Motore di ricerca datesheet componenti elettronici
  Italian  ▼
ALLDATASHEETIT.COM

X  

LF3320QC12 Scheda tecnica(PDF) 9 Page - LOGIC Devices Incorporated

Il numero della parte LF3320QC12
Spiegazioni elettronici  Horizontal Digital Image Filter
Download  24 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Produttore elettronici  LODEV [LOGIC Devices Incorporated]
Homepage  http://www.logicdevices.com
Logo LODEV - LOGIC Devices Incorporated

LF3320QC12 Scheda tecnica(HTML) 9 Page - LOGIC Devices Incorporated

Back Button LF3320QC12 Datasheet HTML 5Page - LOGIC Devices Incorporated LF3320QC12 Datasheet HTML 6Page - LOGIC Devices Incorporated LF3320QC12 Datasheet HTML 7Page - LOGIC Devices Incorporated LF3320QC12 Datasheet HTML 8Page - LOGIC Devices Incorporated LF3320QC12 Datasheet HTML 9Page - LOGIC Devices Incorporated LF3320QC12 Datasheet HTML 10Page - LOGIC Devices Incorporated LF3320QC12 Datasheet HTML 11Page - LOGIC Devices Incorporated LF3320QC12 Datasheet HTML 12Page - LOGIC Devices Incorporated LF3320QC12 Datasheet HTML 13Page - LOGIC Devices Incorporated Next Button
Zoom Inzoom in Zoom Outzoom out
 9 / 24 page
background image
DEVICES INCORPORATED
Video Imaging Products
2-9
LF3320
Horizontal Digital Image Filter
08/16/2000–LDS.3320-N
The LF3320 is capable of supporting
24-bit data and 12-bit coefficients or
12-bit data and 24-bit coefficients.
When configured for this mode of
operation, the Filter B output is scaled
by 2-12 before adding it to the Filter A
output. This mode of operation is only
valid in single filter mode.
To configure the LF3320 for this mode,
bit 3 of Configuration Register 5 must
be set to 1; this will account for the
scaling function (Table 7). For 24-bit
data, DIN11-0 becomes the MSB
(Filter A) and RIN11-0 becomes the
LSB (Filter B), bit 2 of Configuration
Register 5 must be set to 0. To insure
correct results, the coefficient sets must
be aligned appropriately; that is to say,
the coefficient set used for the MSB
must be the same for the LSB. For
24-bit coefficients, the coefficient banks
for Filter A will correspond to the
coefficient MSB and the coefficient
banks for Filter B will correspond to
the coefficient LSB; therefore, bit 2 must
be set to 1.
Once again, to insure correct results,
the coefficient sets must be aligned
appropriately; that is to say, the MSB
coefficients must correspond to their
LSB coefficients. The output data will
appear at DOUT15-0; output appearing
at ROUT3-0/COUT11-0 will not be of
any value. Bit 1 is set to 0 (for single
filter mode) and bit 0 is set to 0
(cascade mode must be disabled).
Therefore, to realize 24-bit data/12-bit
coefficients the user must write 008H
to Configuration Register 5; conversely,
for 12-bit data/24-bit coefficients the
user must write 00CH to Configuration
Register 5.
The Double Wide Data/Coefficient
Mode is valid in the Matrix Multiplica-
tion Mode; however, special consider-
ations must be observed when these
two modes are combined. The LF3320
must be configured for single filter
mode only, for a maximum (8x8)
matrix. In addition, the user must
disable the cascaded filter mode, the
accumulator access mode, and the data
DIN11-0
I/D
REGISTERS
FILTER
A
FILTER
B
DOUT15-0
I/D
REGISTERS
R.S.L.
CIRCUIT
R.S.L.
CIRCUIT
12
16
ROUT3-0 / COUT11-0
16
RIN11-0
12
FIGURE 11. ACCUMULATOR ACCESS MODE
reversal (Table 7). For additional
considerations, refer to the correspond-
ing mode of operation section.
Accumulator Access Mode
Accumulator access allows the user to
accumulate the Filter A output with the
Filter B output. Therefore, this mode is
only valid when the device has been
configured for dual filter operation. To
configure the device for this mode, bit 1
and bit 5 must be set to 1; bit 5 is the
corresponding accumulator access bit
(Table 7). Writing 022H to Configura-
tion Register 5 configures the device to
accumulate the Filter A output with the
Filter B output. All remaining Configu-
ration Registers, 0 through 4 inclusive,
will depend on specific application
requirements (see Tables 2 through 4).
In this mode of operation, the accumu-
lated output is realized at DOUT15-0.
The output data at
ROUT15-0/COUT15-0 is the Filter B
output that is normally expected;
however, the accumulated output data
(DOUT15-0) will be delayed by one
clock cycle, compared to the Filter B
output data.
This type of operation is useful when
two filtered data streams (i.e. I+jQ)
need to be accumulated. Such is the
requirement to satisfy the equation,
y(t) = cos(vt)+jsin(vt). The complex
data can be streamed and filtered
using a respective ‘I’ filter and
‘Q’ filter. To convert the complex result
into a real result, as seen at the LF3320
output, two multiplies and one accu-
mulation is required. The cosine and
sine functions are realized through the
coefficient sets; consequently, multi-
plied by the corresponding ‘I’ and ‘Q’
data streams. To satisfy the remainder
of the equation, Filter A and Filter B
must be accumulated.
As previously stated, this mode of
operation is only valid with the dual
filter mode configuration. All modes of
operation, that are valid in the dual
filter mode, are valid with the accumu-
lator access mode. For additional
considerations, refer to the correspond-
ing mode of operation section.
FUNCTIONAL DESCRIPTION
ALUs
The ALUs double the number of filter
taps available, when symmetric
coefficient sets are used, by pre-adding
data values which are then multiplied
byacommoncoefficient(see Figure 12).


