IC-ME Datasheet, PDF (6/11 Pages) IC-Haus GmbH – DUAL LIGHT-GRID PULSE RECEIVER

iC-ME
DUAL LIGHT-GRID PULSE RECEIVER
preliminary
Rev A1, Page 6/11
OPERATING REQUIREMENTS: Logic
Operating Conditions: VDD = 5 V ±10 %, Ta = 0...70 °C, CL() = 50 pF,
input levels lo = 0...0.45 V, hi = VDD - 0.45 V...VDD, see Fig. 1 for reference levels and waveforms
Item Symbol Parameter
No.
Conditions
I001 ten
Activation Time:
DIN lo → hi to CLK lo → hi
standby to amplifier operation (see Fig. 4)
I002 tinh
Output Activation Time:
1^st CLK lo → hi until output ready to
report
sufficient decay of transient differential output
current: |I(SN) − I(SP) − IO * ISUM| ≤ 20 µA
(see Fig. 4)
I003 tset
Setup time:
DIN stable before CLK lo → hi
see Fig. 2
I004 thold
Hold time: DIN stable after CLK lo → hi see Fig. 2
I005 fo
Permissible Frequency at CLK
Min.
10
5
50
50
Unit
Max.
µs
µs
ns
ns
10
MHz
V
VDD−0.45 V
Vt()hi
Vt()lo
0.45 V
0
Input/Output
1
CLK
DIN
Q1
t set (DIN)
t hold (DIN)
Q2
Q3
t
DOUT
t plh (CLK−DOUT)
t phl (CLK−DOUT)
Figure 1: Reference levels
I(PD)
t
I(PD)pk
2
t whi
I(PD)pk
tr
I(SP)
−I(SN)
Ipnpk
t wpk
tf
Offset (= IO * ISUM)
t
may be positive or negative
Figure 3: Differential output current
pulse at SP and SN versus
input current pulse at PD
Figure 2: Timing characteristics
1st
2nd
CLK
t en
DIN
Q1
Q2
Q3
EN1
INH= Q1
I(PD)
V(SP)
V(SN)
t inh
t p ^{( )} IDCon
t wlo
t whi
t p ^{( )} IDCoff
Figure 4: Timing characteristics (analogue section). Outputs SP and
SN with resistors to VDD