iC-PN3312
preliminar y
Rev A1, Page 2/7
PHASED ARRAY NONIUS ENCODER 33-512
DESCRIPTION
The optical encoder iC-PN features monolithically in-
tegrated photosensors arranged as a phased-array.
The transimpedance gain of typically 1 MΩ generates
output signals of a few hundred millivolts already from
an illumination level of 0.5 mW/cm
2
. In most cases
no additional measures must be considered to filter
for noise and interferences. The spectral sensitivity
range includes visible to near infrared light, with the
maximum sensitivity being close to a wavelength of
680 nm.
Analog nonius-scale encoders are the typical ap-
plication for iC-PN. Its 3-track scanning features
a phased-array of multiple photosensors each per
track, generating positive and negative going sine
signals, as well as positive and negative going cosine
signals. An excellent matching and common mode
behavior of the differential signal paths is obtained
by a paired amplifier design, reducing the needs for
external signal calibration to an absolute minimum.
PACKAGES INFORMATION
PAD LAYOUT (2.88 mm x 3.37 mm)
PAD FUNCTIONS
No. Name Function
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
VCC
VREF
PS_N
NS_N
PS_M
NS_M
PS_S
NS_S
NC_S
PC_S
NC_M
PC_M
NC_N
PC_N
GND
+4.5..5.5 V Supply Voltage
Reference Voltage Output
N-Track Sine +
N-Track Sine -
M-Track Sine +
M-Track Sine -
S-Track Sine +
S-Track Sine -
S-Track Cosine -
S-Track Cosine +
M-Track Cosine -
M-Track Cosine +
N-Track Cosine -
N-Track Cosine +
Ground
All outputs are analog voltage outputs.
ICHAUS [ IC-HAUS GMBH ]
