Products

European Products

SDH/SONET ICs operate at 2.5 Gbps. A two-chip set serves as the front end of an SDH STM-16 or SONET OC-48 optical-fiber-transmission system operating at 2.5 Gbps. The GD16045 is a clock- and data-recovery circuit that includes a 1-to-16 demultiplexer. The GD-16055 is a 16-to-1 multiplexer with an open-drain serial output. Both devices include on-chip PLLs and VCOs and require only passive external components. Giga, Skov-lunde, Denmark. +45 44 92 59 00.

Low-threshold MOSFETs keep on-resistance small. A family of five power MOSFETs boasts a maximum on-resistance of 16 mV at a 2.5V gate drive for the single n-channel Si9426DY. At a 4.5V gate drive, on-resistance drops to 13.5 mV. The single p-channel Si9424DY presents 33-mV maximum on-resistance at a 2.5V gate drive and 25 mV at 4.5V. The Little Foot series also in-cludes dual n- and p-channel devices, as well as complementary types. Parts come in eight-pin SOIC configurations. Temic, Heilbronn, Germany. +49 7131 67 0.

Voltage reference comes in SOT-23 package. The AD1580, a micropower shunt-voltage reference housed in an SOT-23 surface-mount package, delivers a stable 1.225V typical output for input currents ranging from 50 mA to 10 mA. Power dissipation is 135 mW. The device's initial maximum error is ±0.1 or ±1%, and its maximum temperature coefficient is 50 or 100 ppm/8C over a temperature range of –40 to +858C. Analog Devices, Munich, Germany. +49 89 5 7005 150.

10W encapsulated dc/dc converter measures 503 25 mm. Offering a 2-to-1 input range with nominal voltages of 5, 12, 24, 48, and 280V dc, the MHP series of encapsulated dc/dc converters delivers 10W from a metal case that measures 50.8325.4310 mm. You can choose single- or dual-output versions with voltages of 2.1, 3.3, 5, 12, 15, ±5, ±12, and ±15V dc. Options include external trimming, input/output isolation of 1500V dc, remote on/off control, and an extended ambient-temperature range of –40 to +958C. KRP Power Source, Etten-Leur, The Netherlands. +31 76 5021350.

IDC connectors cut assembly time. The Hi-Con 120 series of DIN 41612 connectors uses insulation-displacement contacts, which eliminate the need for soldering. Connectors come in B, C, and half-C types, providing 32, 64, or 96 contacts arranged in either two or three rows. Designed for a temperature range of –55 to +1258C, the devices have an operating current of 1A and a minimum insulation resistance of 105 MV. Panduit, Bad Homburg, Germany. +49 6172 1750.

Switcher outputs are field-configurable. The PFC MegaPAC, a universal ac input switching power supply with near-unity power factor correction, offers field-configurable outputs using the vendor's ConverterPACs. By sliding ConverterPACs into the MegaPAC chassis, you can configure the system with up to 16 outputs for a total of 1600W in a footprint of 3023 152386 mm (11.93633.4 in.). You can also link the MegaPACs in parallel to achieve kilowatts of total output power. Vicor, Camberley, UK. +44 1276 678222.

RTOS works with 16-bit µCs. The OSE Basic real- time operating system brings high performance and small size to Siemens' C166 family of microcontrollers. Applications run faster and use less memory because of the optimized services provided by the operating system, including pre-emptive multitasking, interprocess communication, and dy-namic memory management. OSE Basic pro-cesses complex control algorithms based on many digital and analog inputs and generates the required output within a defined minimum response time. Enea Data, Taby, Sweden. +46 8 638 5000.

Peripheral controller lightens VMEbus load. The A4N, a VMEbus double Eurocard, serves as an intelligent peripheral controller, a single-master CPU, or a stand-alone CPU. Equipped with a 20-MHz MC68332 and 2 Mbytes of dual-port RAM, the board offers three M-Module slots and direct control of four additional M-Module slots on an extension board. Other features include a time-processor unit, hardware watchdog, real-time clock, configurable LEDs, EPROM/flash, and two serial interfaces. A 3U version of the A4N, the B4 has one M-Module slot and needs only one slot on the VMEbus. Mikro Elektronik, Nurnberg, Germany. +49 9 11 99 3350.

ISA-bus boards offer SHARC multiprocessing. Two configurable boards employ single and dual SHARC DSPs, delivering 120 to 720 Mflops from a single ISA-bus slot. The dual-processor PC/DS2Sx, which requires a full-length ISA slot, has a SHARCPAC module site to hold up to six SHARC DSPs in one slot. The single-processor PC/LS1Sx is a half-sized card. Both boards come with SHARCNET connectors for access to SHARC link ports, allowing 40-Mbyte/sec direct communications between SHARC processors and I/O devices. Zero-wait-state SRAM is optional. Loughborough Sound Images, Loughborough, UK. +44 1509 634300.

