LF3310QC15 LODEV [LOGIC Devices Incorporated], LF3310QC15 Datasheet

no-image

LF3310QC15

Manufacturer Part Number
LF3310QC15
Description
Horizontal / Vertical Digital Image Filter
Manufacturer
LODEV [LOGIC Devices Incorporated]
Datasheet
DEVICES INCORPORATED
FEATURES
LF3310 B
DEVICES INCORPORATED
83 MHz Data Rate
12-bit Data and Coefficients
On-board Memory for 256 Horizontal
and Vertical Coefficient Sets
LF Interface
Coefficient Sets to be Updated
Within Vertical Blanking
Selectable 12-bit Data Output with
User-Defined Rounding and
Limiting
Seven 3K x 12-bit, Programmable
Two-Mode Line Buffers
16 Horizontal Filter Taps
8 Vertical Filter Taps
Two Operating Modes: Dimension-
ally Separate and Orthogonal
Supports Interleaved Data Streams
Horizontal Filter Supports Decima-
tion up to 16:1 for Increasing
Number of Filter Taps
3.3 Volt Power Supply
5 Volt Tolerant I/O
144 Lead PQFP
LOCK
TM
Allows All 512
DIN
D
11-0
IAGRAM
12
3K LINE BUFFER
3K LINE BUFFER
3K LINE BUFFER
3K LINE BUFFER
3K LINE BUFFER
3K LINE BUFFER
3K LINE BUFFER
The LF3310 is a two-dimensional digital
image filter capable of filtering data at
real-time video rates. The device
contains both a horizontal and a
vertical filter which may be cascaded or
used concurrently for two-dimensional
filtering. The input, coefficient, and
output data are all 12-bits and in two’s
complement format.
The horizontal filter is designed to take
advantage of symmetric coefficient sets.
When symmetric coefficient sets are
used, the horizontal filter can be
configured as a 16-tap FIR filter. When
asymmetric coefficient sets are used, it
can be configured as an 8-tap FIR filter.
The vertical filter is an 8-tap FIR filter
with all required line buffers contained
on-chip. The line buffers can store
video lines with lengths from 4 to 3076
pixels.
Horizontal filter Interleave/Decima-
tion Registers (I/D Registers) and the
vertical filter line buffers allow
interleaved data to be fed directly into
DESCRIPTION
Horizontal / Vertical Digital Image Filter
1
Horizontal / Vertical Digital Image Filter
256 COEFFICIENT SET STORAGE
16-TAP HORIZONTAL FILTER
DOUT
the device and filtered without
separating the data into individual
data streams. The horizontal filter
can handle a maximum of sixteen
data sets interleaved together. The
vertical filter can handle interleaved
video lines which contain 3076 or less
data values. The I/D Registers and
horizontal accumulator facilitate
using decimation to increase the
number of filter taps in the horizontal
filter. Decimation of up to 16:1 is
supported.
The device has on-chip storage for 256
horizontal coefficient sets and 256
vertical coefficient sets. Each filter’s
coefficients are loaded independently
of each other allowing one filter’s
coefficients to be updated without
affecting the other filter’s coefficients.
In addition, a horizontal or vertical
coefficient set can be updated inde-
pendently from the other coefficient
sets in the same filter.
12
Video Imaging Products
11-0
LF3310
11/08/2001-LDS.3310-H
LF3310

Related parts for LF3310QC15

LF3310QC15 Summary of contents

Page 1

DEVICES INCORPORATED DEVICES INCORPORATED FEATURES 83 MHz Data Rate 12-bit Data and Coefficients On-board Memory for 256 Horizontal and Vertical Coefficient Sets LF Interface TM Allows All 512 Coefficient Sets to be Updated Within Vertical Blanking Selectable 12-bit Data Output ...

Page 2

DEVICES INCORPORATED F 1. LF3310 F IGURE UNCTIONAL DATA REVERSAL 1-16 1-16 1-16 1-16 1-16 1-16 1-16 1-16 1-16 1-16 1-16 1-16 1-16 1-16 1-16 Horizontal / Vertical Digital Image Filter B D LOCK IAGRAM 2 LF3310 ...

Page 3

DEVICES INCORPORATED SIGNAL DEFINITIONS Power V and GND CC +3.3 V power supply. All pins must be connected. Clock CLK — Master Clock The rising edge of CLK strobes all enabled registers. Inputs DIN — Data Input 11-0 DIN is ...

Page 4

DEVICES INCORPORATED HCEN — Horizontal Coefficient Address Enable When HCEN is LOW, data on HCA is latched into the Horizontal Coeffi- cient Address Register on the rising edge of CLK. When HCEN is HIGH, data on HCA is not latched ...

