TMC2246 Fairchild Semiconductor, TMC2246 Datasheet

TMC2246

Manufacturer Part Number

TMC2246

Description

Image Filter 11 x 10 bit/ 60 MHz

Manufacturer

Fairchild Semiconductor

Datasheet

1.TMC2246.pdf (18 pages)

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

TMC2246AH5C

Manufacturer:

Quantity:

138

Company:

BOSTOCK HK LIMITED

Part Number:

TMC2246AH5C

Manufacturer:

FAIR

Quantity:

1 000

Company:

Meier Automation Equipment Co., Limited

Part Number:

TMC2246AH5C

Manufacturer:

FAIRCHILD/仙童

Quantity:

20 000

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

TMC2246AKEC

Manufacturer:

TOSH

Quantity:

2 660

Company:

BOSTOCK HK LIMITED

Part Number:

TMC2246AKEC

Manufacturer:

RAYTHEON

Quantity:

1 000

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

TMC2246H5C

Manufacturer:

FAIRCHILD

Quantity:

Company:

BOSTOCK HK LIMITED

Part Number:

TMC2246H5C

Manufacturer:

SAMPLE

Quantity:

1 000

Company:

Meier Automation Equipment Co., Limited

Part Number:

TMC2246H5C

Manufacturer:

SAMPLE

Quantity:

20 000

Current page: 1 of 18
Download datasheet (267Kb)

Features

• 60 MHz computation rate

• 60 MHz data and coefﬁcient input

• Four 11 x 10-bit multipliers

• Individual data and coefﬁcient inputs

• 25-Bit accumulator

• Fractional and integer two’s complement data formats

• Input and output data latches with user-conﬁgurable

• Selectable 16-bit rounded output

• Internal 1/2 LSB rounding

• Available in 120-pin CPGA, PPGA, MPGA, or MQFP

Description

The TMC2246A is a video-speed convolutional array com-

posed of four 11 x 10 bit registered multipliers followed by a

summer and an accumulator. All eight multiplier inputs are

accessible to the user and may be updated every clock cycle

with integer or fractional two’s complement data. A pipe-

lined architecture, fully registered input and output ports,

and asynchronous three-state output enable control simplify

the design of complex systems.

TMC2246A

Image Filter

11 x 10 bit, 60 MHz

Logic Symbol

enables

10-0

9-0

TMC2246A

Image Filter

ENB1-4

ENSEL

ACC

FSEL

OCEN

OEN

CLK

15-0

Applications

• Fast pixel interpolation

• Fast image manipulation

• Image mixing and keying

• High-performance FIR ﬁlters

• Adaptive digital ﬁlters

• One- and two-dimensional image processing

The data or coefﬁcient inputs to the multipliers may be held

over multiple clock cycles, providing storage for mixing and

ﬁltering coefﬁcients. The 25-bit internal accumulator path

allows two bits of cumulative word growth and may be inter-

nally rounded to 16 bits. Output data are updated every clock

cycle, or may be held under user control. All data inputs, out-

puts, and controls are TTL compatible and (except for the

three-state output enable) are registered on the rising edge of

CLK.

The TMC2246A is uniquely suited to performing pixel inter-

polation in image manipulation and ﬁltering applications. As

a companion to the Fairchild Semiconductor TMC2301 and

TMC2302 Image Manipulation Sequencers, the TMC2246A

can execute a bilinear interpolation of an image (4-pixel ker-

nels) at real-time video rates. Larger kernels or other, more

complex, functions can be realized with no loss in performance

by utilizing multiple devices.

With unrestricted access to all data and coefﬁcient input

ports, the TMC2246A offers considerable ﬂexibility in appli-

cations performing digital ﬁltering, adaptive FIR ﬁlters, mix-

ers, and other similar systems requiring high-speed

processing.

Fabricated in a submicron CMOS process, the TMC2246A

operates at a guaranteed clock rate of 60 MHz over the full

temperature and supply voltage ranges. It is pin- and func-

tion-compatible with Fairchild’s TMC2246, while providing

higher speed operation and lower power dissipation. It is

available in a 120 pin Plastic Pin Grid Array (PPGA), 120

pin Ceramic Pin Grid Array (CPGA), 120 lead MQFP to

PPGA (MPGA), and a 120 lead Metric Quad FlatPack

(MQFP).

www.fairchildsemi.com

REV. 1.0.3 9/11/00

Related parts for TMC2246

Related keywords

TMC2246 datasheet
TMC2246 data sheet
TMC2246 pdf datasheet
TMC2246 component
TMC2246 part
TMC2246 distributor
TMC2246 RoHS
TMC2246 datasheet download