Datasheet > TMC2246AH6C

TMC2246AH6C

更新时间： 2024-11-21 07:04:39

品牌	Logo	应用领域
CADEKA		过滤器外围集成电路输入元件 LTE 时钟
页数	文件大小	规格书
18页	371K
描述
Image Filter 11 x 10 bit, 60 MHz

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TMC2246AH6C 数据手册

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TMC2246A

Image Filter

11 x 10 bit, 60 MHz

Features

Applications

• 60 MHz computation rate

• 60 MHz data and coefﬁcient input

• Four 11 x 10-bit multipliers

• Individual data and coefﬁcient inputs

• 25-Bit accumulator

• Fast pixel interpolation

• Fast image manipulation

• Image mixing and keying

• High-performance FIR ﬁlters

• Adaptive digital ﬁlters

• Fractional and integer two’s complement data formats

• Input and output data latches with user-conﬁgurable

enables

• One- and two-dimensional image processing

• 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.

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.

Logic Symbol

TMC2246A

Image Filter

9-0

ENB1-4

ENSEL

ACC

10-0

9-0

FSEL

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.

10-0

15-0

9-0

OCEN

OEN

CLK

10-0

9-0

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 CADEKA’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).

10-0

REV. 1.0.3 9/11/00

12 3 4 5 6 7...18

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与TMC2246AH6C相关器件

型号	品牌	获取价格	描述	数据表
TMC2246AH6C1	FAIRCHILD	获取价格	Image Filter 11 x 10 bit, 60 MHz
TMC2246AH6C1	CADEKA	获取价格	Image Filter 11 x 10 bit, 60 MHz
TMC2246AH6C2	CADEKA	获取价格	Image Filter 11 x 10 bit, 60 MHz
TMC2246AH6C2	FAIRCHILD	获取价格	Image Filter 11 x 10 bit, 60 MHz
TMC2246AKEC	FAIRCHILD	获取价格	Image Filter 11 x 10 bit, 60 MHz
TMC2246AKEC	CADEKA	获取价格	Image Filter 11 x 10 bit, 60 MHz
TMC2246AKEC1	FAIRCHILD	获取价格	Image Filter 11 x 10 bit, 60 MHz
TMC2246AKEC1	CADEKA	获取价格	Image Filter 11 x 10 bit, 60 MHz
TMC2246AKEC2	FAIRCHILD	获取价格	Image Filter 11 x 10 bit, 60 MHz
TMC2246AKEC2	CADEKA	获取价格	Image Filter 11 x 10 bit, 60 MHz

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