FFT IP
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MixedRadix FFT IP Core
- The MixedRadix FFT IP Core uses a modular combination of radix2, 3, 5, and 7 Fast Fourier Transform (FFT) pipelined engines to provide discrete transforms on data frames or continuous data streams, with sample rate up to the maximum clock frequency.
- The engines are arranged to provide the most beneficial resource usage and data ordering for the system.
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UltraLong FFT
- The UltraLong FFT IP Core uses an efficient Fast Fourier Transform (FFT) algorithm to provide multimillion-point discrete transforms on data frames or continuous data streams.
- This structure utilizes state-of-the-art off-chip memory technology and N1- and N2-length pipelined radix-2 FFT engines with an additional rotation stage to perform N=N1xN2 transform lengths, from 1K to 64M points.
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Pipelined Floating Point FFT IP Core
- Any radix-2 length
- Variable length option for runtime per-transform length select
- Clock rates to 400MHz in Virtex-5
- Fixed or floating point math
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Fast Fourier Transform IP Core
- Supports forward and inverse complex FFT
- Supports transform length (N) from 23 to 2¹⁶
- Supports scaled or unscaled IFFT output
- Implemented as pipelined streaming IO architecture
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32-512 Point Streaming FFT Core
- Supports 32/64/128/256/512-point complex FFT and IFFT and can switch dynamically
- Inputs and outputs data in the natural order
- Throughput of 1 sample (In-phase I + quadrature Q) per 4 clocks; no-gap processing of the input data
- Parameterized bit width.
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128-Point FFT/IFFT IP Core
- The FFT4T core implements a 128 point complex FFT and IFFT over 12 data streams in hardware. It runs at the clock frequency four times higher than the insput sampling frequency.
- FFT4T core is a specialized FFT/IFFT processor intended for a situation where an RF signal is recieved over multiple channels in parallel and its filtering is to be performed in the frequency domain. The core fits nicely into, for example, a multichannel GPS system.
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ASIP-2 Programmable Filter Engine
- Platform to design Application Specific Instruction Set Processors (ASIPs).
- Ideal for supporting multi-standard systems.
- Supports a wide range of complex DSP functions
- The ASIP2 performs Fast Fourier Transform (FFT) to convert time domain signals to frequency domain signals for further processing. It supports FFT sizes from 4 to 8K.
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General-purpose FFT core
- The FFT is factored into Radix-4 Butterfly operations. When an odd power of two is required, a small radix-2 “follower” stage performs the final iteration. The radix-2 stage does not require a full complex rotator so its cost is minimal.
- The Radix-4 Engine fetches one complex word of data each clock cycle. Four interleaved data words are collected then applied to the t0-t3 inputs. On successive clock cycles the engine calculates the four frequency domain outputs f0-f3. These are then stored back into the Working Buffer.
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Radar processing IP suite for Advanced Driver Assistance Systems
- The eSi-ADAS™ is a suite of radar accelerator IP including a complete Radar co-processor engine, they enhance the overall performance and capabilities of radar systems for automotive, drone and UAV applications that require fast and responsive situational awareness.
- The IP has been licensed to some of the leading automotive Tier 1 and Tier 2 suppliers and is in production vehicles.
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Power-On Reset - Flexible Threshold (1-1.3V), Ultra Low Current (100nA) - SilTerra 0.16µm CL160G
- This macro-cell is an ultra low consumption Power-On Reset (POR) core designed for SilTerra 0.16μm CL160G CMOS technology.
- The threshold sensing voltage can be configured from 1V to 1.3V (default is 1.15V). A hysteresis of 120mV is added to avoid false reset glitches in noisy supplies.
