epc110
DEC
1
17
12...9 Weight of missing pulse counts. Refer to Pulse Modulated Operation (e.g. OUTNint to OUTN):
Minimum number of missing pulses nM of light detection for counting the release time (fall time) tF.
12 11 10
9
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
DEC Min. nM
Setting
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
1
32768
X (Default setting)
16384
8192
4096
2048
1024
512
256
128
64
2
3
4
5
6
7
8
9
10
11
12
13
14
15
32
16
8
X (typical setting)
4
2
1
TPER
1
17
15...13 For fork light barrier, standalone mode: LED cycle time tCycle
.
For fork light barrier, controlled mode: Select next lower value then external EN cycle time.
15 14 13
Values Default
Recommended Setting
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
5μs
10μs
X
30μs
100μs
300μs
1ms
X (typical setting)
10ms
100ms
Parameter
Name
Register No.
ROM RAM
Bit No. Function
FUSEBIT
2
18
0
During write operation to this RAM register, put this bit = 0.
This bit will be set automatically, when corresponding ROM register is programmed.
0
0
1
Values
The corresponding ROM register is not programmed
The corresponding ROM register is programmed
SENSN
2
18
3...1
Lower threshold setting of the photo current sensitivity IPDN to trigger output OUTN.
3
0
0
0
0
1
1
1
1
2
0
0
1
1
0
0
1
1
1
0
1
0
1
0
1
0
1
Values Default Recommended Comments
24nA
36nA
48nA
60nA
72nA
84nA
96nA
108nA
X
A lower value increases the sensitivity. A too sensitive setting leads to
false readings because of shot noise of the receiver photo diode and the
internal amplifier (typ. input noise level is 7nA RMS without photo diode).
Also induced EMI can lead to false readings if the sensitivity is set too
low. The EMI sensitivity is heavily depending on the system architecture
and the electromechanical design. The better the shielding of the chip
and the photo diode and the better the PCB layout, the better the EMI
immunity.
X
The tolerance of the threshold is approx. ±25%.
© 2011 ESPROS Photonics Corporation
Characteristics subject to change without notice
14
Datasheet epc110 - V2.1
www.espros.ch
EPC [ ESPROS PHOTONICS CORP ]
