Tuesday, January 18, 2011

USB-Capable Power Sensors

Rohde and Schwarz (RandS) has announced the NRP Z85 and NRP Z86, wideband sensors that measure power from 50 to 40GHz, suitable for microwave and radar development, maintenance and research. Instead of a base unit, the sensors are connected to a PC via a USB interface. This cost-efficient solution displays envelope power over a dynamic range of 47 to +20dBm. High-resolution pulse analysis is another exceptional feature.

Additionally, the RandS NRP Z85 and RandS NRP Z86 provide high-precision continuous-average measurements over the entire dynamic range from 60 to +20dBm. These performance characteristics make the sensors suitable for a variety of applications in the development and maintenance of microwave and radar systems as well as in the design and production of microwave components. The wideband power sensors can be operated from a PC via the RandS NRP Z4 USB adapter, or in combination with an RandS NRP/NRP2 power meter.

They can also be connected to any signal generator or virtually any signal, spectrum and network analyser from Rohde and Schwarz. Users can read the power measured from the DUT directly at the generator or analyser. A complete measurement solution comprising an RandS NRP Z85 or Z86 and an RandS NRP Z4 USB adapter is significantly more cost-effective than a conventional setup involving a power sensor and a power meter. With a video bandwidth of up to 30MHz and a sampling rate of 80MHz, the RandS NRP Z85 and Z86 are suited to analysing the time characteristics of modulated signals.

The rise time of less than 13ns enables easy measurement of the most frequently analysed pulse shapes. The power sensors can measure both peak power and average power over a defined time interval as well as perform statistical signal analysis (CCDF, PDF). With a measurement uncertainty of 0.18dB at 40GHz, these sensors offer good accuracy for continuous-average measurements. This combines with the sensors' other exceptional performance features to make them the market benchmark in peak power applications.

The power sensors' automatic pulse-analysis function provides peak power and average power measurements as well as detailed information on other important power and time characteristics of pulsed signals. These include, for example, pulse top level, pulse duration, pulse period, pulse duty cycle, and pulse rise and fall times. Using equivalent time sampling, the RandS NRP Z85 and Z86 can display pulsed signals with a very high time resolution.

This is done by sampling a series of consecutive waveforms of a pulsed signal. The measurements are time-shifted relative to one another, yielding a compacted sequence of samples, which over time are combined into a complete waveform. The new RandS NRP-Z85 and RandS NRP-Z86 wideband power sensors are now available from Rohde and Schwarz. The RandS NRP Z85 connects to the DUT via a 2.92 mm connector, the RandS NRP Z86 via a 2.4 mm connector.
Embedded Computer for Factory Robots and Vehicles

Nexcom has expanded its range of fanless embedded systems with the launch of the NISE 2100A Series, designed for a host of industrial computing applications within extreme environmental conditions. Housed in a rugged aluminium chassis, NISE 2100A has been designed to operate in temperatures of between -20 to 70C. This feature enables NISE 2100A to function in the severe environmental conditions usually associated with factory automation, industrial automation or transportation.

It incorporates a 1.8GHz Intel Atom D525 Dual Core processor with ICH8M PCH chipset. This advanced Intel-based technology boasts 50 per cent better performance than the previous generation of Atom N270 CPU, with only a small increase in power consumption. Using onboard DDR3 memory, NISE 2100A is capable of fulfilling mainstream market requirements for increased performance with lower system configuration costs.

The NISE 2100A is suitable for a wide variety of diverse applications and therefore is equipped with a multitude of I/O interfaces including Dual LAN, four RS-232 COM ports, two RS232/ 422/ 485 COM ports with 2.5 KV isolation protection, four USB 2.0, one VGA and GPIO port. In addition, for applications which require PCI expansion, a variant known as NISE 2110A is also available.

With a wide range of DC inputs, from 9 to 36V, as well as a built-in SIM-card holder and mini-PCIe socket, NISE 2100A series is suitable not only for industrial and factory automation but also for wireless communication, in-vehicle computer applications, transportation control systems, such as Kiosk, self-service machine and ticket machine.
Welded-Steel Housing for Industrial Hardware

Amplicon's Industrial Computing group has released a range of industrial-grade cabinets suited to housing Amplicon's industrial rackmount computers, data communication and test equipment. Designed for the rigours of industrial-grade applications, the range is constructed from a rugged, welded-steel housing with mesh doors, to provide optimal airflow for the valuable industrial hardware contained within.

Available in a wide range of sizes to suit the hardware required, with heights up to 45U and depths to 1,200mm, the cabinets have the potential to allow up to 45U of rackmount equipment to be consolidated into a compact 600 x 600mm footprint.

With simplicity in mind the new range can be supplied as a fully integrated turnkey solution, supplied ready for use, or alternatively as a versatile starter kit, supplied with everything needed to get up and running with a customer's own cabinet integrations, including power distribution, cable management and fixings. The cabinets come complete with U-marked uprights to assist with these integrations.

