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PRODUCT SHOWCASE New range of DMMs from Tektronix There are three major features of the new DMM800 series “true RMS” digital multimeter range just released by Tektronix. These are high accuracy (up to twice that of competing brands), high resolution (up to 10 times) and, according to Textronix, lower prices. The DMM800 series is the company’s new flagship range, designed specifically to meet the needs of electronic design engineers and technicians. The family consists of the entry level DMM830, mid-range DMM850 and the high-end DMM870. All offer a full range of industry-standard features –voltage, current, resistance, capacitance and frequency, and incorporate the new TC8129/8131 chip set, for which Tektronix has exclusive rights. This chip set is the first full featured, autoranging, autocalibrated DMM A-D converter, offering complete DMM functions and the highest resolution and accuracy available on the market today: 4¾ digits or 40,000 counts and 0.06% basic DC volts. The DMM850 and DMM870 feature BassBox® Design low frequency loudspeaker enclos­ures fast and accurately with BassBox® software. Uses both Thiele-Small and Electro-Mechanical parameters with equal ease. Includes X. Over 2.03 passive cross­over design program. $299.00 Plus $6.00 postage. Pay by cheque, Bankcard, Mastercard, Visacard. EARTHQUAKE AUDIO PH: (02) 9948 3771 FAX: (02) 9948 8040 PO BOX 226 BALGOWLAH NSW 2093 82  Silicon Chip dual numeric displays, allowing sim­ ultaneous measurement of two functions without switching (eg voltage and frequency). These models can also time stamp (labelling minimum and maximum values during measurement), as well as measure temperature directly in degrees Fahrenheit or Celsius. The DMM870 also features high/ low limit setting, with a beep to warn when measurements exceed user-set limits, along with a peak-hold function, holding and time stamping even very short mode (1ms) events. All three models are true RMS meters that feature adjustable auto power-off, memory store/recall and a durable water/dust resistant casing. Each meets IEC, UL and CSA standards and comes with a 3-year warranty. Prices are $399 for the 830, $449 for the 850 and $499 for the 870. For further information, contact Tektronix Australia, 80 Waterloo Rd, North Ryde, NSW 2113. Phone (02) 888 7066, fax (02) 888 0125 Ghost killer chip for consumer products Cancellation Reference signal. Suitable for both PAL and NTSC, the MV52661SP chip provides the first cost-effective means of reducing ghost­ ing in consumer devices. The 52-pin DIP-package chip contains a 4fsc burst-lock clock generator, a sync separator, a clamping circuit for digital signal processing, an analog video switch and a 10 bit D-A con­verter, along with a timebase error detector circuit to detect channel change or VCR signal. For further information, contact Mit­ su­­bishi Electric; phone (02) 684 7777. Mitsubishi Electric has announced the release of the M52661SP, the first anti-ghost pre-processor chip for tele­ visions, set-top boxes and VCRs. According to Mitsubishi, use of their chip in conjunction with an adaptive filter chip (made by Oren Semiconductor) and a standard 8 or 9-bit video A-D converter, makes it possible to dynamically cancel multipath ghosts – if the TV station transmits a Ghost TDK’s first global PC Card If you are seeing a blank page here, it is more than likely that it contained advertising which is now out of date and the advertiser has requested that the page be removed to prevent misunderstandings. Please feel free to visit the advertiser’s website: www.emona.com.au/ TDK has introduced the first legal “international” PC data/fax modem card, the DF2814, giving computer users the freedom to call up data from other computers, send and receive faxes without a fax machine, check e-mail and even surf the Internet both here in Australia and overseas. Usable in up to 17 countries, the PC Card (which used to be called PCMCIA) supports V.34 (28,800bps) data, 14,400 fax, MNP5 and V.42 bis data compression proto­cols, and MNP2-4, V.42 and MNP 10 error correction pro­to­cols. It is also compatible with the existing V.FAST class and will automatically fall back to slower speeds as required. When used overseas, country selector software allows the user to select the appropriate telephone system. Its default power-up is the country of origin, avoiding faulty setup. The card plugs directly into an PC or Apple Power Book sporting the appropriate PC Card slot. As well as the international business traveller, the card is ideal for SOHO and remote access applications. Fast charger for lithium-ion batteries The bq2054 fast charge IC from Benchmarq now optimises the charging