IC-LNG_14 Datasheet, PDF (26/30 Pages) IC-Haus GmbH – 16-BIT OPTO ENCODER

iC-LNG 16-BIT OPTO ENCODER ^preliminary
WITH SPI AND SERIAL / PARALLEL OUTPUTS
INCREMENTAL OUTPUT
Rev B1, Page 26/30
At pins INCA and INCB either incremental signals with
interpolation factors of 1 to 16 or internal digital signals
are output. Selection is made using parameter INC.
INC
0x00
0x01
0x02
0x03
0x04
0x05
0x06
0x07
Add. 0x08, bit 6:4
Interpolation factor 1
Interpolation factor 2
Interpolation factor 4
Interpolation factor 8
Interpolation factor 16
Digital test
iC-Haus test 1
iC-Haus test 2
At pin INCZ a zero pulse is output which is suitable
for the selected interpolation factor. The zero pulse is
symmetrical to the falling edge of the MSB signal on
the digital tracks and is half an incremental cycle long
gated with B low.
The phase relationship between the SIN/COS signals
and the incremental signals is shown in Figure 18.
Output in digital test and iC-Haus test modes is de-
scribed in the section on test functions on page 28.
Table 27: Incremental output
PSIN
PCOS
INCA
INCB
INC=0x00
INCZ
MSB
(D11)
INCA
INCB
INC=0x01
INCZ
MSB
(D11)
Figure 18: SIN/COS and ABZ phase relationship