IC-MHL200 Datasheet, PDF (25/33 Pages) IC-Haus GmbH – 12-BIT LINEAR / ROTARY POSITION HALL ENCODER

iC-MHL200
12-BIT LINEAR / ROTARY POSITION HALL ENCODER
OUTPUT DRIVERS
Rev C1, Page 25/33
Six RS422-compatible output drivers are available,
which can be configured for the incremental signals
and commutation signals. The following table on the
CFGO register bits provides an overview of the possible
settings.
CFGO(1:0)
Value
0x00
0x01
0x10
0x11
Addr. 0x05; bit 5:4
Output
Differential incremental ABZ (U=NA, V=NB, W=NZ)
Incremental ABZ + commutation UVW
Differential commutation UVW (A=NU, B=NV,
Z=NW)
Incremental ABZ + AB4 (U=A4, V=B4, W=0)
Table 25: Configuration of output drivers
In the differential incremental mode (CFGO = 00, Figure
23), quadrature signals are available on the pins A, B
and Z. The respective inverted quadrature signals are
available on the pins U, V and W. As a result, lines can
be connected directly to the module. Another configura-
tion of the incremental signals is specified in the section
"Sine-to-Digital Converter".
With CFGO = 01 (Figure 24) the ABZ incremental sig-
nals and the UVW commutation signals are available
on the six pins. As long as the current angular posi-
tion is not yet available during the start-up phase, all
commutation signals are at the low level.
CFGO 0 _A
CFGRES 7
CFGDIR 0 ^B
Z
U
V
W
PCOS
PSIN
Figure 23: ABZ differential incremental signals
CFGO 1 _A
CFGRES 7
CFGDIR 0 B
CFGPOLE 0
Z
U
V
W
PCOS
PSIN
Figure 24: ABZ incremental / UVW commutation sig-
nals
CFGO 2 _A
CFGRES 7
CFGDIR 0 B
CFGPOLE 0
Z
U
V
W
PCOS
PSIN
With CFGO = 10, the third mode (Figure 25) is available
for transferring the commutation signals via a differen-
tial line. The non-inverted signals are on the pins U, V
and W, the inverted signals on A, B and Z.
The ABZ quadrature signals with an adjustable higher
resolution and quadrature signals with one period per
rotation are available in the fourth mode (Figure 26).
Four segments can be differentiated with the pins U
and V. This information can be used for an external
period counter which counts the number of scanned
complete rotations.
Figure 25: UVW differential commutation signals
CFGO 3 _A
CFGRES 7
CFGDIR 0 ^B
Z
U
V
W
PCOS
PSIN
Figure 26: ABZ incremental signals / period counter