of lithium-ion (Li-Ion) batteries. The bq2054 incorpo­ rates a pulse- width modulator (PWM), on-chip reference, charge timer, and status indicators to provide a full-features lithium ion charge controller. The PWM frequency is set by an external resistor-capacitor network. The bq2054 is suited to switch­­ mode designs and may be configured for linear or gated current regulation. In use, the device terminates charging when the current falls below a userselect­able minimum current limit. For safety, it also inhibits charging when the battery voltage and temperature are outside set limits. A user-selectable maximum charge time is also available. Also possible are multiple LED display options for charge status and fault conditions; user-selectable time-out and minimum current charge termination; battery temperature and voltage qualification before fast charge; and fast charge suspension with temperature fault. For further information, contact Reptechnic, 3/36 Bydown St, Neutral Bay, NSW 2089. Phone (02) 9953 9844. June 1996  83 Complete mixer on a chip Active matrix liquid crystal displays Philips has just appointed Amtex Electronics as sole Aus­tralian distributor for its range of FPD active matrix liquid crystal displays. This range of Active Matrix LCDs uses Thin Film Diode (TFD) technology which is simpler and more reliable than the current TFT technology. Ranging in size from 2.8 to 10.4-inches, with an 11.3-inch version soon to be released, these LCDs are designed for industrial, transportation, medical equipment and defence-related applications. For further information, contact Amtex Electronics on (02) 805 0844; fax (02) 805 0750. KITS-R-US PO Box 314 Blackwood SA 5051 Ph 018 806794 TRANSMITTER KITS $49: a simple to build 2.5 watt free running CD level input, FM band runs from 12-24VDC. •• FMTX1 FMTX2B $49: the best transmitter on the market, FM-Band XTAL locked on 100MHz. CD level input 3 stage design, very stable up to 30mW RF output. $49: a universal digital stereo encoder for use on either of our transmitters. XTAL locked. •• FMTX2A FMTX5 $99: both FMTX2A & FMTX2B on one PCB. FMTX10 $599: a complete FMTX5 built and tested, enclosed in a quality case with plugpack, DIN input •connector for audio and a 1/2mtr internal antenna, also available in 1U rack mount with balanced cannon input sockets, dual VU meter and BNC RF $1299. Ideal for cable FM or broadcast transmission over distances of up to 300 mtrs, i.e. drive-in theatres, sports arenas, football grounds up to 50mW RF out. FMTX10B $2599: same as rack mount version but also includes dual SCA coder with 67 & 92kHz subcarriers. • AUDIO Audio Power Amp: this has been the most popular kit of all time with some 24,000 PCBs being •soldDIGI-125 since 1987. Easy to build, small in size, high power, clever design, uses KISS principle. Manufacturing rights available with full technical support and PCB CAD artwork available to companies for a small royalty. 200 Watt Kit $29, PCB only $4.95. AEM 35 Watt Single Chip Audio Power Amp $19.95: this is an ideal amp for the beginner to construct; uses an LM1875 chip and a few parts on a 1 inch square PCB. Low Distortion Balanced Line Audio Oscillator Kit $69: designed to pump out line up tone around studio complexes at 400Hz or any other audio frequency you wish to us. Maximum output +21dBm. MONO Audio DA Amp Kit, 15 splits: $69. Universal BALUN Balanced Line Converter Kit $69: converts what you have to what you want, unbalanced to balanced or vice versa. Adjustable gain. Stereo. • • •• COMPUTERS I/O Card for PCs Kit $169: originally published in Silicon Chip, this is a real low cost way to interface •to Max the outside world from your PC, 7 relays, 8 TTL inputs, ADC & DAC, stepper motor drive/open collector 1 amp outputs. Sample software in basic supplied on disk. PC 8255 24 Line I/O Card Kit $69, PCB $39: described in ETI, this board is easy to construct with •onlyIBM3 chips and a double sided plated through hole PCB. Any of the 24 lines can be used as an input or output. Good value. 19" Rack Mount PC Case: $999. •• Professional All-In-One 486SLC-33 CPU Board $799: includes dual serial, games, printer floppy & IDE hard disk drive interface, up to 4Mb RAM 1/2 size card. PC104 486SLC CPU Board with 2Mb RAM included: 2 serial, printer, floppy & IDE hard disk $999; VGA •PC104 card $399. KIT WARRANTY – CHECK THIS OUT!!! If your kit does not work, provided good workmanship has been applied in assembly and all original parts have been correctly assembled, we will repair your kit FREE if returned within 14 days of purchase. Your only cost is postage both ways. Now, that’s a WARRANTY! KITS-R-US sell the entire range of designs by Graham Dicker. The designer has not extended his agreement with the previous distributor, PC Computers, in Adelaide. All products can be purchased with Visa/Bankcard by phone and shipped overnight via Australia EXPRESS POST for $6.80 per order. You can speak to the designer Mon-Fri direct from 6-7pm or place orders 24 hours a day on: PH 018 80 6794; FAX 08 270 3175. 