epc110
SPI Interface Data (for more details refer to “SPI Interface“)
Symbol Parameter Conditions/Comments
Values
Typ.
Units
Min.
Max.
fSCK
tH
SCK Clock frequency
10
MHz
ns
High period of SCK
50
50
tL
Low period of SCK
ns
trfSCK
t1
Serial clock rise / fall time of SCK
Edge time CS --> SCK
Set-up time of SI
20
ns
50
15
15
ns
tSU
thold
tD
ns
Hold time of SI
ns
Output data of SO valid after SCK
Output data rise / fall time of SO
20
20
ns
trf
ns
Other Data (refer to “Functional Description“)
Symbol Parameter Conditions/Comments
Para-
meter
Values
Typ.
Units
Min.
Max.
IPDN
IPDH
Ipulse
Photo Current Sensitivity OUTN
Pulse height to trigger internal threshold
OUTN. Refer to Functional Description
SENSN
SENSH
Programmable between
24...108
nA
nA
µA
Photo Current Sensitivity OUTH
Maximum Input Pulse Current
Pulse height to trigger internal threshold
OUTH. Refer to Functional Description
Programmable between
60...144
If the input current pulse is above this level,
the recovery time tREC becomes trelax . (refer to
100
parameter trelax
)
IN_Imin
IN_Imax
IPDDC
Input related noise
@ IPDDC =0
15
20
nA RMS
nA RMS
mA
Input related noise
@ IPDDC =IPDDCMax
DC Photo Diode Current
generated by ambient light with no effect to
the sensitivity
0.0
2
CPD
tPulse
tCycle
Photodiode Capacitance
LED Pulse Length
LED Cycle Time
Refer to section Application Information,
Photodiode Capacitance
50
pF
µs
µs
TPULSE Programmable between
1…8
for fork light barrier, standalone mode
TPER
Programmable between
5…100'000
for fork light barrier, controlled mode
controlled by EN input
50
trelax
tR
Recovery time
Response Time
after a strong current pulse (Ipulse = 100µA)
Minimum time from light beam detection to
status change of the output OUTN or OUTH. tCycle / nV
tR_MAX = ( nV + 1 ) * tCycle
µs
refer to
Programmable between
10µs...3.3s
tF
Release Time (fall time)
Valid pulse counts
Minimum time from beam interruption to
status change of the output OUTN or OUTH. tCycle / nM
tF_MAX = ( nM + 1 ) * tCycle
refer to
Programmable between
10µs...54.6min
nV
nM
Number of weighted valid (non-missing)
pulses to trigger the output.
Refer to Functional Description
INC
(Programmable between
1…32 pulses)
Missing pulse counts
Number of weighted missing pulses to
release the output.
DEC
(Programmable between
1…32'767 pulses)
Refer to Functional Description
© 2011 ESPROS Photonics Corporation
Characteristics subject to change without notice
3
Datasheet epc110 - V2.1
www.espros.ch
EPC [ ESPROS PHOTONICS CORP ]