Amplicon's cabinet integration service allows complete rackmount solutions to be professionally built against your own technical drawings and specification, allowing every last detail of the cabinet configuration and fitted hardware to be captured and easily replicated. The service allows an entire cabinet integration to be fully managed by Amplicon, consolidating and simplifying the supply chain to a single order and substantially reducing purchasing costs of more complex integration projects.
Smallest 4A Switching Regulator Simplifies Designs and Improves Reliability

Maxim Integrated Products (NASDAQ: MXIM) introduces the MAX15040, a low-voltage (2.4V to 3.6V), synchronous switching regulator in a 2mm x 2mm wafer-level package (WLP). This miniature step-down regulator integrates MOSFETs to simplify design, minimize EMI, improve reliability, and save board space. The MAX15040 operates from a fixed 1MHz switching frequency to further reduce total solution size, as it allows all-ceramic-capacitor designs. Offering efficiencies up to 94% at full load current (4A), this point-of-load regulator minimizes power loss in applications such as telecom, networking, and server equipment.

Other features include an enable input and power-good indicator for power sequencing, adjustable soft-start for controlled turn on, and the ability to safely start up into a prebiased output. The MAX15040 provides ±1% output-voltage accuracy over temperature and is fully specified over the -40°C to +85°C extended temperature range. Prices start at $2.17 (1000-up, FOB USA).

Maxim Integrated Products is a publicly traded company that designs, manufactures, and sells high-performance semiconductor products. The Company was founded over 25 years ago with the mission to deliver innovative analog and mixed-signal engineering solutions that add value to its customers' products. To date, it has developed over 6400 products serving the industrial, communications, consumer, and computing markets.
Satellite IF Switch IC Expands to Allow 16 Signals

Maxim Integrated Products has introduced the Max12005, an 8 x 4 satellite IF switch IC that is flexible and adaptable to suit space-constrained, satellite IF distribution and multiswitch applications. Its 8 x 4 matrix is configured with an additional IF switch input so that it can expand to accept up to 16 satellite input signals.

The Max12005 supports a single, quad low-noise block (LNB) with vertical or horizontal polarisation signals that can be matrix-switched to four satellite receivers. A configuration of eight satellite IF inputs to eight satellite receivers is also possible by using two Max12005 ICs and adding eight input splitters. Signal quality is maintained even with high cable-signal losses.

Four integrated 9:1 multiplexers with variable-gain input and output amplifiers provide sufficient gain to compensate for the signal-path losses in the cable distribution and for switch insertion losses. To save space and cost, the Max12005 utilises two control methods: DiSEqC 2.0 decoding and tone/voltage decoding. These control methods enable four operational modes, which include LNB mode for use within the LNB mentioned above, cascade master mode, cascade slave mode, and single mode.

Furthermore, the four embedded DiSEqC decoders eliminate the need for external control components. The Max12005 is fully specified over the -40 to +85C extended temperature range and available in a small 7 x 7mm, lead-free, 48-pin TQFN package. Prices start at USD7.44 (GBP4.69).
MEMS Oscillator has Low Power Consumption

MSC now offers SiTime's SiT8004 MEMS oscillator in the 125 to 150MHz frequency range, with low standby current, suitable for use in 'green' DDR, SAS, SATA, HDMI and video pixel clock applications. Key features include 6.5mA typical power consumption and 1.2uA ultra-low standby current. Frequency stability of the oscillator device varies between +/- 20 and +/- 50ppm, according to the supply voltage of 1.8, 2.5, 2.8 or 3.3V applied.

Four industry-standard packages from 2.5 x 2.0 to 7.0 x 5.0mm are available. Thanks to its 50 to 75 per cent lower power consumption compared to similar standard quartz oscillators, the SiT8004 is suitable for use in 'green' DDR, SSD, SAS, SATA, HDMI and video pixel clock applications as well as 1-Gigabit Ethernet, GPON and EPON network applications.
MLCC Capacitors can be Used in Harsh Environments

Now available, Holy Stone's compact 'Verti-Zontal' (vertically oriented, horizontally stacked) MLCC capacitors are designed for applications with limited headroom, requiring a high-CV product. This SVZ Series orients individual capacitors vertically, limiting the overall height while the stack itself extends horizontally across the mounting area on the board.

The low ESR design allows for very high CV in the available footprint space. The compact yet high-CV design of these Verti-Zontal stacks is suitable for power applications including input and output filters. Its lead frame construction isolates the MLCC from both thermal and mechanical stresses, which can be problematic with large capacitors.

The Holy Stone design provides outstanding mechanical integrity as the design provides for individual leads to be centred on each cap insert. The low centre of gravity provides superior shock and vibration resistance, so they can be used in harsh environments. The SVZ series is also available using Holy Stone's high-temperature dielectric in temperature ratings up to 200C, in which case it is called the HVZ series.