CS2412 Amphion, CS2412 Datasheet

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... Pipelined FFT/IFFT Preliminary Datasheet The CS2412 is an online programmable, pipelined architecture 1024-point FFT/IFFT core capable of processing continuous data streams with high data throughput rate Msamples/Sec. This highly integrated application specific silicon core is the pipelined version of CS2411 and is available in both ASIC and FPGA versions that have been handcrafted by Amphion for maximum performance while minimizing power consumption and silicon area ...

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... N-1 clock cycles in the natural order. 2 AND PIN DESCRIPTION P -point discrete Table 1 describes input and output ports (shown graphically in Figure 2) of the CS2412 1024-point FFT/IFFT core. Unless otherwise stated, all signals are active high and bit(0) is the least significant bit. CLK [1] NotRST ...

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... However, the scaling down control is applied on a block-by-block basis. The core detects possible overflow during computation and saturates overflow data accordingly. In order to minimize the device size, CS2412 uses clock internally. For example, the input data is clocked in using the [3] data clock while the core operates on the 2 x clock ...

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... CS2412 1024-Point Pipelined FFT/IFFT FUNCTIONAL OPERATION The core is capable of processing continuous data stream. Loading the input data is performed under the control of signal XBS. Signal XBS is asserted when the output signal XBIP is de-asserted. It indicates the first data of the 1024-point data block and the data is clocked in on the clock rising edge. ...

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... CS2412 detects overflow at each computation stage and uses the following procedure to saturate output overflow samples >= 32768 32767 <= -32768 -32767; ...

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... LATENCY The computation latency of CS2412 is 2040 clock cycles. This includes all the delay for data reshuffle, computation pipeline cuts and re-order of the transform result. The latency will be consistent with all the operating modes, regardless of the settings of all the control signals ...

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... AVAILABILITY AND IMPLEMENTATION INFORMATION Amphion offers the CS2412 core in ASIC and programmable logic versions. Consult your local Amphion representative for product specific performance information, current availability of individual products, and lead times on ASIC or different programmable logic core porting. The implementation information provided in Table 5 has been obtained for the algorithm implemented as a stand-alone design on a EP20K300EFC672-2X device ...

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... CS2412 1024-Point Pipelined FFT/IFFT ABOUT AMPHION Amphion (formerly Integrated Silicon Systems) is the leading supplier of speech coding, video/ image processing and channel coding application specific silicon cores for system-on-a-chip (SoC) solutions in the broadband, wireless, and mulitmedia markets. Web: www.amphion.com Email: info@amphion.com ...