Electronic Design


Ethernet-Enabled SBC Suits Embedded Control
(530) 757-3737; fax (530) 753-5141; www.zworld.com

Members of the BL2000 series of low-cost single-board computers (SBCs) with Ethernet connectivity function for the OEM market. They suit embedded control and monitoring applications. According to the company, these full-featured boards are the most powerful Ethernet-enabled SBCs yet to break the $200 price barrier. The compact board size of 3.43 by 4.15 in. enables easy integration.

Standard features include up to 28 digital I/O (including five or seven dual-purpose A/D inputs) and four RS-232/485 serial ports. A 22-MHz microprocessor is featured. Incorporated memory includes 128k SRAM and 256k Flash (ex-pandable). Additional features include onboard relay, LEDs, seven timers, and a battery-backed time/date clock. The SBC is available in four configurations, including two models with Ethernet and two models without Ethernet. While all models feature nine or 11 channels of A/D, two models also offer D/A capability. All models can be programmed over Ethernet/Internet using appropriate accessory hardware. Systems with built-in 10BaseT Ethernet can be directly controlled and monitored across any network or the Internet. These systems can also open sockets to remote devices, serve Web pages, or send e-mail.

The BL2000 starts at $199 with Ethernet and $159 without Ethernet.

Audio Processor Designed For Cable Network-Based Telephony Products
STMicroelectronics Inc.
(781) 861-2650; www.st.com

The STV0397 is a multichannel Voice-over-Internet-Protocol (VoIP) processor for cable network-based telephony products. It's powered by the VP7 DSP core and the Veracity VoIP firmware from Netergy Microelectronics. In conjunction with the STV0396 DOCSIS single-chip cable modem, the STV0397 lets OEMs offer low-cost PacketCable-compliant voice solutions for the cable market.

The STV0397 functions as an audio compression coprocessor. It includes software for the ITU G.711, G.722, G.723.1, G.726, G.728, G.729A/B, and G.729E algorithms. The device also incorporates acoustic echo cancellation, DTMF detection and generation, and audio mixing. The STV0397 can support up to 16 channels of complex codecs. In addition, the STV0397 with Veracity software can be used to power a variety of VoIP systems, including integrated access devices and telephony gateways. This device incorporates the VP7, a DSP core that enables efficient execution of audio-compression algorithms. The STV0391 incorporates a flexible memory controller, 8 kbytes of audio frame buffers, a TDM interface for audio streams, and a standard PCI port to interface with a host controller.

The STV0397 costs $12 each in 10,000-unit quantities.

Rewriteable RFID Devices Feature Large Memory And Fast Data Rate
Microchip Technology Inc.
(480) 792-7668; www.microchip.com

The MCRF45X family of 13.56-MHz passive RFID devices features superior anti-collision. According to the company, these rewriteable devices feature the largest memory and fastest rate of any 13.56-MHz passive RFID device in the industry. They also boast a large memory, a fast data rate, and a long read/write range.

This family includes an option for an external resonance capacitor (MCRF450), a 100-pF on-chip resonant capacitor (MCRF451), dual 50-pF on-chip capacitors in series (25 pF total) for two antenna connections (MCRF452), and a 50-pF on-chip resonant capacitor (MCRF455). The 13.56-MHz microID MCRF355/450 development kit is available to developers, customers, and VARs. This kit is a complete tool for education and development of RFID systems based on the MCRF450 and MCRF355.

The kit costs $1999 each.

Pentium Processor-Based SBC Includes MMX Technology
Adastra Systems
(510) 732-6900; ww.adastra.com

The VNS-786L single-board computer (SBC) supports the Pentium processor with MMX technology low-power design at 266 MHz. This system features a 66-MHz front-side bus. The board is mechanically compatible with all other VNS-EBX products. The EBX form factor measures 5.75 by 8 in. Mounting specifications are uniform throughout the entire family of EBX products.