Page 5

DEVICES INCORPORATED HRSL — Horizontal Round/Select/ 3-0 Limit Control HRSL determines which of the 3-0 sixteen user-programmable Round/ Select/Limit registers (RSL registers) are used in the horizontal Round/ Select/Limit circuitry (RSL circuitry). A value HRSL selects 3-0 ...

Page 6

DEVICES INCORPORATED IGURE RTHOGONAL ODE 12 DATA DIN 11-0 DELAY LINE BUFFER LINE BUFFER LINE BUFFER LINE BUFFER LINE BUFFER LINE BUFFER LINE BUFFER F 7. 3-3, 5-5, 7-7 O IGURE AND ...

Page 7

DEVICES INCORPORATED IGURE YMMETRIC OEFFICIENT Even-Tap, Even-Symmetric Coefficient Set IGURE EGISTER ATA ALU ALU COEF 7 COEF 6 EVEN-TAP ...

Page 8

DEVICES INCORPORATED F 10 IGURE ATA EVERSAL TXFR LIFO A LIFO B When the filter is configured for an odd number of taps, the data which will appear at the output of the last I/D Register in the ...

Page 9

DEVICES INCORPORATED ABLE ONFIGURATION BITS FUNCTION 0 ALU Mode 1 Pass A 2 Pass B 11-3 Reserved ABLE ONFIGURATION BITS FUNCTION 0 Odd-Tap Interleave Mode 4-1 I/D Register Length 5 Horizontal Tap ...

Page 10

DEVICES INCORPORATED changed every clock cycle. This is useful when filtering interleaved data. When loading limit values into the device, the upper limit must be greater than the lower limit. Limit register loading is discussed in the LF TM Interface ...

Page 11

DEVICES INCORPORATED T 8. HCF/VCF D 11-9 ABLE ECODE DESCRIPTION Coefficient Banks Configuration Registers Horizontal Select Registers Vertical Select Registers Horizontal Round ...

Page 12

DEVICES INCORPORATED F 12 IGURE OEFFICIENT ANK COEFFICIENT SET 1 CLK HLD/VLD HCF/VCF ADDR COEF 11-0 1 W1: Coefficient Set 1 written to coefficient banks during this clock cycle. W2: Coefficient Set 2 written to coefficient banks during ...

Page 13

DEVICES INCORPORATED HLD goes LOW, the Horizontal LF TM Interface is enabled for data input. The first value fed into the interface on HCF is an address which 11-0 determines what the interface is going to load. The three most ...

Page 14

DEVICES INCORPORATED shows an example of loading data into a Configuration Register. Data value 003H is written into Configura- tion Register 4. Table 17 shows an example of loading data into a round register. Data value 7683F4A2H is F 16. ...

Page 15

DEVICES INCORPORATED It takes 9S clock cycles to load S coefficient sets into the device. Therefore, it takes 2304 clock cycles to load all 256 coefficient sets. Assuming an 83 MHz clock rate, all 256 coeffi- cient sets can be ...

Page 16

DEVICES INCORPORATED done by setting HLD HIGH on the clock cycle after the clock cycle which latches the last data value important that the LF Interface TM remain disabled when not loading data into it. The horizontal coefficient ...

Page 17

DEVICES INCORPORATED M R Above which useful life may be impaired (Notes AXIMUM ATINGS Storage temperature ........................................................................................................... –65°C to +150°C Operating ambient temperature ........................................................................................... –55°C to +125°C V supply voltage with respect to ground ............................................................................ –0.5 ...

Page 18

DEVICES INCORPORATED SWITCHING CHARACTERISTICS OMMERCIAL PERATING ANGE Symbol Parameter t Cycle Time CYC t Clock Pulse Width Low PWL t Clock Pulse Width High PWH t Input Setup Time S0 t Input Setup Time (xCEN, xRSL)* S1 ...

Page 19

DEVICES INCORPORATED OMMERCIAL PERATING ANGE Symbol Parameter t Coefficient Input Setup Time CFS t Coefficient Input Hold Time CFH t Load Setup Time LS t Load Hold Time LH t PAUSE Setup Time PS t PAUSE Hold ...

Page 20

DEVICES INCORPORATED NOTES 1. Maximum Ratings indicate stress specifications only. Functional oper- ation of these products at values beyond those indicated in the Operating Condi- tions table is not implied. Exposure to maximum rating conditions for ex- tended periods may ...

Page 21

... VCEN 32 VSHEN 33 VCC 34 VCC 35 VCC 36 Plastic Quad Flatpack (Q5) Speed 0°C to +70°C — C OMMERCIAL 15 ns LF3310QC15 12 ns LF3310QC12 –55°C to +125°C — C OMMERCIAL –55°C to +125°C — MIL-STD-883 C Horizontal / Vertical Digital Image Filter Top View S CREENING S CREENING OMPLIANT 21 LF3310 ...

Related keywords