- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄367871 > PDSP16540 (Zarlink Semiconductor Inc.) Stand Alone FFT Processor PDF資料下載
參數(shù)資料
| 型號： | PDSP16540 |
| 廠商： | Zarlink Semiconductor Inc. |
| 英文描述： | Stand Alone FFT Processor |
| 中文描述： | 攻殼機(jī)動隊(duì)FFT處理器 |
| 文件頁數(shù)： | 1/23頁 |
| 文件大小： | 190K |
| 代理商： | PDSP16540 |
PDSP16510A
PDSP16510A
1
WORKSPACE
RAM
WORKSPACE
RAM
3 TERM
WINDOW
OPERATOR
FOUR
DATA PATHS
OUTPUT
BUFFER
RESULT OUPUT
DATA INPUT
COEFFICIENT
ROM
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 multiple devices.
Internal window operator gives 67dB side lobe
attenuation and needs no external ROM.
84 pin PGA or 132 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 synchronous to the
40MHz system clock used for internal operations.
A 1024 point complex transform can be completed in
some 98
μ
s, 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.
Fig. 2. Typical 256 Point Real Only System Performing Continuous Transforms
ASSOCIATED PRODUCTS
PDSP16540
Bucket Buffer
PDSP16330
Pythagoras Processor.
PDSP16256
Programmable FIR Filter.
PDSP16350
I/Q Splitter / NCO
D15:0
R15:0
I15:0
X
Y
PHASE
MAGNITUDE
CLK
DIS
PDSP16510
PDSP16330
A/D
ANALOG
INPUT
SAMPLE
CLOCK
SCALE VALUE
S3:0
DOS
DAV
DEN
GND
AVAILABLE
AUX15:0
CONFIGURATION
WORD
DEF
RESET
INEN
GND
Stand Alone FFT Processor
DS3475
ISSUE 4.4
May 1996
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PDSP16515AGCPR | Stand Alone FFT Processor |
| PDSP16515AMA | Stand Alone FFT Processor |
| PDT1008 | THYRISTOR MODULE |
| PDTC114Y | NPN resistor-equipped transistors |
| PDTC114YK | NPN resistor-equipped transistors |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PDSP16540A0GC | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:MISC MEMORY|QFL|132PIN|PLASTIC |
| PDSP16540B0AC | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:MISC MEMORY|PGA|84PIN|PLASTIC |
| PDSP16540B0GC | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:MISC MEMORY|QFL|132PIN|PLASTIC |
| PDSP16540C0AC | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:MISC MEMORY|PGA|84PIN|PLASTIC |
| PDSP16540C0GC | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:MISC MEMORY|QFL|132PIN|PLASTIC |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。