Electronic Design


LVD-Only SCSI Terminator Features Mode-Change Delay Functions
According to its manufacturer, the UCC5680 eliminates the need for two external passive components to comply with the SCSI Parallel Interface specification. This low-voltage differential-only (LVDO) SCSI terminator integrates the mode-change delay functions. It's designed for applications in high-end workstations, servers, RAID boxes, and data warehouse systems.

The device provides precise active termination for nine LVD SCSI bus lines and achieves Ultra3/Ultra160/m peak bus performance. Also, its manufacturer claims power savings greater than 50% when compared to multimode SCSI implementations. It permits easier bus management by providing symmetric delays that aren't available from discrete solutions, as well.

This SCSI terminator is available in a 24- and a 28-pin TSSOP. It costs $2.15 each in 10,000-unit quantities.

Texas Instruments, Semiconductor Group, Santa Clara, CA; (800) 477-8924, ext. 4500; www.ti.com/sc/interface.

Single-Chip USB UART Upgrades RS-232 Designs With 920-kbit Rates
With data-transfer rates up to 920 kbits/s (RS-232) and 2000 kbits/s (RS-422/485), the 32-pin FT8U232AM single-chip USB UART transfers serial data over the USB. It can be used to upgrade RS-232 designs to USB with minimal development and cost. A flexible architecture lets designers use it in a variety of applications, including USB modems, legacy RS-232-to-USB converter cables, USB interface cables for PDAs, RS-422 data links, and instrumentation.

Pricing starts at $3.00 each in 1000-unit quantities.

Saelig Co., 1193 Moseley Rd., Victor, NY 14564; (716) 425-3753; fax (716) 425-3835; www.saelig.com.

EL Driver Backlights Large Displays And Eliminates Noise In Handsets
Suited for backlighting large displays, the Durel D371 IC driver is equipped with features for driving EL lamp backlighting systems in next-generation communications products. It features an adjustable ac output for long life and a high-power, application-specific wave-shaping capability for noise reduction. Also, it offers four levels of programmability for matched lamp/inverter performance, as well as the option of microprocessor control of low- and high-frequency oscillators. The inverter is designed for use in the keypads and displays of handheld communications and computer equipment.

Samples are available for prototyping. Pricing beings at $1.05 for MSOP 10 packages in tape-and-reel. Bare die are available as well.

Durel Corp., 2225 W. Chandler Blvd., Chandler, AZ 85224-6155; (480) 917-6000; fax (480) 917-6049; www.durel.com.

EMI Filter Operates Within MIL-STD-461C, CE03 Standards
The FDHC461 EMI filter is designed for use with dc-dc converters with outputs up to 7.5 W. It provides filtering to reduce input-line reflected ripple current to within the limit of MIL-STD-461C, CE03 standards. Features include a minimal differential mode rejection of 40 dB at 200 kHz, throughput current of 3A, and an 8-pin industry-standard package that is hermetically sealed and isolated.

It costs $194.45 each in 100-unit quantities. Delivery takes up to eight weeks ARO for production orders.

Apex Microtechnology Corp., 5980 N. Shannon Rd., Tucson, AZ 85741-5230; (520) 690-8600; www.apexmicrotech.com.

Oversampling Filters Suit High-Density Applications
Suited for applications where high densities and optimum pc-board utilization use are critical, the CCIR 601 oversampling filters provide passband signal conditioning in accordance with the CCIR 601 recommendations. They're also designed for systems sampling at 27 MHz, which is twice the standard sampling frequency.

Contact the company for pricing and availability information.

Matthey Microfilters, Woodbank House, Woodbank St., Burslem, Stoke-on-Trent, Staffs, ST6 3JZ, the U.K.; +44 (0)1782 820810; fax +44 (0)1782 820820; www.electronics.org.uk/ct_6799.htm.

Hide comments


  • Allowed HTML tags: <em> <strong> <blockquote> <br> <p>

Plain text

  • No HTML tags allowed.
  • Web page addresses and e-mail addresses turn into links automatically.
  • Lines and paragraphs break automatically.