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0AMA Datasheet(PDF) 1 Page - Mitel Networks Corporation |
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0AMA Datasheet(HTML) 1 Page - Mitel Networks Corporation |
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1 / 23 page  PDSP16510A MA 1 Fig. 1. Block Diagram FEATURES Completely self contained FFT Processor Internal RAM supports up to1024 complex points 16 bit data and coefficients plus block floating point for increased dynamic range 450 MIP operation gives 98 microsecond transforma- tion times for 1024 points Up to 40MHz sampling rates with A grade multiple devices. Internal window operator gives 67dB side lobe attenuation and needs no external ROM. 132 pin surface mount package The PDSP16510 performs Forward or Inverse Fast Fourier Transforms on complex or real data sets containing up to 1024 points. Data and coefficients are each represented by 16 bits, with block floating point arithmetic for increased dynamic range. An internal RAM is provided which can hold up to 1024 complex data points. This removes the memory transfer bottleneck, inherent in building block solutions. Its organisa- tion allows the PDSP16510 to simultaneously input new data, transform data stored in the RAM, and to output previous results. No external buffering is needed for transforms con- taining up to 256 points, and the PDSP16510 can be directly connected to an A/D converter to perform continuous trans- forms. The user can choose to overlap data blocks by either 0%, 50%, or 75%. Inputs and outputs are asynchronous to the 40MHz system clock used for internal operations. A 1024 point complex transform can be completed in some 98 µs, which is equivalent to throughput rates of 450 million operations per second. Multiple devices can be con- nected in parallel in order to increase the sampling rate up to the 40MHz system clock. Six devices are needed to give the maximum performance with 1024 point transforms. Either a Hamming or a Blackman-Harris window operator can be internally applied to the incoming real or complex data. The latter gives 67dB side lobe attenuation. The operator values are calculated internally and do not require an external ROM nor do they incur any time penalty. The device outputs the real and imaginary components of the frequency bins. These can be directly connected to the PDSP16330 in order to produce magnitude and phase values from the complex data. Rev A B C D Date MAR 1993 JAN 1997 OCT 1998 NOTE Polyimide is used as an inter-layer dielectric and as glassivation. Polymeric material is also used for die attach which according to the requirement in paragraph 1.2.1.b. (2) precludes catagorising this device as fully compliant. In every other respect this device has been manufactured and screened in full accordance with the requirements of Mil-Std 883 (latest revision). CHANGE NOTIFICATION The change notification requirements of MIL-PRF-38535 will be implemented on this device type. Known customers will be notified of any changes since the last buy when ordering further parts if significant changes have been made. ORDERING INFORMATION PDSP16510A MA GCPR (Power Ceramic QFP Package - HIREL LEVEL A Screening) PDSP16510A MA AC1R (Power Ceramic PGA Package - HIREL LEVEL A Screening) PDSP16510A MA Stand Alone FFT Processor Supersedes January 1997 version, DS3762 - 2.0 DS3762 - 3.0 October 1998 |
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