Electronic Components Datasheet Search
  English  ▼
ALLDATASHEET.COM

X  

PDSP16256A Datasheet(PDF) 6 Page - Zarlink Semiconductor Inc

Part # PDSP16256A
Description  Programmable FIR Filter
Download  25 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  ZARLINK [Zarlink Semiconductor Inc]
Direct Link  http://www.zarlink.com
Logo ZARLINK - Zarlink Semiconductor Inc

PDSP16256A Datasheet(HTML) 6 Page - Zarlink Semiconductor Inc

Back Button PDSP16256A Datasheet HTML 2Page - Zarlink Semiconductor Inc PDSP16256A Datasheet HTML 3Page - Zarlink Semiconductor Inc PDSP16256A Datasheet HTML 4Page - Zarlink Semiconductor Inc PDSP16256A Datasheet HTML 5Page - Zarlink Semiconductor Inc PDSP16256A Datasheet HTML 6Page - Zarlink Semiconductor Inc PDSP16256A Datasheet HTML 7Page - Zarlink Semiconductor Inc PDSP16256A Datasheet HTML 8Page - Zarlink Semiconductor Inc PDSP16256A Datasheet HTML 9Page - Zarlink Semiconductor Inc PDSP16256A Datasheet HTML 10Page - Zarlink Semiconductor Inc Next Button
Zoom Inzoom in Zoom Outzoom out
 6 / 25 page
background image
PDSP16256/A
6
Figure. 4 Block Diagram
Operational Overview
The PDSP16256 is an application specific FIR filter for
use in high performance digital signal processing
systems. Sampling rates can be up to 25MHz. The
device provides the filter function without any software
development, and the options are simply selected by
loading a control register. The device can be user
configured as either a single filter, or as two separate
filters. The latter can provide two independent filters for
the in-phase and quadrature channels after IQ splitting,
or can provide two filters in cascade for greater stop
band rejection.
The device operates from a system clock, with rates up
to 25MHz. This clock must be 1, 2, 4, or 8 times the
required sampling frequency, with the higher
multiplication rates producing longer filter networks at
the expense of lower sampling rates. Devices can be
connected in cascade to produce longer filter lengths.
This can be accomplished without the need for any
additional external data delays, and all the single device
options remain available.
Continuous inputs are accepted, and continuous results
produced after the internal pipeline delay. Connection
can be made directly to an A-D converter. The filter
operation can be synchronised to a Filter Enable signal
(FEN) whose positive going edge marks the first data
sample. The internal multiplier accumulator array can be
cleared with a dedicated input. This is necessary if
erroneous results obtained during the normal data ‘flush
through’ are not permissible in the system.
Coefficients can be loaded from a host system using a
conventional peripheral interface and separate data
bus. Alternatively, they can be loaded as a complete set
from a byte wide EPROM. The device produces
addresses for the EPROM and a BUSY output indicates
that the transfer is occurring. Up to sixteen devices can
have their coefficients supplied from a single EPROM.
These devices need not necessarily be part of the same
filter network.
Each of the filter networks shown in Fig. 4 contains eight
systolic multiplier accumulator stages; an example with
four stages is shown in Fig. 5. Input data flows through
the delay lines and is presented for multiplication with the
required coefficient. This is added to either the last result
from this accumulator or the result from the previous
accumulator. The filter results progress along the adders
at the data sample rate. If the sample rate equals SCLK
divided by four, for example, then the accumulated result
is passed onto the next stage every fourth cycle. The
structure described is highly efficient when used to
calculate filtered results from continuous input data.
A comprehensive digital filter design program is
available for PC compatible machines. This will optimise
the filter coefficients for the filter type required and
number of taps available at the selected sample rate
within the PDSP16256 device. An EPROM file can be
automatically generated in Motorola S-record format.
SWAP
A7:0
C15:0
CCS
WEN
CS
BYTE
EPROM
FEN
DFEN
DCLR
RES
COEFFICIENT
STORAGE
AND
CONTROL
SCLK
FRUN
CLKOP
BUSY
DA15:0
F31:0
OEN
NETWORK
A
NETWORK
B
DUAL
MODE
SINGLE
MODE
MUX
DB15:0
X31:0


Similar Part No. - PDSP16256A

ManufacturerPart #DatasheetDescription
logo
Mitel Networks Corporat...
PDSP16256A MITEL-PDSP16256A Datasheet
423Kb / 28P
   Programmable FIR Filter
PDSP16256A MITEL-PDSP16256A Datasheet
268Kb / 24P
   Programmable FIR Filter
PDSP16256A MITEL-PDSP16256A Datasheet
121Kb / 12P
   I/Q Splitter/NCO
PDSP16256AC MITEL-PDSP16256AC Datasheet
423Kb / 28P
   Programmable FIR Filter
PDSP16256AC1R MITEL-PDSP16256AC1R Datasheet
423Kb / 28P
   Programmable FIR Filter
More results

Similar Description - PDSP16256A

ManufacturerPart #DatasheetDescription
logo
Mitel Networks Corporat...
PDSP16256 MITEL-PDSP16256 Datasheet
423Kb / 28P
   Programmable FIR Filter
PDSP16256 MITEL-PDSP16256_98 Datasheet
268Kb / 24P
   Programmable FIR Filter
logo
Zarlink Semiconductor I...
VP16256 ZARLINK-VP16256 Datasheet
459Kb / 19P
   Programmable FIR FIlter
logo
Mitel Networks Corporat...
VP16256 MITEL-VP16256 Datasheet
228Kb / 20P
   Programmable FIR Filter
logo
ATMEL Corporation
AT76C002 ATMEL-AT76C002 Datasheet
38Kb / 4P
   Programmable FIR Filter
AT76C001 ATMEL-AT76C001 Datasheet
73Kb / 9P
   CBIC Programmable FIR Filter
logo
Renesas Technology Corp
HSP43168 RENESAS-HSP43168 Datasheet
851Kb / 25P
   Dual FIR Filter
July 27, 2009
logo
Intersil Corporation
HSP43168 INTERSIL-HSP43168 Datasheet
915Kb / 25P
   Dual FIR Filter
HSP43168 INTERSIL-HSP43168_07 Datasheet
929Kb / 25P
   Dual FIR Filter
HSP43168883 INTERSIL-HSP43168883 Datasheet
180Kb / 10P
   Dual FIR Filter
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25


Datasheet Download

Go To PDF Page


Link URL




Privacy Policy
ALLDATASHEET.COM
Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Link Exchange   |   Manufacturer List
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
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