iC-LNB 18-BIT OPTO ENCODER
WITH SPI AND SER/PAR INTERFACES
Rev A1, Page 11/35
ELECTRICAL CHARACTERISTICS
Operating conditions: VDDA = 4 V to 5.5 V, VDD = 3 V to 5.5 V, GNDA = GND, Tj = -40 °C to 125 °C, unless otherwise specified.
Item Symbol
No.
Parameter
Conditions
Unit
Min.
Typ.
Max.
Incremental Outputs INCA, INCB, INCZ
901
Vs()hi
Saturation Voltage hi
Vs()hi = VDD - V();
400
mV
VDD = 3 . . . 4 V, I() = 1.5 mA
VDD = 4 . . . 5.5 V, I() = 2.5 mA
902 Isc()hi
903
Short-Circuit Current hi
Saturation Voltage lo
-100
1.5
-1.5
400
mA
mV
Vs()lo
VDD = 3 . . . 4 V, l() = 1.5 mA
VDD = 4 . . . 5.5 V, l() = 2.5 mA
904 Isc()lo
905 tr()
Short-Circuit Current lo
Rise Time
100
30
mA
ns
CL = 30 pF, V(): 10% → 90% VDD
CL = 30 pF, V(): 90% → 10% VDD
906 tf()
Fall Time
30
ns
SPI Interface SCK, CS, MISO, MOSI
A01
Vs()hi
Saturation Voltage hi at MISO
Vs()hi = VDD - V();
400
mV
VDD = 3 . . . 4 V, I() = 1.5 mA
VDD = 4 . . . 5.5 V, I() = 2.5 mA
A02 Isc()hi
A03
Short-Circuit Current hi at MISO
Saturation Voltage lo at MISO
-100
1.5
-1.5
400
mA
mV
Vs()lo
VDD = 3 . . . 4 V, l() = 1.5 mA
VDD = 4 . . . 5.5 V, l() = 2.5 mA
A04 Isc()lo
A05 fin()
Short-Circuit Current lo at MISO
100
10
mA
Permissible Clock Frequency at
SCK
MHz
A06 Vt()hi
A07 Vt()lo
A08 Vt()hys
Threshold Voltage hi at SCK, CS,
MOSI
2
V
V
Threshold Voltage lo at SCK, CS,
MOSI
0.8
40
Hysteresis at SCK, CS, MOSI
Pull-Up Current at SCK, MOSI
Vt()hys = Vt()hi - Vt()lo
100
mV
A09
A10
A11
A12
Ipu()
Vpu()
Ipd()
Vpd()
V() = 0 . . . VDD - 1 V;
VDD = 3 . . . 4 V
VDD = 4 . . . 5.5 V
-65
-120
-25
-60
-5
-10
µA
µA
Pull-Up Voltage at SCK, MOSI
Pull-Down Current at CS
Pull-Down Voltage at CS
Vpu() = VDD - V();
VDD = 3 . . . 4 V, I() = -3 µA
VDD = 4 . . . 5.5 V, I() = -5 µA
400
mV
V() = 1 V . . . VDD;
VDD = 3 . . . 4 V
VDD = 4 . . . 5.5 V
5
8
25
60
80
150
µA
µA
VDD = 3 . . . 4 V, I() = 3 µA
VDD = 4 . . . 5.5 V, I() = 5 µA
400
mV
A13 tp1()
A14 tp2()
Propagation Delay: MISO hi
after Falling Edge CS
see Figure 2
30
30
ns
Propagation Delay: MISO Stable see Figure 2
after Clock Edge SCK
ns
ICHAUS [ IC-HAUS GMBH ]
