iC-PN2624
preliminar y
Rev B1, Page 2/7
PHASED ARRAY NONIUS ENCODER 26-1024
DESCRIPTION
The optical encoder iC-PN2624 features monolithi-
cally integrated photosensors arranged in a phased-
array.
A high transimpedance gain of typically 4 MΩ gener-
ates output signals of a few hundret Millivolts already
from illumination levels of 1 to 3 mW/cm
2
. In most
cases no additional measures must be considered to
filter for noise and interferences.
Analog nonius encoders are the typical applica-
tion for iC-PN2624. 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.
The spectral sensitivity range includes visible to near
infrared light, with the maximum sensitivity being
close to a wavelength of 680 nm. An output voltage
of approximately 1 V is typical under low light condi-
tions, for instance when iC-PN2624 is illuminated at
only 1.5 mW/cm
2
by an 740 nm LED.
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 ]