The VNS-786L is based on the ALI M1542/3 chip set. According to the company, this SBC is a powerful and cost-effective solution for a variety of embedded applications. Features include AGP graphics, PCI-based audio, 10/100BaseT Ethernet, and support for CompactFlash. Expansion is available through a PC/104-Plus embedded bus. This SBC includes two independent EIDE (DMA-33) interfaces, two USB ports with overcurrent protection, a P/S2 keyboard and mouse, four serial ports (two with RS-232 modem signals, two with RS-232 or RS-485-half/full duplex), and two enhanced parallel ports. According to the company, this SBC offers a high level of integration, a rugged design, and excellent dependability.

The VNS-786L costs $450 in low quantities.

CompactPCI Embedded Ethernet Switch Supports PICMG 2.16
ZNYX Networks
(510) 249-0800; www.znyx.com

According to its manufacturer, the ZX4300P is the first layer-2 Ethernet switch to seamlessly support operation in both a standard CompactPCI chassis and the fabric slots of a chassis designed to support the upcoming PICMG 2.16 CPSB specification. Several rear-transition modules are available to support five through 24 10/100 ports, depending upon the chassis architecture.

Features of this CompactPCI embedded switch include nonblocking line-rate switching performance and hot-swap capabilities. It also features 802.3x and back-pressure flow control. The switch easily integrates into any host operating system. It offers support for Intel x86, Sun SPARC, and Motorola PowerPC host CPUs. According to the company, the ZX4300P switch offers OEMs and system integrators flexibility in designing current and future system solutions. It provides a powerful design environment for building NEBS-compliant, next-generation solutions tailored to an application profile.

Available now, this CompactFalsh embedded switch costs $1995.

RISC Microprocessor Delivers 600 MIPS At 300 MHz
NEC Electronics Inc.
(408) 588-6000; www.necel.com

The VR5500 microprocessor is a 64-bit RISC product delivering 600 MIPS at 300 MHz. According to the company, it achieves one of the highest MIPS per megahertz ratios in the industry. This performance is integral to designers in the digital consumer, networking, and storage markets where extremely high amounts of data must be processed simultaneously.

The VR5500 architecture is designed for scalable performance. This enables the development of future versions of standalone processors with speeds up to 800 MHz. The VR5500 features a two-way superscalar micro-architecture. It also boasts dual instruction issue, out-of-order execution, and a 10-stage decoupled superpipeline. The architecture contains six independent execution units, including two integer units, two floating-point units (FPUs), a nonblocking load/store unit, and a branch unit. The superpipeline includes a decoupled structure for more efficient processing and higher frequency implementation. This design enables 10 stages operating at up to 400 MHz.

The VR5500 comes in a 272-advanced ball grid array package. In 10,000-unit quantities, it costs $35 each.

Combo PCI Card Simulates Synchro And Resolver Signals
Data Device Corp.
(631) 567-5600, ext. 7225; fax (631) 567-7358; www.ddc-web.com

The SB-36200IX four-channel synchro/ resolver-to-digital and two-channel digital-to-synchro/resolver COTS card complements the company's existing line. This card is designed for use in a variety of applications, including military ground vehicle, missile, aircraft system, and industrial robotics motor and machine control. It suits applications where position feedback data is critical.

The SB-36200IX measures and simulates synchro and resolver signals with its four channels of fully independent synchro-to-digital, resolver-to-digital, and up to two channels of digital-to-synchro/resolver. Each D-S/R channel can accommodate the company's DDC-11520, DSC-11524, and DR-11525 cards. This device features an optional power oscillator that supports 2, 26, and 115 VRMS from 57 to 7 kHz. It uses a 16-bit, monolithic R/D approach to measurement, and it provides a wrap-around self-testing feature that lets users verify the board is operating properly once a synchro/resolver simulation channel is populated. A graphical user interface saves the application programmer from performing many low-level tasks. This interface operates on Windows 95/98/2000/NT platforms.

Contact the company for pricing and availability information.

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