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EETE SEP 2015

Microwave & RF circuits 380-micron-thick package puts Bluetooth in credit-card formats Cypress has added to its Bluetooth Low Energy (BLE) portfolio for banking, industrial and lighting applications; its BLE offerings; PSoC 4 BLE and PRoC BLE, are now available in ultra-thin chip scale package and with extended industrial temperature range. The PSoC 4 BLE Programmable Systemon Chip and PRoC BLE Programmable Radio-on-Chip solutions each now have an option for a micro-ball Chip Scale Package (CSP) package optimised to bring Bluetooth Smart connectivity to secure credit card applications. The package is only 0.38-mm thick, enabling the Bluetooth-certified solutions to replace chip-on-board devices. Cypress also offers products with an extended industrial temperature range option with operation from -40ºC to +105ºC. This ensures consistent product performance throughout this temperature range for industrial, automotive and lighting applications that must operate in extreme climates. Both the micro-ball CSP package and extended industrial temperature options will be available for the 128 kB and 256 kB flash versions of the PSoC 4 BLE and PRoC BLE solutions. The new offerings are pin-to-pin compatible with Cypress’s original Bluetooth Low Energy solutions, simplifying upgrades. PRoC BLE is a Bluetooth Smart microcontroller with Cypress’s CapSense capacitive touch-sensing functionality, while PSoC 4 BLE offers expanded design versatility by adding intelligent analogue and programmable digital blocks. Cypress www.cypress.com Compact, multiband transceiver for industrial telemetry and remote control LPRS has announced the availability of the STD-601 400 MHz transceiver module from Circuit Design for telemetry, remote control and industrial applications. The advanced design has many innovative features including four frequency ranges conforming to various ISM bands available in the single device. Featuring high performance narrowband, blocking and sensitivity, the module is suited for rugged, noisy industrial environments where good channel selectivity is required. Other standard features include a range of selectable RF power levels (maximum 50 mW RF power) and data rates and user data input is transparent allowing the use of proprietary protocol. The STD-601 module is surface mountable, requiring minimal PCB area and is just 5 mm high making it suitable for design into portable equipment. Key specifications of the STD-601 400 MHz include 429, 434, 447 and 458 MHz customer selectable frequency bands, selectable RF power outputs of 50, 25, 20, 10, 5 and 1 mW, selectable RF bit rates of 1200, 2400, 4800, 9600, 19200 bps, and asynchronous data input with transparent interface. Further features include power consumption of 35 mA typical (TX 10 mW, 3 V), communication range of 600 m (LOS) at 10mW, compact size 20×32×5mm SMD. LPRS www.lprs.co.uk Implantable RF module is only 5.5x4.5x1.5mm Measuring only 5.5x4.5x1.5mm, Microsemi’s ZL70323 RF module is the smallest radio module the company has ever produced. Optimized for implantable medical devices such as pacemakers, cardiac defibrillators and neurostimulators, the ZL70323 implements all RF-related functions needed to deploy the implant node in a Medical Implantable Communications Service (MICS) RF telemetry system. The integrated antenna tuning circuit allows the module to be used with a wide range of implantable antennas (nominal antenna impedance is 100+j150 ohms). The module includes the ZL70103-based MICS-band RF transceiver with integrated matching network, surface acoustic wave (SAW) filter for suppression of unwanted blockers, and antenna tuning; a 2.45GHz wake-up receiver matching network; an integrated 24MHz reference frequency crystal; and decoupling capacitors and series termination resistors. The device operates in the 402–405 MHz MICS band. Multiple low power wake-up options are supported including using an ULP 2.45 GHz industrial, scientific and medical (ISM) band wake-up receive option. The ZL70103 consumes less than 6mA when transmitting or receiving and consumes only 290nA when in a periodic sleep/sniff mode (1 second sniff interval). Microsemi www.microsemi.com 2GHz to 14GHz mixer with LO frequency doubler achieves low IIP3 LTC5549 is a double-balanced mixer that can operate either as an upconverter or downconverter, with a wide RF frequency range from 2 GHz to 14 GHz. It has high linearity of 24.4 dBm IIP3 at 9 GHz. LTC5549 enables efficient microwave transmitter and receiver designs with an integrated LO buffer that needs only a 0-dBm drive level, effectively eliminating an external high power LO amplifier circuit. It has an integrated on-chip, switchable frequency doubler for LO signal, providing an option to use lower cost, commonly available low frequency synthesisers. The LTC5549 employs wideband integrated balun transformer optimised to extend RF frequency bandwidth from 2 GHz to 14 GHz while enabling single-ended operation. Its IF port also has wide bandwidth up to 6 GHz. All three ports are 50-Ω matched. The mixer offers high port-to-port isolation, minimising undesireable LO leakage, and easing external filtering requirements. Conversion loss is specified as 8.0 dB. The device’s performance matches a range of microwave applications including microwave backhaul, high unlicensed band LTE-Advanced base stations, satellite broadband radios, radar systems, X-band and Ku band transceivers, test equipment and satellite modems. The device is available in a 12-lead, 3 x 2 mm plastic QFN package, rated for operation from –40°C to 105°C case temperature. Linear Technology www.linear.com 44 Electronic Engineering Times Europe September 2015 www.electronics-eetimes.com


EETE SEP 2015
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