AMAC

ASIC- und Mikrosensoranwendung Chemnitz

 

 

Interpolation Circuit GC-IP1000B

Characteristics

The GC-IP1000B interpolation IC has been designed for connection to incremental position and angular measurement systems with sine-shaped 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 1000 the IC is capable to slit the input signal period into up to 1000 segments. An internal counter provides a counting value which can be output via a serial interface. Furthermore there is the possibility to output the data as a pair of square waves for processing externally. The GC-IP1000B 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. An integrated measuring value trigger enables the use in real-time applications.

Technical Data




Analogue Part









Analogue input:


3 differential channels (sine, cosine, reference)
Voltage input 1VPP (differential)
4 input voltage ranges  (100mVPP, 120mVPP, 145mVPP, 1VPP) (differential)
Single-ended input 2VPP
Maximum input frequency 100kHz







AD-Converter:


Internal  converter max. 340kS/s







Signal correction:


Patented gain- and offset regulation
Phase correction static via internal digital potentiometer







Digital Part









Interpolation rate:


100, 125, 200, 250, 400, 500, 800,1000







Output signals:


28-Bit counting value
90° phase offset square wave signals resp. up / down counter pulses
Error signal







Possibilities of  configuration:


Configuration pins, EEPROM, serial interface (SPI)







Serial interface:


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







EEPROM:


8 configuration banks
For regulator settings (gain, offset, phase)
For any type of user data in conjunction with SPI
Not required for trivial systems







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:


Edge controlled measuring trigger







Error output:


Programmable sensor failure response







Package









TQFP64:


10mm x 10mm x 1,4mm




Download


Infosheet

Datasheet










Ordering Information

Product Type

Description

Item No.

GC-IP1000B

Interpolation IC GC-IP1000B, TQFP 64

PR-00055-01