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EETE MAY 2013

Reader O f f er Win one of five Sabre Lite i.MX6 development board platforms The development platform for i.MX 6Quad from element14 (built to the Freescale SABRE Lite design) is an evaluation platform featuring the powerful i.MX 6Q, a multimedia application processor with Quad ARM Cortex- A9 cores at 1.2 GHz from Freescale Semiconductor. This month, Freescale and element14 are giving away five such platforms, worth £128.06 each, for EETimes Europe’s readers to win. The platform helps evaluate the rich set of peripherals and includes a 10/100/ Gb Ethernet port, SATA-II, HDMI v1.4, LVDS, parallel RGB interface, touch screen interface, analog headphone/microphone, micro TF and SD card interface, USB, serial port, JTAG, camera interface, and input keys for Android. The i.MX 6Quad processor represents Freescale Semiconductor’s latest achievement in integrated multimedia applications processors. It includes 2D and 3D graphics processors, 3D 1080p video processing, and integrated power management. The processor provides a 64-bit DDR3/LVDDR3-1066 memory interface and a number of other interfaces for connecting peripherals, such as WLAN, Bluetooth, GPS, hard drive, displays, and camera sensors. The SABRE Lite development kit ships with a USB cable, an RS-232 cable, a serial cable, an Ethernet cable, a 5Vdc (4A) power supply, a MicroSD card pre-loaded with the Linux BSP from TimeSys, and a quick-start guide. Check the reader offer online at www.electronics-eetimes.com First 8-channel PWM HD audio processor with dual asynchronous sample rate converters Texas Instruments has introduced the industry’s first 8-channel pulse-width modulator (PWM) audio processor with dual asynchronous sample rate converters (ASRCs) integrated on a single chip. The HD-compatible TAS5548 allows home and pro audio designers to seamlessly mix two audio sources, providing design flexibility and cost savings compared to competitive solutions that require two chips. It accepts sample rates from 8 kHz to 192 kHz and converts them to a fixed rate of 96 kHz or 192 kHz, eliminating the need to create, store and change coefficients. This simplifies the design of digital multi-channel products, such as Blu-ray home-theater-in-a-box (HTiB), A/V receivers, mini/micro combos, and soundbars. The TAS5548’s 40-kHz audio bandwidth is compatible with Dolby True HD and DTS-HD. Designers can optimize their products with rich audio processing capabilities, such as 7-band parametric equalization (EQ), bass and treble tone control, volume and loudness control, dynamic range compression (DRC), and input and output mixing. Two integrated 4-channel ASRC cores allow audio system designers to switch sample rates without changing coefficients, while native processing at 96 kHz for 8-channel output enables ultra-low out-of-band noise and jitter suppression. An extra microphone and I2S input combines with the ASRC’s ability to mix two different sample rate sources. Texas Instruments www.ti.com 2.6x2.6mm 3D-TOF camera chip delivers millimeter resolution The fully integrated 3D time-of-flight (TOF) camera chips epc600 and epc610 from Espros Photonics are highly advanced sensor systems designed on a 2.6x2.6mm footprint. Only a few passive components and a couple of LEDs are required to build a distance sensor with stunning performance. The manufacturer claims that measuring ranges of hundred meters and over can be achieved at a resolution in the millimeter range. Measurement cycle times of less than one millisecond are possible. The chips will find use in a multitude of industrial applications such as light control sensors, distance monitoring, proximity detection, gesture control, contact less push buttons, or security and surveillance systems. Espros Photonics AG www.espros.ch Single point LED lighting array with tuneable colour output The Tiger Zenigata LED array is presented as the first single point light source to feature ‘tuneable’ colour temperature output, enabling light output colour to be smoothly adjusted to optimise comfort, productivity and well being. The Tiger Zenigata LED module features independently controllable intermeshed ‘stripes’ of yellow (cool) and orange (warm) phosphors (hence the ‘Tiger’ derivation). 168 blue LED chips are coated by strips of different blends of red and green phosphors, which create the warm or cold white light components. A dual-channel LED Driver is used to independently adjust the output of each LED ‘stripe’ and so changes the overall colour temperature output of the array. The circuit for the 2700K ‘stripe’ is made up of 96 chips arranged in eight parallel strips of 12 LEDs. The 5700K ‘stripe’ is created from 72 chips in six parallel strips. Each ‘stripe’ needs a forward voltage of 37V at a maximum Power Supply of 700 mA. Any colour temperature between 2700K and 5700K can be realised and depending on the colour temperature chosen the luminous flux emitted ranges from 1,900 to 2,200 lm. The Tiger Zenigata achieves a maximum of 92 CRI for cold white and up to 94 CRI for warm white. With a circular LES of 17 mm in diameter, the Tiger Zenigata delivers the optical characteristics of a single-point light source. Ismosys www.ismosys.com 46 Electronic Engineering Times Europe May 2013 www.electronics-eetimes.com


EETE MAY 2013
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