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 field to eliminate phase ambiguities.

Polyimide is used as an inter-layer dielectric and as

glassivation.

The PDSP16330 is offered in three speed grades: a

basic 10MHz part (PDSP16330), a 20MHz version

(PDSP16330A) and a 25MHz version (PDSP16330). A MIL-

STD-883 version is also detailed in a separate datasheet.

Fig.1 Pin connections - bottom view (PGA)

AC84

1

2

3

4

5

6

7

8

9

10

11

L

K

J

H

G

F

E

D

C

B

A

PIN 1A INDEX MARK

ON TOP SURFACE

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 Dissipation at 10MHz

84-pin PGA or 100 pin QFP Package or 84 LCC

APPLICATIONS

Digital Signal Processing

Digital Radio

Radar Processing

Sonar Processing

Robotics

ASSOCIATED PPODUCTS

PDSP16112

16 X 12 Complex Multiplier

PDSP16116

16 X 16 Complex Multiplier

PDSP16318

Complex Accumulator

PDSP16350

I/Q Splitter and NCO

PDSP16510A

Stand Alone FFT Processor

Fig.2 Pin connections - QFP Package

GG100/R