IC-NQ Datasheet, PDF (16/25 Pages) IC-Haus GmbH – 13-bit Sin/D CONVERTER WITH CALIBRATION

iC-NQ
13-bit Sin/D CONVERTER WITH CALIBRATION
ZPOS
Code
0x00
0x08
0x10
0x18
Code
0x01
...
0x1F
Notes
Adr 0x01, Bit 4:0
Chip versions iC-NQ X2, iC-NQ X3:
Position
0°
90°
180°
270°
Chip version iC-NQ V2:
Position
11.25° (1 x 11.25°)
...
348.75° (31 x 11.25°)
The zero signal is only output if released by the
input pins (for instance with PZERO = 5 V, NZERO =
VREF).
Table 21: Zero Signal Position
Rev D1, Page 16/25
CFGZ
Code
0x00
0x01
0x02.. 03
Adr 0x02, Bit 1:0
Length
90°
180°
Synchronization
Table 22: Zero Signal Length
CFGAB
Code
0x00
0x01
0x02
0x03
Adr 0x03, Bit 5:4
Z = 1 for
B = 1, A = 1
B = 0, A = 1
B = 1, A = 0
B = 0, A = 0
Table 23: Zero Signal Logic
SIN
COS
A
B
Z (CFGZ= 0)
Z (CFGZ= 1)
Z (CFGZ= 2)
-180°
-90°
0° 45° 90°
180° Winkel
Figure 14: Incremental output signals for various length of the zero signal.
Example for chip release iC-NQ V2 with resolution 64 (SELRES = 0x0A), a zero signal position
of 45° (ZPOS = 0x04, CFGAB = 0x00) and no reversal of the rotational sense (ROT = 0x00, COS
leads SIN).