 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
PDSP16515GCPR Datasheet(PDF) 1 Page - Mitel Networks Corporation |
|
|
|||||||||||||||||||||||||||||
PDSP16515GCPR Datasheet(HTML) 1 Page - Mitel Networks Corporation |
|
|
1 / 27 page  PDSP16515A 1 Ordering Information DS3922 Issue 2.0 April 1999 PDSP16515A Stand Alone FFT Processor Advance Information The PDSP16515A performs Forward or Inverse Fast Fourier Transforms on complex or real data sets containing up to 1024 points. Data and coefficient input are both represented by 16 bits. Data is expanded internally to 18 bits and subject to Block Floating Point arithmetic to preserve a greater 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 organisation allows the PDSP16515A to simultaneously input new data, transform data stored in the RAM, and to output previous results. No external buffering is needed for transforms containing up to 256 points, and the PDSP16515A can be directly connected to an A/D converter to perform continuous transforms. The user can choose to overlap data blocks by either 0%, 50%, or 75%. Inputs and outputs are synchronous to the 45MHz system clock used for internal operations. Features q Completely self contained FFT Processor q Pin and functionally compatible with the PDSP16510A q Expanded width internal RAM supports up to 1024 complex points q 18 bit internal data bus with block floating point arithmetic for increased dynamic range q 500 MIP operation gives 87 microsecond transformation times for 1024 points q Up to 45MHz sampling rates with multiple devices. q Up to 85dB noise rejection q A choice of internal window operators with no external ROM provide up to 67dB side lobe attenuation. q 84 pin PGA or 132 pin surface mount package Associated Products PDSP16330 Pythagoras Processor. PDSP16256 Programmable FIR Filter. PDSP16350 I/Q Splitter / NCO PDSP16510A Stand Alone FFT Processor PDSP16515A C0 AC ( Commercial - PGA Package ) PDSP16515A C0 GC ( Commercial - Leaded Chip Carrier ) PDSP16515A B0 AC ( Industrial - PGA Package ) PDSP16515A B0 GC ( Industrial - Leaded Chip Carrier ) PDSP16515A A0 AC ( Military - PGA Package ) PDSP16515A A0 GC ( Military - Leaded Chip Carrier ) PDSP16515A/MA/GCPR ( Military - Screened Leaded Chip Carrier. See separate datasheet for details ) A 1024 point complex transform can be completed in some 87 µs, which is equivalent to throughput rates of 500 million operations per second. Multiple devices can be connected in parallel in order to increase the sampling rate up to the 45MHz 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 increased internal bus size together with block floating arithmetic produce up to 85dB of noise rejection. 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. |
Similar Part No. - PDSP16515GCPR |
|
Similar Description - PDSP16515GCPR |
|
|
Link URL |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link to Datasheet | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |
New Zealand ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
