Vendor: Zipcores Electronic Systems Engineering S.L. Category: Arithmetic Units

Arctan Function

ATAN_X calculates the inverse tangent of a fraction.

Overview

ATAN_X calculates the inverse tangent of a fraction. It has a fully pipelined architecture and uses fixed-point mathematics throughout. Input values are accepted as 16-bit unsigned fractions in the range 0 to 1. Output values are 16-bit unsigned fractions in the range 0 to π/4. Both input and output values are in [16 16] format with 0 integer bits and 16 fraction bits. As an example the input value 0x4000 would signify the fraction 0.5.

Key features

  • Synthesizable, technology independent VHDL Core
  • Function y = atan(x) 
  • Input range 0 ≤ x ≤ 1
  • Output range 0 ≤ y ≤ π/4
  • Based on a quadratic polynomial with dynamic coefficients
  • Input values as 16-bit unsigned fractions
  • Output values as 16-bit unsigned fractions in radians
  • Accurate to within 0.00004 radians
  • High-speed 250MHz+ operation1
  • Fully pipelined architecture
  • 3 clock-cycle latency

Block Diagram

Applications

  • Fixed-point mathematics
  • Phase measurements in digital communications
  • Alternative to using a 64k x 16-bit LUT (128 kbytes)

Files

Note: some files may require an NDA depending on provider policy.

Specifications

Identity

Part Number
ATAN_X
Vendor
Zipcores Electronic Systems Engineering S.L.
Type
Silicon IP

Provider

Zipcores Electronic Systems Engineering S.L.
HQ: Spain
Zipcores design and sell IP Cores for implementation on all semiconductor devices. Founded in 2008, we are a team of experienced Engineers with a broad knowledge of digital hardware design spanning various fields. Our specific areas of expertise include Digital Video, DSP, Digital Modulation and high-speed interfaces. We offer a wide range of IP Cores for a variety of applications from basic building blocks to more complex systems. Our cores are supplied as clear readable VHDL or Verilog source-code and are synthesizable across multiple technologies - whether it be FPGA, ASIC or SoC.

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Frequently asked questions about Arithmetic Unit IP cores

What is Arctan Function?

Arctan Function is a Arithmetic Units IP core from Zipcores Electronic Systems Engineering S.L. listed on Semi IP Hub.

How should engineers evaluate this Arithmetic Units?

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