MicroCrystal RV-8803 – A Really Accurate RTC June 17, 2019- RTC chips traditionally were the domain of Maxim and NXP. Switzerland-based MicroCrystal recently made quite a buzz with its RV-8803, which offers simple integration, an I2C interface and extreme accuracy. Let us start out by looking at a system overview. Figure one shows how this I2C RTC is made up internally – interested observers note […] Analog Devices’ LTM2887 – If a Digital Bus Needs Galvanic Isolation June 15, 2019- In theory, digital buses are intended to connect things to one another. Sadly, one sometimes wants but a logical connection – in many cases, galvanic isolation helps out. Should you ever feel like isolating very fast buses, definitely give the LTM2887 a chance. From a technical point of view, Linear Technologies attempt at entering the […] AVAGO APDS-9008 or APDS-9005-020 – Keeping an Eye on Ambient Light June 14, 2019- Recent times saw quite a bit of interest for part numbers such as the APDS-9008 or APDS-9005-020 – they are a very interesting type of ambient light sensor. One of the oldest questions in regards to light sensors involves their spectral sensitivity. If a part is to output but one voltage level, the conversion between […] STMicroelectronics’ LIS2DH12 – Low Power Motion Sensing June 12, 2019- Apple’s iPhone introduced gyroscopic sensors to a wider range – before that, accelerometers were not commonly found in consumer hardware. STM sells excellent parts which, however, get little media attention – time to take a look at the LIS2DH12. Integrating the part into your circuit as an MPU6500 alternative or MPU9500 alternative is not difficult. […] Panasonic AMG8833 – FLIR for cheap June 7, 2019- FLIR made infrared thermal sensors cool – sadly, their parts are all but cheap (and suffer from export control problems). Panasonic’s Grid-EYE family is a low-resolution alternative which comes at significantly lower cost. From a technical point of view, Panasonic’s image sensor could not be simpler. We are looking at an 8×8 sensor with an […] DipTronics DTS-62R-V – Small Switch, Very Big (and Very Cheap) June 5, 2019- When yours truly was but a lowly cadet, various US manufacturers produced (pricey but quite reliable) switches. Chinese vendors recently started to catch up – seeing the DTS-62R-V top our customer interest list shows that the run stage of the crawl-walk-run cycle is reached. DipTronics has been around the Asian switch market for ages, exhibiting […]
Accelerate machine learning with the Xilinx ALVEO A-U200-P64G-PQ-G
Bitcoin mining experienced a severe acceleration with the introduction of dedicated accelerator ICs, most of which achieved effiency ratings miles above normal GPUs. Xilinx now introduces a series of FPGA-based accelerators intended for data center and machine learning jobs.
From a principal point of view, both ALVEO U200 and ALVEO U250 are a set of FPGAs which connect to the workstation via a PCIe link. In addition to that, a MicroUSB and a network interface are added to the accelerator cards, allowing data center administrators effortless access to the various configuration interfaces.
In addition to that, a wide variety of SDKs are provided: they allow developers to create kernel elements optimized for the needs of the ALVEO’s internal architecture.
Memory access traditionally was a bottleneck for FPGA accelerator cards. XILINX solves this problem by providing local memory. A total of four slots take one DDR4 DIMM each, XILINX officially permits only the use of the MTA18ASF2G72PZ-2G3B1 16GB unit produced by Micron.
…local DDR4 memory reduces bus contention
Keep in mind that Xilinx offers a total of four versions of the card. A-U200-P64G-PQ-G and A-U250-A64G-PQ-G are a bit heavier, but come with active cooling. A-U200-P64G-PQ-G and A-U250-P64G-PQ-G are a bit lighter, but are passively cooled and thus require airflow from the server blade.
Cooling the passive Alveos can become a hassle…
Given that the Datacenter Accelerometers are just starting to show up on the market, distributor margins are extremely wide. As of this writing, prices – as shown in the figure – range from 9000€ to 11000€ – definitely do run an OEMSecrets search before committing!
Distributor margins are extremely wide…