DS3884 - Pythagoras Processor
The PDSP16330 converts incoming Cartesian Data into the equivalent Polar Values.
The device accepts new 16 + 16 bit complex data every cycle, and delivers a 16 bit + 12 bit Polar equivalent after 24 clock cycles.The input data can be in 2s’ Complement or Sign Magnitude format selected via the FORM i
PDSP16330/A/B Pythagoras Processor Supersedes version in December 1993 Digital Video & DSP IC Handbook, HB3923-1 DS3884 - 1.3 September 1996 The PDSP16330 is a high speed digital CMOS IC that converts Cartesian data (Real and Imaginary) into Polar form (Magnitude and Phase), at rates up to 20MHz.
Cartesian 16+16 bit 2's complement or Sign-Magnitude data is converted into 16 bit Phase format.
The Magnitude output may be scaled in amplitude by powers of 2.
The Phase output represents a full 2 x π
DS3884 Features
* 25MHz Cartesian to Polar Conversion 16-Bit Cartesian Inputs 16-Bit Magnitude Output 12-Bit Phase Output 2’s Complement or Sign-Magnitude Input Formats Three-state Outputs and Independent Data Enables Simplify System Interfacing Magnitude Scaling Facility with Overflow Flag Less than 400 mW Power Dis
