IC-MG_14 Datasheet, PDF (17/22 Pages) IC-Haus GmbH – 8-Bit Sin/Cos INTERPOLATION IC WITH RS422 DRIVER

iC-MG
8-Bit Sin/Cos INTERPOLATION IC WITH RS422 DRIVER
SINE-TO-DIGITAL CONVERSION
Rev D1, Page 17/22
SELRES
Code
0x00E0
0x01B0
0x0398
0x0414
0x078C
0x090A
0x0F86
0x1305
0x1804
0x3102
Adr 0x1C, bit 6:0; Adr 0x1B, bit 7:0
Angle Steps
(per period)
Interpolation
Factor
Permiss. Input
Frequency
4
x1
500 kHz
8
x2
500 kHz
16
x4
200 kHz
20
x5
200 kHz
32
x8
125 kHz
40
x10
100 kHz
64
x16
62.5 kHz
80
x20
50 kHz
100
x25
40 kHz
200
x50
20 kHz
Table 29: Converter Resolution
SELHYS
Code
0x0 to 0x1
0x2
0x3 to 0xD
0xE
0xF*
Notes
Adr 0x1D, bit 3:0
Function
Device test only
1 conversion increment (≈ 1.8^◦)
1.5 to 6.5 conversion increments (≈ 2.7^◦-11.7^◦)
1/2 angle step increment
1 angle step increment
*) Permissible from 8 angle steps upwards.
Table 30: Converter Hysteresis
The programmable converter hysteresis is determined
by SELHYS. It is set in multiples of the increment size
and may have a maximum of 45^◦ of the input signal
period.