LF2250QC25 datasheet, PDF - EEWORLD Datasheet

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LF2250QC25: Description12 x 10-bit Matrix Multiplier; CategoryThe embedded processor and controller Microcontrollers and processors; File Size302KB，15 Pages; ManufacturerLOGIC Devices; Websitehttp://www.logicdevices.com/

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LF2250QC25 Overview

12 x 10-bit Matrix Multiplier

LF2250QC25 Parametric

Parameter Name	Attribute value
Is it lead-free?	Contains lead
Is it Rohs certified?	incompatible
Maker	LOGIC Devices
Parts packaging code	QFP
package instruction	QFP, QFP120,1.2SQ,32
Contacts	120
Reach Compliance Code	compli
ECCN code	3A991.A.2
Other features	3 X 12 BIT DATA AND 3 X 10 BIT COEFFICIENT INPUT BUSES; 2 X 12 BIT AND 3 X 4 BIT DATA OUT BUSES
boundary scan	NO
maximum clock frequency	40 MHz
External data bus width	12
JESD-30 code	S-PQFP-G120
JESD-609 code	e0
length	28 mm
low power mode	NO
Humidity sensitivity level	3
Number of terminals	120
Maximum operating temperature	70 °C
Minimum operating temperature
Output data bus width	12
Package body material	PLASTIC/EPOXY
encapsulated code	QFP
Encapsulate equivalent code	QFP120,1.2SQ,32
Package shape	SQUARE
Package form	FLATPACK
Peak Reflow Temperature (Celsius)	NOT SPECIFIED
power supply	5 V
Certification status	Not Qualified
Maximum seat height	4.1 mm
Maximum slew rate	160 mA
Maximum supply voltage	5.25 V
Minimum supply voltage	4.75 V
Nominal supply voltage	5 V
surface mount	YES
technology	CMOS
Temperature level	COMMERCIAL
Terminal surface	Tin/Lead (Sn/Pb)
Terminal form	GULL WING
Terminal pitch	0.8 mm
Terminal location	QUAD
Maximum time at peak reflow temperature	NOT SPECIFIED
width	28 mm
uPs/uCs/peripheral integrated circuit type	DSP PERIPHERAL, MULTIPLIER

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LF2250

DEVICES INCORPORATED

12 x 10-bit Matrix Multiplier

LF2250

DEVICES INCORPORATED

12 x 10-bit Matrix Multiplier

DESCRIPTION

The

LF2250

is a high-speed matrix

multiplier consisting of an array of

nine 12 x 10-bit multipliers. Internal

summing adders are also included to

provide the configurations needed to

implement matrix multiplications,

cascadable FIR filters, and pixel

convolvers.

The 3 x 3 matrix multiplier (triple dot

product) configuration of the LF2250

allows users to easily perform three-

dimensional perspective translations or

video format conversions at real-time

video rates. By using the LF2250 in

this configuration, conversions can be

made from the RGB (color component)

format to the YIQ (quadrature encoded

chrominance) or YUV (color differ-

ence) formats and vice versa (YIQ or

YUV to RGB).

In addition to color space conversions,

the LF2250 offers a range of selectable

configurations designed for filtering

applications. When configured as a

9-tap FIR filter, the LF2250 automatically

selects the necessary internal bus

structure and inserts the appropriate

data path delay elements. In addition,

a 16-bit cascade input port allows for

the creation of larger filters without a

reduction in throughput.

Real-time video image filtering using

the convolver modes of the LF2250 can

provide edge detection, texture

enhancement, and detail smoothing.

Both pixel convolver configurations,

3 x 3 and 4 x 2, deliver high-speed data

manipulation in a single chip solution.

By using the 16-bit cascade input port

to cascade two devices, cubic convolu-

tions (4 x 4-pixel) can be easily accom-

modated with no decrease in through-

put rates.

All inputs and outputs, as well as all

control lines, are registered on the

rising edge of clock. The LF2250

operates at clock rates up to 50 MHz

over the full commercial temperature

and supply voltage ranges.