Power-conversion IC switches at up to 1 MHz. The Si9117DY, a high-frequency monolithic power- conversion IC for fixed-network communications de-vices, requires up to 10W and contains all the active circuitry needed to replace a dc/dc module. Running directly off standard telephone-line power, the Si-9117DY operates at switching frequencies of up to 1 MHz and includes a 1V, 200V switching FET in its SOIC-16 package. The part also offers soft-start, internal start-up, and latched shut-down circuitry. Temic-Siliconix, Bracknell, UK. +44 1344 707300.

IC decodes MPEG2 AVG for set-top boxes. The SAA7201 MPEG2 audio, video, and graphics (AVG) decoder accepts MPEG2 PAL signals to yield 8-bit/pixel full-screen graphics within the memory constraints of a single 16-Mbit SDRAM. The 3.3V device, housed in a 160-lead QFP, brings ad-vanced graphics to set-top digital-video broadcast re-ceivers. Used with a color look-up table, the SAA7201 displays 16 million colours at 64 transparency levels. The SAA7201 also allows a 1000-pixel downloadable cursor with one of five aspect ratios and four transparency levels. Philips Semiconductors, Eindhoven, The Netherlands. +31 40 722091.

Linear-regulator ICs have low dropout. Housed in miniature, five-pin SOT-23 packages, the MAX8863T/S and MAX8864T/S linear regulators operate from a 2.5 to 5.5V input and deliver up to 100 mA. Dropout voltage is 60 mV with a 50-mA IOUT. Dual-mode operation en-ables the regulators to provide either an adjustable 1.25 to 5.5V output or a preset output (3.175V for the T version or 2.85V for the S version). All versions operate over the extended industrial temperature range of –40 to +858C. Maxim Integrated Products, Theale, UK. +44 1734 303388.

Compact emulator works with i960 Hx processors. A small form-factor in-circuit emulator for Intel's i960 H-series of µPs, the CodeTAP 960 Hx operates at the processor's maximum 75-MHz speed. The CodeTAP development environment includes 8 kbytes of trace memory, up to 1 Mbyte of overlay memory, breakpoint capability, seamless TCP/IP networking support, and a multiwindowed graphical C/C++ debugger that runs on Sun4, HP 9000/700, and PC platforms. Applied Microsystems, Aylesbury, UK. +44 1296 625462.

Processor renders 3-D graphics. A family of 3-D graphics processors is based on PowerVR, a reduced-memory, 3-D-rendering ar-chitecture developed by NEC and VideoLogic. The single-chip PCX1 combines texture, shading, and image-synthesis functions with a PCI-bus interface. The device draws 257,000 sustained 100-pixel-sized triangles/sec at a resolution of 6403480 pixels, 30 frames/ sec, and 16.7 million colors. Also offered is a two-chip PowerVR set for video-arcade machines. The PCX1 costs $65 (10,000). NEC Electronics, Milton Keynes, UK. +44 1908 837238.

3U VMEbus SBC carries two IP mezzanine sockets. Fully compatible with the VITA 4 IP specification, the VSBC-335 single-board computer for the VMEbus incorporates a 32-bit 68340 processor running at 25 MHz and two IP mezzanine sockets for expanding the board's functions. Up to 2 Mbytes of SRAM are included onboard, along with up to 2 Mbytes of flash memory and a socket for a 512-kbyte EPROM. The first bank of SRAM is battery-backed. Standard features include two RS-232C ports, two 16-bit timers, a clock-calendar, and watchdog logic. Actis Computer, Geneva, Switzerland. +41 22 794 43 35.

Sockets hold TSOP and QFP components. Two families of surface-mount sockets for TSOP and QFP devices meet the socketing requirements of miniaturized prototype and production packaging for memory and control modules. The TSOP sockets come in 28-, 32-, and 40-pin versions with lead spacings of 0.50, 0.55, and 1.27 mm. QFP sockets come in 64- and 80-pin versions with 0.80-mm spacing. Respective current ratings for the TSOP and QFP sockets are 0.1 and 0.2A per contact. Breakdown voltage is 500V ac. Insulation resistance is 1000 MV. Robinson Nugent, s'Hertogenbosch, The Netherlands. +31 73 6928110.

Ultraslim PLCC socket stands 4.3 mm high. With outer dimensions of 16.87319.41 mm and an above-board height of 4.3 mm, E-tec's 32-pin PLCC socket suits low-profile packaging. The base is attached at four corners, leaving all solder pins free for inspection after soldering. The socket body accommodates chip-retention clips for applications where shock and vibration are encountered. E-Tec Interconnect, Puidoux, Switzerland. +41 21 946 3606.

622-Mbps ICs for SDH and SONET networks. A transmitter/receiver chip set meets the requirements for a 622-Mbps front end for SDH STM-4 and SONET OC-12 fiber-optic communications systems. The GD16066 1 to 8 demultiplexer recovers clock and data and includes a limiting amplifier input with a typical sensitivity of 50 mV p-p. The GD16065 8 to 1 multiplexer offers a laser driver with an adjustable modulation current of 10 to 54 mA. On-chip PLL and VCO circuitry in both devices limits the number of external components re-quired. Giga, Skovlunde, Denmark. +45 4492 5900.

