Datasheet > PDSP16515AGCPR

PDSP16515AGCPR

更新时间： 2024-11-01 03:39:11

品牌	Logo	应用领域
加拿大卓联 - ZARLINK		/
页数	文件大小	规格书
25页	174K
描述
Stand Alone FFT Processor

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PDSP16515AGCPR 数据手册

PDSP16515A

Stand Alone FFT Processor

Advance Information

DS3922

ISSUE 2.0

April 1999

Ordering Information

Features

●

Completely self contained FFT Processor

Pin and functionally compatible with the

PDSP16510A

Expanded width internal RAM supports up to 1024

complex points

18 bit internal data bus with block floating point

arithmetic for increased dynamic range

500 MIP operation gives 87 microsecond

transformation times for 1024 points

Upto45MHzsamplingrateswith multipledevices.

Up to 85dB noise rejection

A choice of internal window operators with no

external ROM provide up to 67dB side lobe

attenuation.

PDSP16515A C0 AC

PDSP16515A C0 GC

PDSP16515A B0 AC

PDSP16515A B0 GC

PDSP16515A A0 AC

PDSP16515A A0 GC

PDSP16515A/MA/GCPR

( Commercial - PGA

Package )

●

( Commercial - Leaded

Chip Carrier )

( Industrial - PGA

Package )

( Industrial -

Chip Carrier )

( Military - PGA

Package )

Leaded

●

( Military - Leaded Chip

Carrier )

●

84 pin PGA or 132 pin surface mount package

( Military - Screened

Leaded Chip Carrier. See separate datasheet for

details )

Associated Products

PDSP16330 Pythagoras Processor.

PDSP16256 Programmable FIR Filter.

PDSP16350 I/Q Splitter / NCO

A 1024 point complex transform can be completed in

some 87µs, 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.

PDSP16510A Stand Alone FFT Processor

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.

Either a Hamming or a Blackman-Harris window

operatorcanbeinternallyappliedtotheincomingrealor

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.

An internal RAM is provided which can hold up to 1024

complexdatapoints. Thisremovesthememorytransfer

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, andthePDSP16515Acanbedirectlyconnected

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.

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.

12 3 4 5 6 7...25

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与PDSP16515AGCPR相关器件

型号	品牌	获取价格	描述	数据表
PDSP16515AMA	ZARLINK	获取价格	Stand Alone FFT Processor
PDSP16515AMAGCPR	DYNEX	获取价格	FFT Processor, 16-Bit, CMOS, CQFP132
PDSP16515GCPR	MITEL	获取价格	Stand Alone FFT Processor
PDSP16515MA	MITEL	获取价格	Stand Alone FFT Processor
PDSP16520	ZARLINK	获取价格	32K BUCKET BUFFER
PDSP16520AOAC	DYNEX	获取价格	Multi-Port SRAM, 256X16, CMOS, CPGA144
PDSP16520BOAC	DYNEX	获取价格	Multi-Port SRAM, 256X16, 10ns, CMOS, CPGA144
PDSP16540	ZARLINK	获取价格	Stand Alone FFT Processor
PDSP16540A0GC	ETC	获取价格	MISC MEMORY\|QFL\|132PIN\|PLASTIC
PDSP16540B0AC	ETC	获取价格	MISC MEMORY\|PGA\|84PIN\|PLASTIC

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