Codice articolo simile - LF3320QC12

Produttore elettroniciIl numero della parteScheda tecnicaSpiegazioni elettronici
logo
LOGIC Devices Incorpora...
LF3321 LODEV-LF3321 Datasheet
1Mb / 28P
   Horizontal Digital Image Filter Improved Performance
More results

Descrizione simile - LF3320QC12

Produttore elettroniciIl numero della parteScheda tecnicaSpiegazioni elettronici
logo
LOGIC Devices Incorpora...
LF3311 LODEV-LF3311 Datasheet
947Kb / 24P
   Horizontal / Vertical Digital Image Filter
LF3310 LODEV-LF3310 Datasheet
287Kb / 21P
   Horizontal / Vertical Digital Image Filter
LF3321 LODEV-LF3321 Datasheet
1Mb / 28P
   Horizontal Digital Image Filter Improved Performance
LF3330 LODEV-LF3330 Datasheet
138Kb / 15P
   Vertical Digital Image Filter
logo
Nippon Precision Circui...
SM5835AF NPC-SM5835AF Datasheet
528Kb / 16P
   2D Digital Image Filter
logo
LOGIC Devices Incorpora...
LF3338 LODEV-LF3338 Datasheet
303Kb / 15P
   8-Bit Vertical Digital Image Filter
logo
ON Semiconductor
MT9M034 ONSEMI-MT9M034 Datasheet
1Mb / 56P
   Digital Image Sensor
Rev. G Pub. 4/15 EN
MT9M114 ONSEMI-MT9M114 Datasheet
1Mb / 66P
   Digital Image Sensor
Rev. J Pub. 4/15 EN
AS0260 ONSEMI-AS0260 Datasheet
1Mb / 83P
   Digital Image Sensor
Rev. G Pub. 5/15 EN
MT9P111 ONSEMI-MT9P111 Datasheet
1Mb / 67P
   Digital Image Sensor
Rev. G Pub. 5/15 EN
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


Scheda tecnica Scarica

Go To PDF Page


Link URL




Privacy Policy
ALLDATASHEETIT.COM
Lei ha avuto il aiuto da alldatasheet?  [ DONATE ] 

Di alldatasheet   |   Richest di pubblicita   |   contatti   |   Privacy Policy   |   scambio Link   |   Ricerca produttore
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