IC-HF Datasheet, PDF (8/36 Pages) IC-Haus GmbH – 6-CH. ENCODER LINK, RS-422 DRIVER/RECEIVER

iC-HF
preliminary
6-CH. ENCODER LINK, RS-422 DRIVER/RECEIVER
ELECTRICAL CHARACTERISTICS
Operating Conditions: Tj=-40 °C . . . 125 °C, VDD = 3 . . . 5.5 V, unless otherwise stated
Item Symbol Parameter
No.
Conditions
RS-422 Inputs Q4/NQ4 . . . Q6/NQ6
501 Ri
Input Resistance
Channel configuration as RS-422 Receiver
Vi(Qx)= 0 . . . 5.5 V
Vi(NQx)= 0 V
Ri
=
5.5
∆ IQx
OEN = 1
502 Vi()
Input Voltage
Channel configuration as RS-422 Receiver
OEN = 1
503 |Vid()|
Differential Input Voltage
Channel configuration as RS-422 Receiver
|Vid()| = |Vip() − Vin()|
OEN = 1
504 Vic()
Common-Mode Input Voltage
Channel configuration as RS-422 Receiver
Vic()
=
Vip()−Vin()
2
OEN = 1
505 Vid()hys Differential Input Voltage
Hysteresis
Channel configuration as RS-422 Receiver
OEN = 1
506 f(max)
Maximum Communication
Frequency
Channel configuration as RS-422 Receiver
OEN = 1
R Termination = 120 Ω
507 tdmax()
Maximum delay from RS422
input to Single-Ended Output
Line Driver Outputs Q1/NQ1 . . . Q6/NQ6
601 Icex
Output Leakage Current
OEN = 0
602 Vs()hi
Saturation Voltage hi
Vs() = VDD - V(); I() = -20 mA
OEN = 1
603 Vs()lo
Saturation Voltage lo
Vs() = V(); I() = 30 mA
OEN = 1
604 Isc()lo
Short-Circuit Current lo at output V() = V(VDD)
driver
OEN = 1
605 Isc()hi
Short-Circuit Current Hi at output V() = V(GND)
driver
OEN = 1
606 f(max)
Maximum Output Frequency
Load = 120 Ω
607 tr()
Rise Time
RL = 120 Ω in-between Qx and NQx;
VDD = 5.5 V
VDD = 3 V
608 tf()
Fall Time
RL = 120 Ω in-between Qx and NQx;
VDD = 5.5 V
VDD = 3 V
Reverse Polarity Protection and Supply Switches VDDS, GNDS
701 Vs()
Saturation Voltage VDD,
Vs(VDDS) = VDD − V(VDDS)
I(VDDS) = -20 . . . 0 mA
I(VDDS) = -60 . . . -20 mA
702 Vs()
Saturation Voltage GND,
I(GNDS) = 0 . . . 20 mA
Vs(GNDS) = V(GNDS) − GND I(GNDS) = 20 . . . 60 mA
703 Irev(VDD) Reverse-Polarity Current
V(VDD) = -5.5V . . . -3 V
Encoder Link Sequence
801 Vt()hi
Input Voltage Level hi at Q1, NQ1
802 Vt()lo
Input Voltage Level lo at Q1, NQ1
803 ts
Valid State Duration Time
804 ∆ ts
Max State Time Variation
ts = 50 µs
805 Ilk()
Leakage Current
voltage reversal
Configuration Output, pin PTC
901 Vptc()
Configuration Output Voltage
Encoder Link State
C_PTC = 10 nF optional
902 Ilk()
Leakage Current
no Encoder Link State
Rev C1, Page 8/36
Unit
Min. Typ. Max.
1
kΩ
0
VDD
V
0.05
VDD/2 V
0.8
VDD
V
0.5
8
mV
10
MHz
40
ns
-35
0
35
µA
800 mV
800 mV
30
65
mA
-45
-20 mA
10
MHz
15
ns
20
ns
15
ns
20
ns
150 mV
250 mV
150 mV
250 mV
-1
0
mA
20
49
50
-500
-1
80 %VDD
%VDD
52
µs
200
ns
1
µA
45
50
-10
55 %VDDS
10
µA