iC-NQI
13-bit Sin/D CONVERTER WITH CALIBRATION
Rev A2, Page 12/26
CONVERTER FUNCTIONS
SELRES
Adr 0x00, Bit 4:0
SELRES
Adr 0x00, Bit 4:0
Code
Binary
resolutions
Examples of permissible
input frequencies finmax
(FCTR 0x0004, 0x4304)
Code
Decimal
resolutions
Examples of permissible
input frequencies finmax
(FCTR 0x0004, 0x4304)
0x00
0x01
0x02
0x03
0x04
0x05
0x06
0x07
0x08
0x09
0x0A
0x0B
0x0C
0x0D
0x0E
0x0F
-
0x10
0x11
0x12
0x13
0x14
0x15
0x16
0x17
0x18
0x19
0x1A
0x1B
0x1C
0x1D
0x1E
0x1F
Notes
2000
1600
1000
800
650 Hz, 2.6 kHz
812 Hz, 3.3 kHz
1.3 kHz, 5.2 kHz
1.6 kHz, 6.5 kHz
2.6 kHz, 10.4 kHz
3.2 kHz, 13 kHz
5.2 kHz, 20.8 kHz
5.2 kHz, 20.8 kHz
4.1 kHz, 16.3 kHz
4.1 kHz, 16.3 kHz
4.1 kHz, 16.3 kHz
4.1 kHz, 16.3 kHz
6.5 kHz, 26 kHz
6.5 kHz, 26 kHz
6.5 kHz, 26 kHz
6.5 kHz, 26 kHz
-
-
8192
4096
2048
1024
512
256
128
64
32
16
8
158 Hz, 635 Hz
317 Hz, 1.27 kHz
500
634 Hz, 2.54 kHz
400
1.27 kHz, 5.1 kHz
250 *1
125 *1,2
320
160 *2
80 *4
40 *8
200
100 *2
50 *1,4
25 *1,8
2.54 kHz, 10.2 kHz
5.1 kHz, 20.3 kHz
10.2 kHz, 40.6 kHz
20.3 kHz, 81.3 kHz
40.6 kHz, 162.5 kHz
81.3 kHz (max. 250 kHz @ 0x4202)
162 kHz (max. 250 kHz @ 0x4102)
-
-
*1
Not useful with increment A quad B output.
*2,4,8
Table 11: Binary resolutions
The internal converter resolution is higher
by factor 2, 4 or 8.
Table 12: Decimal resolutions
HYS
Adr 0x01, Bit 7:5
Code
Hysteresis in
degree
Hysteresis in
LSB
Absolute error*
0x00
0x01
0°
0.0879°
1 LSB @
12 bit
0.044°
0.088°
0.176°
0.352°
0x02
0x03
0x04
0.1758°
0.3516°
0.7031°
1/2 LSB @
10 bit
1 LSB @
10 bit
1/2 LSB @
8 bit
0x05
0x06
0x07
1.4063°
5.625°
45°
1 LSB @ 8 bit 0.703°
2.813°
only
22.5°
recommended
for calibration
Notes
*) The absolute error is equivalent to one half the
angle hysteresis
Table 13: Hysteresis
ICHAUS [ IC-HAUS GMBH ]
