las Vegas Convention Center, Las Vegas, Nevada
When: April 14 – 17, 2008
SANTA CLARA, Calif. – April 8, 2008 – National Semiconductor Corp. (NYSE:NSM) will showcase its latest industry-leading analog-intensive video products for the professional and broadcast markets at the National Association of Broadcasters (NAB) show, April 14-17, 2008, in Las Vegas, Nevada. National will conduct live demonstrations of its analog solutions, including a 3 Gbps (3G) serial digital interface (SDI) product family addressing the new Society of Motion Picture and Television Engineers (SMPTE) 424M specification, an analog video matrix switcher, a low-jitter video clock generator, and a low-noise audio buffer teamed with operational amplifiers (op amps) that deliver ultra-low distortion and high-fidelity performance.
National Broadcast Video Demonstrations — Booth N1720
- 3G/HD/SD-SDI Chipset: Demonstration of industry-best signal integrity using National’s low-jitter LMH0344 adaptive equalizer, LMH0356 reclocker and LMH0303 cable driver with cable detection in combination with a high-speed interconnect. The demonstration, a test commonly used to verify signal integrity in video routers, features a signal generator driving a stressful 2.97 Gbps pathological source signal into the input stage of National's 24-channel SDI matrix. The recovered signal at the output is re-routed back to the input multiple times in error-free iteration, illustrating the leading pathological signal integrity performance of National's chipset.
- 3G SDI Serializer and Deserializer: Demonstration of jitter performance and flexibility of the industry's first discrete 3 Gbps multi-rate SDI serializer and deserializer. The LMH0340 and LMH0341 products are demonstrated in dual link HD-SDI and single link 3G-SDI modes interfacing with National's triple-rate (3G/HD/SD) SDI firmware running on popular low-cost field-programmable gate array (FPGA) devices. This demonstration system connects to a third-party board hosting a Virtex-5 FPGA validating cross-platform compliance.
- Analog Video Matrix Switcher: Using National’s LMH6584 and LMH6585 wide-band 32 x 16 analog crosspoint switches, designers can increase picture resolution to QXGA (2048 x 1536) and beyond in various wideband video applications, including studio monitoring/production video systems, conference room video systems, KVM systems and wide-band routers and switches. The LMH6584/85 crosspoints provide 400 MHz, 2 Vpp large-signal bandwidth and a low channel-to-channel crosstalk of -52 dBc at 10 MHz to improve picture clarity by minimizing video artifacts and shadows from adjacent channels.
- Video Clock Generator: Demonstration of National’s low-jitter, multi-rate video clock generator for video cameras, digital recorders and video editing and post-production equipment. The device’s integrated phase-lock loops (PLLs) can synchronize the output clocks to an analog timing reference from the LMH1981 multi-format video sync separator or a digital timing reference from a SDI deserializer. The external loop filter offers additional user configurability to optimize jitter attenuation. With HD clock output jitter as low as 40 ps peak-to-peak, National’s video clock generator can provide reference clocks for video converters (ADC/DAC) and FPGA transceivers to ensure 3G/HD/SD-SDI output jitter is in compliance with SMPTE standards.
- Headphone Amplifier: Featuring National’s LME49600 low-noise buffer and LME49720 low-distortion op amp, in a closed-loop configuration, the headphone amplifier can drive as low as 32 Ohms with an unparalleled total harmonic distortion plus noise (THD+N) of 0.000035 percent. The LME49600 is well-suited as a headphone buffer, line drive or output device for a low noise, low impedance power supply. The LME49720 can be used for all signal path conditioning circuits and has the lowest distortion of any op amp in the industry.
- Audio DAC Preamplifier: Demonstration of National’s complete ultra-high-end analog signal path, including audio power supply regulators, LME49713 current feedback audio op amp, LME49600 low-noise buffer and LME49710 low-distortion, voltage-feedback audio op amp. This Audio DAC delivers a pure signal path, enabling the sonic quality of any input media to be heard without coloration or distortion.
National’s high-performance analog technology can help video engineers differentiate their products. National provides the key functions every system engineer requires, including operational amplifiers, power management, data conversion, interface and serial digital video products, audio subsystems, display ICs and networking products.
About National Semiconductor
National Semiconductor, the industry's premier analog company, creates high-value analog devices and subsystems. National's leading-edge products include power management circuits, display drivers, audio and operational amplifiers, interface products and data conversion solutions. National's key analog markets include wireless handsets, displays, communications infrastructure, medical, automotive, industrial, and test and measurement applications. Headquartered in Santa Clara, Calif., National reported sales of $1.93 billion for fiscal 2007, which ended May 27, 2007. Additional company and product information is available at www.national.com.
