IC-NG Datasheet, PDF (1/21 Pages) IC-Haus GmbH – 8-BIT Sin/D CONVERTER-PROCESSOR

iC-NG
8-BIT Sin/D CONVERTER-PROCESSOR
Rev D3, Page 1/21
FEATURES
Ë Real-time interpolator with a programmable resolution of up to
256 steps/period
Ë Calibration features permit adaptation of distorted sine/cosine
signals
Ë Output with A/B/Z incremental signals of up to 400kHz, as a
parallel 8-bit absolute vector or via a serial interface
Ë Error messaging with excessive input frequency
Ë Programmable index position
Ë Fast 24-bit multiturn counting (position capture with target
position interrupt)
Ë 8-bit µP interface
Ë Interrupt controller
Ë Adjustable clock oscillator
Ë Front-end amplifiers configurable externally
Ë Chip setup can be loaded from a serial EEPROM
Ë TTL-compatible inputs, TTL-/CMOS-compatible outputs
Ë Inputs and outputs protected against destruction by ESD
APPLICATIONS
Ë Absolute and incremental angle
interpolation from orthogonal
sinusoidal input signals
Ë Interpolating interface for MR
sensors and optical analog
encoders
PACKAGES
SO28
SSOP28
BLOCK DIAGRAM
CLK INPUT/OSCILLATOR
R/f
13 ^RCLK
2V
24 SIN
23 ^NSIN
22 ^PSIN
INPUT SIN
21 COS
20 NCOS
19 PCOS
INPUT COS
18 ZERO
17 NZERO
16 PZERO
INPUT INDEX/ZERO
15 VREF
REFERENCE
VOLTAGE
2.4V
14
VDD
28 27
SCL SDA
SERIAL EEPROM
INTERFACE
26
NRES
STATE CONTROL
µP INTERFACE
NRD 3
NWR 4
A × sin
Segment
MUX
A × cos
SINE / DIGITAL CONVERTER
PGA
Comparator
Resolution, Hysteresis
Binary
Up/Down Counter
A × sin
TAN D/A
Converter
tan(phi) _tan phi _D/A
OFFS
Converter Function Adaptation
(per segment)
D0 ⁵
D1 6
D2 7
D3 8
D4 9
D5 ¹⁰
D6 ¹¹
D7 12
4-FOLD EDGE
EVALUATION
A4
B4
Z4
GND
25
internal data bus
phi
DIGITAL SIGNAL PROCESSING
24-Bit Counter
RPM/Speed Aquisition
Interrupt Controller
Index/Zero Pulse Justification
Incremental Signal Generator
Mode Switch (Frequency Overrun)
iC-NG
ERROR MONITOR
NER 1
MFP
2
Copyright © 2006, iC-Haus
http://www.ichaus.com