4-Quadrant Arctan Function
Overview
Function φ = atan2(y,x) calculates the 4-quadrant inverse tangent in the range -Pi to Pi. Functionally equivalent to the atan2 function in 'C' and MATLAB®. Ideal for the measurement of complex phase in DSP applications. Accuracy to within 0.00008 radians.
Key Features
- Function φ = atan2(y,x)
- Inputs as 12-bit signed
- Output as 19-bit signed
- Output range between -Pi and Pi radians
- Accurate to within 0.00008 radians
- Small implementation size
- High-speed fully pipelined architecture
- 7 clock-cycle latency
Benefits
- Technology independent soft IP Core
- Suitable for FPGA, SoC and ASIC
- Supplied as human-readable source code
- One-time license fee with unlimited use
- Field tested and market proven
- Any custom modification on request
Block Diagram
Applications
- Fixed-point mathematics
- Digital Phase-locked Loops (PLLs)
- Phase measurements in DSP and digital comms
- Much cheaper than a CORDIC solution of similar spec.
Deliverables
- VHDL source-code (or Verilog on request)
- Simulation test bench
- Examples and scripts
- Full pdf datasheet
- One-to-one technical support
- One years warranty and maintenance
Technical Specifications
Foundry, Node
All