84  Silicon Chip Analog Devices’ new SSM2163 is a complete 8-input audio mixer on a chip. It accepts eight audio channels, provides con­trol of volume in 63 1dB steps and can mix individual channels to either the right, left or both outputs. The SSM2163 employs an industry-standard three-wire serial interface and one data output terminal to daisy-chain multiple SSM2163s for high-end multi-track audio systems. A single mute pin, when driven by a micro­ processor reset signal, will silence all eight audio channels simultaneously. The SSM2163 is a companion to Analog Devices’ family of stereo codecs and provides excellent audio quality. Signal-to-noise is -82dBu (0dBu = 0.775V RMS) with an additional 10dBu of headroom, resulting in a total dynamic range of 92dBu. Total harmonic distortion plus noise is .007% at 1kHz with all levels set for unity gain. This mixer-in-a-chip can be powered by a single (+5V-14V) supply or dual (±4V to ±14V) supplies and is available in 28-pin plastic New range of filters for 3-phase variable speed motor drives Schaffner has a range of filters for 3-phase industrial frequency inverters. The new FN258 series have a voltage rating of 480V, meeting the requirements of variable speed motor drive manufacturers and users around the world. The new filter is the first Schaffner component to meet EN133200 – the new harmonised European standard for this product sector –in addition to the USA’s UL1283. The new filter is available in a family of nine variants to cover a current range from 7-180A, simplifying the task of making variable frequency drives (VFDs) comply with EMC regulations. A standard temperature rating of 50°C obviates the need to derate specifications to match actual working conditions in countries such as Australia. For further information, contact Westing­house Industrial Products, Locked Bag 66, South Melbourne, Vic 3205. Phone (03) 9676 8888; fax (03) 9676 8702. DIP and SOIC packages. The SSM2163 is suited for automating many computer audio systems, from high-end multimedia work­ stations to low-cost PC sound cards. Other applications include professional audio mixing consoles, broadcast equipment, intercom and paging systems and musical instruments. For further information, contact Hartec, 205A Middleborough Rd, Box Hill, Vic. 3128. Phone 1 800 335 623. Windows software for robots Procon Technology has released Windows software capable of controlling robotic kits. Complete source code is provided for VisualBASIC for Windows version 3 or greater. The supplied rou­tines may also be used by other Windows-based languages. The Windows Robotics software an be used to control motors, switches, lamps, electromag­ nets and buzzers. You could program automatic responses to change light, temperature or motion as detected by sensors. Extending the control of the screen to actual machines and robots enhances the computer’s learning environment in problem solving, science, maths and logic. The Fischertechnik interface unit provides eight digital inputs, two analog inputs and four bidirectional motor outputs. The unit connects to any IBM-PC parallel printer port and allows a second unit to be attached for a total of 16 digital inputs and eight motor outputs (or 16 lamp/relay outputs). The analog inputs may be used with potentiometers (for position control), light dependent resistors (for measuring light), thermistors (for measuring temperature) or other resistive devices. The Windows Robotics software costs $45. For further de­tails contact, Procon Technology, PO Box 655, Mount Waverley, Vic 3149. Phone (03) 9807 5660; fax (03) 9807 8220. Electronics Workbench software upgrade The popular “Electronics Workbench” software which allows users to simulate analog and digital circuits as well as test equipment such as an oscilloscope, function generator and spec­trum analyser on a PC, has now been updated with the release of version 4. This new version expands the selec- PCB POWER TRANSFORMERS 1VA to 25VA Manufactured in Australia Harbuch Electronics Pty Ltd 9/40 Leighton Pl. HORNSBY 2077 Ph (02) 476-5854 Fx (02) 476-3231 tion of analog and digi­tal components available to users. Real world models which make all active components selectable by part number, as found in standard data books, have been extended. For more information, contact Emona Instruments on (02) 519 3933 or SC fax (02) 550 1378. Scan Audio Pty Ltd June 1996  85