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LF3347 Datasheet

Part Name
Description
MFG CO.
LF3347
LODEV
LOGIC Devices Incorporated LODEV
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DESCRIPTION
The LF3347 consists of an array of four 12 x 12-bit registered multipliers followed by two summers and a 32-bit accumulator. The LF3347 provides four 256 x 12-bit coefficient banks which are capable of storing 256 different sets of filter coefficients for the multiplier array. All multiplier data inputs are user accessible and can be updated every clock cycle with two’s complement data. The pipelined architecture has fully registered input and output ports and an asynchronous three-state output enable control to simplify the design of complex systems.

FEATURES
❑ 83 MHz Data Input and Computation Rate
❑ Four 12 x 12-bit Multipliers with Individual Data and Coefficient Inputs
❑ Four 256 x 12-bit Coefficient Banks
❑ 32-bit Accumulator
❑ Selectable 16-bit Data Output with User-Defined Rounding and Limiting
❑ Two’s Complement Operands
❑ 3.3 Volt Power Supply
❑ 5 Volt Tolerant I/O
❑ 120-pin PQFP

 

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