IC-MLEVALML1D datasheet(8/17 Pages) ICHAUS

8 / 17 page

iC-ML

HALL Position Sensor / Encoder

Rev A3, Page 8/17

Figure 7: Sensing of a pole wheel at the peripherie

using iC-ML

When the Vcos and Vsin signals are displayed as a

Lissajou ﬁgure, a rotating vector is deﬁned. If the chip

is moved in positive x-direction with respect to the tape,

this vector rotates counterclockwise (mathematically

positive rotation), whereas if the tape is moved in pos-

itive x-direction (with respect to the chip), the vector

rotates clockwise (mathematically negative rotation).

Figure 8: Signal outputs Vsin und Vcos

Programming the conﬁguration

iC-ML has 28 modes of operation (see tables on the

following pages). After the device has been switched

on or "woken up" from standby mode by a low sig-

nal at pin NEN the levels at the conﬁguration inputs

CFG1 to CFG3 are assessed. These three-level in-

puts can be connected to GND (low ), left open (open)

or connected to VDD (high). For correct identiﬁcation,

a setup time of at least tp(CFGx) = 4 µs must be main-

tained between programming the conﬁguration and ac-

tivating the device. While the device is active changes

in signal at the conﬁguration inputs are ignored.

If several iC-MLs are connected in series in chain op-

eration (see the description of functions on page 12)

it must be ensured that the NEN input of the devices

is switched to low during the various clock cycles and

that the programming default does thus not lie within

the active phase of the devices.

In standby all ports are switched to tristate, i.e. high

impedance. Only in chain operation modes port D is

active high so that the devices arranged further behind

can also be deactivated.

VDD

td(VDD)on

tp(CFGx)

NEN

CFGx

iC-ML active

Figure 9: Programming the conﬁguration

IC-MLEVALML1D Datasheet(PDF) 8 Page - IC-Haus GmbH

IC-MLEVALML1D Datasheet(HTML) 8 Page - IC-Haus GmbH

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17

Datasheet Download

Link URL