Board-mount module integrates line filter. The Combifit power-entry module with snap-on line filter comes with pc-board terminals that provide more effective EMC grounding and generate less emission than wire connections. The design also eliminates potential crosstalk between filter components. AC interference is minimized between 10 kHz and 300 MHz. Power-entry modules come in three configurations: inlet/switch, inlet/ outlet, and inlet/fuse-holder. Combifit carries UL, CSA, and VDE approvals up to 6A/250V (10A without the filter). $1.94 (1000). Schurter, Luzern, Switzerland. +41 369 3111.

Quad ICs bear high-density T1/E1 designs. The PM4314 QDSX quad T1/E1 line-interface unit and the PM6344 EQUAD quad E1 framer let you design high-density interfaces for both public and private network equipment. The QDSX integrates four G.703 E1/DSX-1 line interface circuits. The EQUAD frames up to four G.704 2048-kbps signals and accommodates both HDB3 or AMI line coding. Housed in 128-pin PQFPs, the PM 4314 costs $32, and the PM6344 costs $59 in volume. PMC-Sierra, Warrington, UK. +44 1925 280661.

Simulator improves model support. Version 4.0 of the Saber simulator not only permits full integration with the vendor's SaberDesigner EDA software, but also increases silicon- device support with the inclusion of 18 new generic templates and 807 characterized component models. A centralized symbol library ensures consistency of representation in the various vendors' EDA environments. Saber V4.0 provides analog, mixed-mode, and mixed-technology simulations using an HDL-based-top-down design capability. Analogy, Swindon, UK. +44 1793 432286.

ISA-bus boards supply counter/ timers. Joining the 200 series digital I/O boards for the ISA bus, the PC215E, PC212E, and PC218E provide six, 12, and 18 counter/timers, respectively, using the industry-standard 82C54 device. The 16-bit counter/timers are individually programmable via control registers and can be set as event or pulse counters, rate generators, or software-triggered strobes. Input and gate to each timer are software-selectable, allowing you to change the hardware setup during an application without moving jumpers or making external links. Amplicon Liveline, Brighton, UK. +44 1273 570220.

Micropower dc/dc converter slashes quiescent current. The LT1304 step-up dc/dc converter has a quiescent current of 120 mA and operates at input voltages as low as 1.65V. Shutdown mode reduces quiescent current to 10 mA. Efficiency of up to 85% boosts battery life in two-, three-, and four-cell input applications. An internal bipolar switch yields up to 200 mA at 5V from a depleted two-cell input. A low-battery detector that stays active when the device is shut down continually reports battery status. The LT1304 comes in an eight-lead SO package. $2.45 (1000). Linear Technology, Camberley, UK. +44 1276 677676.

DMOS transistors allow high-speed switching. The BS series of n- and p-channel DMOS transistors offers high-speed switching in both surface-mount and leaded versions. N-channel leaded devices have switch-on times ranging from 5 to 40 nsec and switch-off times from 15 to 100 nsec. For the n-channel surface-mount parts, switch-on time is 5 nsec, and switch-off is either 25 or 50 nsec. P-channel leaded transistors have switch-on times of 5 to 10 nsec and switch-off times of 25 to 50 nsec. The p-channel surface-mount version has a 5-nsec switch-on and 25-nsec switch-off. ITT Semiconductors, West Byfleet, UK. +44 1932 336116.

Pager IC keeps crystal costs down. Housed in a 1-mm-thick package, the SL6619 direct-conversion FSK data receiver incorporates automatic frequency control (AFC) and programmable postdetection filters. AFC gives the pager IC a wider center-frequency acceptance, typically ±4 kHz at 280 MHz, which allows the use of lower tolerance crystals. The SL6619 also provides automatic gain control and a typical sensitivity of –129 at 280 MHz. Power consumption is 3.1 mW. $14 (1000). GEC Plessey Semiconductors, Swindon, UK. +44 1793 518000.

Power-conversion and -control ICs catalog. The 94-pg Battery Power Management Products catalog de-cribes the vendor's line of power-conversion and -control devices designed for battery-powered products. New to this edition are four energy-saving devices: an adjustable shunt regulator, a 3V, step-up dc/dc converter, a PCMCIA power switching matrix, and a micropower bandgap shunt reference. Application notes address fast battery charging, extending battery life, LCD gray-scale control, and efficient control of two cells. Semtech, Glenrothes, UK. +44 1592 773520.

Ceramic-plate capacitors withstand 1000V. This range of miniature ceramic-plate capacitors includes a 1-kV series in a wide selection of capacitances, from 0.47 to 3300 pF, with tolerances of ±0.25 pF for SL types and ±10 and ±20% for class II types. The operating-temperature range for most parts is –55 to +858C, and the capacitors are available with an extended upper range of 1258C. The miniature capacitors have copper electrodes for improved dc performance and reliability. Philips Components, Eindhoven, The Netherlands. +31 40 272 27 90.