FEATURES

50 MHz Data and Computation

Rate

Nine Multiplier Array with 12-bit

Data and 10-bit Coefficient Inputs

Separate 16-bit Cascade Input and

Output Ports

On-board Coefficient Storage

Four User-Selectable Filtering and

Transformation Functions:

• 3 x 3 Matrix Multiplier

• Cascadable 9-Tap FIR Filter

• Cascadable 3 x 3 Convolver

• Cascadable 4 x 2 Convolver

Replaces TRW/Raytheon/

Fairchild TMC2250

120-pin PQFP

LF2250 B

LOCK

IAGRAM

CLK

MODE

1-0

CWE

1-0

DATA

OUTPUTS

CASCADE

PORTS

NAME

{

11-0

11-8

7-4

3-0

11-0

{

11-0

11-8

7-4

CASIN

15-4

CASIN

3-0

DATA

INPUTS

{

11-0

CASOUT

3-0

CASOUT

15-4

3-0

11-0

9-0

COEFFICIENT

INPUTS

9-MULTIPLIER

ARRAY

Video Imaging Products

08/16/2000–LDS.2250-L

LF2250QC25 Related Products

	LF2250QC25	LF2250	LF2250QC20
Description	12 x 10-bit Matrix Multiplier	12 x 10-bit Matrix Multiplier	12 x 10-bit Matrix Multiplier
Is it lead-free?	Contains lead	-	Contains lead
Is it Rohs certified?	incompatible	-	incompatible
Maker	LOGIC Devices	-	LOGIC Devices
Parts packaging code	QFP	-	QFP
package instruction	QFP, QFP120,1.2SQ,32	-	QFP, QFP120,1.2SQ,32
Contacts	120	-	120
Reach Compliance Code	compli	-	compli
ECCN code	3A991.A.2	-	3A001.A.3
Other features	3 X 12 BIT DATA AND 3 X 10 BIT COEFFICIENT INPUT BUSES; 2 X 12 BIT AND 3 X 4 BIT DATA OUT BUSES	-	3 X 12 BIT DATA AND 3 X 10 BIT COEFFICIENT INPUT BUSES; 2 X 12 BIT AND 3 X 4 BIT DATA OUT BUSES
boundary scan	NO	-	NO
maximum clock frequency	40 MHz	-	50 MHz
External data bus width	12	-	12
JESD-30 code	S-PQFP-G120	-	S-PQFP-G120
JESD-609 code	e0	-	e0
length	28 mm	-	28 mm
low power mode	NO	-	NO
Humidity sensitivity level	3	-	3
Number of terminals	120	-	120
Maximum operating temperature	70 °C	-	70 °C
Output data bus width	12	-	12
Package body material	PLASTIC/EPOXY	-	PLASTIC/EPOXY
encapsulated code	QFP	-	QFP
Encapsulate equivalent code	QFP120,1.2SQ,32	-	QFP120,1.2SQ,32
Package shape	SQUARE	-	SQUARE
Package form	FLATPACK	-	FLATPACK
Peak Reflow Temperature (Celsius)	NOT SPECIFIED	-	NOT SPECIFIED
power supply	5 V	-	5 V
Certification status	Not Qualified	-	Not Qualified
Maximum seat height	4.1 mm	-	4.1 mm
Maximum slew rate	160 mA	-	160 mA
Maximum supply voltage	5.25 V	-	5.25 V
Minimum supply voltage	4.75 V	-	4.75 V
Nominal supply voltage	5 V	-	5 V
surface mount	YES	-	YES
technology	CMOS	-	CMOS
Temperature level	COMMERCIAL	-	COMMERCIAL
Terminal surface	Tin/Lead (Sn/Pb)	-	Tin/Lead (Sn/Pb)
Terminal form	GULL WING	-	GULL WING
Terminal pitch	0.8 mm	-	0.8 mm
Terminal location	QUAD	-	QUAD
Maximum time at peak reflow temperature	NOT SPECIFIED	-	NOT SPECIFIED
width	28 mm	-	28 mm
uPs/uCs/peripheral integrated circuit type	DSP PERIPHERAL, MULTIPLIER	-	DSP PERIPHERAL, MULTIPLIER

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