AMAC

ASIC- und Mikrosensoranwendung Chemnitz

Interpolation Circuit GC-IP200

Characteristics

The GC-IP200 interpolation IC has been designed for connection to incremental position and angular measurement systems with sineshaped output signals with a 90° phase shift. It can be operated at a large number of transducer systems working according to the most varied measuring principles. With a maximum interpolation rate of 200 the IC is capable to slit the input signal period into up to 200 segments. An internal counter provides a counting value which can be output via a serial or a parallel interface. Furthermore there is the possibility to output the data as a pair of square waves for processing externally. The GC-IP200 is ideal for single chip interpolation systems, micro-computer based measuring devices, as well as multi channel systems. Proprietary automatic gain and offset regulation, as well as the possibility of an analogue phase correction ensure a high measuring precision under industrial conditions. Two integrated two-level measuring value trigger and the additional parallel high speed output make the IC suitable for use in real-time applications.

Technical Data




Analogue Part









Analogue input


3 differential channels (sine, cosine, reference)
Voltage input 1VPP (differential)
Single-ended input 2,4VPP
Maximum input frequency 400kHz







AD-Converter


Internal converter max. 1,25MS/s







Signal correction


AMAC-specific gain- and offset regulation
Phase correction static via external potentiometer







Digital Part









Interpolation rate


20, 25, 40, 50, 80, 100, 160, 200







Output signals


28-Bit counting value
90° phase offset square wave signals
Error signal







Possibilities of configuration


Configuration pins, serial interface (SPI)







Serial interface


For configuration and measuring value output
16 Bit synchronous / asynchronous mode
Not required for trivial systems







Parallel output


For measuring value output
16-Bit wide
Up to 40MBit/s







Miscellaneous









Glitch filter


Filter for suppressing the edge distance noise at low input frequencies







Interval time


Programmable for adjusting the IC to slower counters







Trigger


Two level edge controlled measuring trigger







Error output


Programmable sensor failure response







Package









TQFP64


10mm x 10mm x 1,4mm




* A complete and more detailed description of the technical specifications is available at the data sheet at www.amac-chemnitz.de

Downloads


Info Sheet

Data Sheet






Ordering Information

Product Type

Description

Item Number

GC-IP200

Interpolation IC GC-IP200, TQFP 64

PR-00026-50