Finite Impulse Response IP

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Compare 19 Finite Impulse Response IP from 11 vendors (1 - 10)

Multi Channel FIR Filter
- Multi Channel FIR filter
- Selectable data and coefficient widths
- Selectable number of data channels
- Selectable number of filter taps
ASIP-2
- 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.
ASIP-1
- Platform to design Application Specific Instruction Set Processors (ASIPs).
- Ideal for supporting multi-standard systems.
- Supports a wide range of complex DSP functions .
- The ASIP1 supports the implementation of multiple DSP functions such as Kalman filtering suitable for IQ mismatch.and Finite and Infinite Impulse Response filtering with higher filter order.
Ultra-speed FIR Filter
- Systolic array for speed and scalability
- Configurable coefficients
- Configurable data width
- Configurable number of taps
Serial FIR Filter
- Serial Arithmetic for Reduced Resource Utilization
- Variable Number of Taps up to 64
- Data and Coefficients up to 32 Bits
- Output Size Consistent with Data Size
Parallel FIR Filter
- Variable number of taps up to 64
- Data and coefficients up to 32 bits
- Output size consistent with data size
- Zero-latency operation
FIR Filter Generator
- Direct Form 64-Tap FIR Filter: In the direct form FIR filter, the input samples are shifted into a shift register queue and each shift register is connected to a multiplier. The products from the multipliers are added together to get the FIR filter’s output sample. This example shows a 64-tap FIR filter using 16 sysDSP blocks and approximately 512 slices in the LatticeECP3 FPGA.
- 128-Tap Long Asymmetrical Filters Using Ladder Architecture: Using the ladder architecture, the FIR filter is split into sections each having the same coefficient set as if it was a single continuous filter chain. Instead of connecting the shifted data and the result outputs from the first section to the corresponding input of the next section, the ladder network connects a delayed version of the first stage input data to the second stage input data and sums a delayed version of the first stage sum output with the second stage sum output.
- 256-Tap Long Symmetrical Filters Using Ladder Architecture: The impulse response for most FIR filters is symmetric. This symmetry can generally be exploited to reduce the arithmetic requirements and produce area-efficient filter realizations. It is possible to use only half the multipliers for symmetric coefficients compared to that used for a similar filter with non-symmetric coefficients. An implementation for symmetric coefficients is shown in the figure below. The 256-tap long symmetrical filter example uses only 32 sysDSP slices, 2EBR and 3.5K slices.
- Polyphase Interpolator FIR Filter Designs: The polyphase interpolation filter implements the computationally efficient 1-to-P interpolation filter where P is an integer greater than 1. The example below shows a design with an interpolation by 16 that uses 128 taps. This requires 8 polyphase filters (sub-filters) with 16 coefficients each.
DAC Correction Filter
- Efficient, multiplier-free design
- Configurable input and output widths
- Multiple tap-length configurations
LMS Adaptive Channel Equalizer
- 17-tap T-spaced complex-arithmetic LMS signed-error Channel Equalizer
- Adaptation bandwidth control (mu, step size)
2D FIR Filter
- Single color plane
- Single-rate, interpolating, and decimating filter configurations
- Input frame size set at compile-time
- Static or dynamic zoom and pan