PDSP16510AMA Mitel Networks Corporation, PDSP16510AMA Datasheet
PDSP16510AMA
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PDSP16510AMA Summary of contents
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Supersedes January 1997 version, DS3762 - 2.0 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 ...
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PDSP16510A MA Fig. 2. Typical 256 Point Real Only System Performing Continuous Transforms 2 Pin Out for 84 PGA Package (AC84) - bottom view ...
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Pin Out for 132 Leaded Chip Carrier (GC132) PDSP16510A MA 3 ...
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PDSP16510A MA SIGNAL TYPE DESCRIPTION D15:0 I Data input during real only mode, The real component in complex data mode. AUX15:0 I When DEF is active AUX15:0 are used to define the operating mode as defined in Table 3. When ...
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It does, however, reduce the actual frequency resolution, and the Hamming window may then be preferable. Data in and out of the device is represented ...
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PDSP16510A MA block floating point shifting scheme, which is discussed later. Overflow can NEVER occur if the 3 bit option is chosen, but at the expense of worse dynamic range. When overflow does occur a flag is raised which can ...
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The device is then configured in a mode with separate load, transform and dump operations. The internal arrangement is shown in Fig. 5. The support of an external input buffer is ...
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PDSP16510A MA complete or DAV will never go active. See the section on multiple device operation. LOADING DATA Data loading is controlled by three signals; DIS an input strobe, INEN a load enable, and LFLG an output flag. Detailed timing ...
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The DOS priming strobes must be enabled by the DEN input, unless the device has been configured in one of the multiple device modes ( See section on Multiple Device Systems ). ...
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PDSP16510A MA input. When DEN and DOS are both active an internal read operation occurs, and an address generator is incremented. DAV goes in-active in response to the DOS edge needed to read the last output, unless Bit 15 in ...
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Fig. 7. Host Controlled System GENERAL DUMP CONSIDERATIONS The tri-state drivers on the output buses are only enabled when both DAV and DEN are active. When DEN is tied permanently, low the output bus will start to become valid from ...
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PDSP16510A MA with a complex transform of the same size. The point complex mode becomes real mode, but the change from complex transforms real transforms is ...
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SINGLE DEVICE SAMPLING RATES In a single device system the maximum sampling rate is dependent on the transform size, the data overlap, and whether real or complex data is applied. Table 4 gives the times taken to complete the transforms ...
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PDSP16510A MA tiple concurrent transforms are performed ( for example two LFLG transitions are sometimes needed to support block overlapping. This is fully explained in the section on Mode 1 sampling rates. ...
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DAV output will not asynchronously go active as happens in a single device system. Instead DAV will only go active when DEN eventually goes active. Since DEN is the inverted DAV output from a previous device thus never ...
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PDSP16510A MA NnS > [ for 50% overlapping NnS > [ for 75% overlapping N is the number of devices the transform size the ...
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When data is from a single source, and no overlaps are needed, only the real input should be used. If 50% or 75% overlaps are needed from a single source of real data, the device always expects blocks to ...
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PDSP16510A MA Fig. 11. External Window Generator overcome by using more data samples. This may not always be possible because of other system constraints. A common rule of thumb defines the resolution of an FFT system as half the full ...
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Arithmetic Accuracy Max Tone WRT Noise 16 bit,unconditional 60 scaling 24 bit arithmetic with unconditional scaling bit inputs 16 bit inputs with 74 PDSP16510 block FP Full 32 bit Floating point with 16 bit inputs 93 Table 8. ...
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PDSP16510A MA ABSOLUTE MAXIMUM RATINGS [See Notes] Supply voltage Vcc Input voltage V IN Output voltage V OUT Clamp diode current per pin I (see note 2) K Static discharge voltage (HMB) Storage temperature T S Junction Temperature, Military Package ...
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Part No: PDSP16510A MA Stand Alone FFT Processor Package Type: GC132 Pin No. Pin No. Con ...
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PDSP16510A MA Part No: PDSP16510A MA Stand Alone FFT Processor Package Type: AC84 Pin No. Pin No. Con N/C A2 N/C A3 N/C A4 N N/C A10 N/C A11 ...
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