Datasheet > TMC2249AH6C1

TMC2249AH6C1

更新时间： 2024-01-04 12:28:24

品牌	Logo	应用领域
飞兆/仙童 - FAIRCHILD		外围集成电路时钟
页数	文件大小	规格书
18页	140K
描述
Digital Mixer 12 x 12 Bit, 60 MHz

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TMC2249AH6C1 数据手册

www.fairchildsemi.com

TMC2 2 4 9 A

Dig it a l Mix e r

1 2 x 1 2 Bit , 6 0 MHz

Features

Applications

• 60 MHz input and computation rate

• Two 12-bit multipliers

• Video switching

• Image mixing

• Separate data and coefﬁcient inputs

• Independent, user-selectable pipeline delays of 1 to 16

clocks on all input ports

• Digital signal modulation

• Complex frequency synthesis

• Digital ﬁltering

• Separate 16-bit input port allows cascading or addition of

a constant

• Complex arithmetic functions

• User-selectable rounded output

• Internal 1/2 LSB rounding of products

• Fully registered, pipelined architecture

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

Description

The TMC2249A is a high-speed digital arithmetic circuit

consisting of two 12-bit multipliers, an adder and a cascade-

able accumulator. All four multiplier inputs are simulta-

neously accessible to the user, and each includes a user-

programmable pipeline delay of up to 16 clocks in length.

The 24-bit adder/subtractor is followed by an accumulator

and 16-bit input port which allows the user to cascade multi-

ple TMC2249As. A new 16-bit accumulated output is avail-

able every clock, up to the maximum rate of 60 MHz. All

inputs and outputs are registered except the three-state out-

put enable, and all are TTL compatible.

The TMC2249A utilizes a pipelined, bus-oriented structure

offering signiﬁcant ﬂexibility. Input register clock enables

and programmable input data pipeline delays on each port

offer an adaptable input structure for high-speed digital

systems. Following the multipliers, the user may perform

addition or subtraction of either product, arithmetic rounding

to 16 bits, and accumulation and summation of products with a

cascading input. The output port allows access to all 24 bits of

the internal accumulator by switching between overlapping

least and most-signiﬁcant 16-bit words, and a three-state out-

put enable simpliﬁes connection to an external system bus.

The TMC2249A has numerous applications in digital pro-

cessing algorithms, from executing simple image mixing and

switching, to performing complex arithmetic functions and

complex waveform synthesis. FIR ﬁlters, digital quadrature

mixers and modulators, and vector arithmetic functions may

also be implemented with this device.

Logic Symbol

CLK

TMC2249A

Digital Mixer

NEG1

NEG2

SWAP

Delay

1-16

11-0

ADEL

Fabricated in a submicron CMOS process, the TMC2249A

operates at guaranteed clock rates of up to 60 MHz over the

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

function-compatible with Fairchild’s TMC2249, while pro-

viding higher speed operation and lower power dissipation. It

is available in a 120 pin Ceramic Pin Grid Array (CPGA),

120 pin Plastic Pin Grid Array (PPGA), 120 lead MQFP to

PPGA package (MPGA), and a 120 lead Metric Quad Flat-

Pack (MQFP).

3-0

ENA

ACC

Delay

1-16

11-0

BDEL

3-0

ENB

15-0

Delay

1-16

11-0

CDEL

3-0

ENC

Delay

1-16

11-0

RND

DDEL

3-0

END

CASEN

CAB

15-0

REV. 1.0.2 7/6/00

12 3 4 5 6 7...18

中文翻译

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与TMC2249AH6C1相关器件

型号	品牌	获取价格	描述	数据表
TMC2249AH6C2	FAIRCHILD	获取价格	Digital Mixer 12 x 12 Bit, 60 MHz
TMC2249AKEC	FAIRCHILD	获取价格	Digital Mixer 12 x 12 Bit, 60 MHz
TMC2249AKEC1	FAIRCHILD	获取价格	Digital Mixer 12 x 12 Bit, 60 MHz
TMC2249AKEC2	FAIRCHILD	获取价格	Digital Mixer 12 x 12 Bit, 60 MHz
TMC2249L5V	RAYTHEON	获取价格	Mixer, 12-Bit, CMOS, CQFP132,
TMC2249L5V1	RAYTHEON	获取价格	Mixer, 12-Bit, CMOS, CQFP132,
TMC2249L5V1	FAIRCHILD	获取价格	Mixer, CMOS, CQFP132
TMC2250A	FAIRCHILD	获取价格	Matrix Multiplier 12 x 10 bit, 50 MHz
TMC2250A	CADEKA	获取价格	Matrix Multiplier 12 x 10 bit, 50 MHz
TMC2250AG1C	FAIRCHILD	获取价格	Matrix Multiplier 12 x 10 bit, 50 MHz

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