IC-MD Datasheet, PDF (5/23 Pages) IC-Haus GmbH – ENCODER RECEIVER/COUNTER WITH SPI AND BiSS

iC-MD RS-422 QUADRATURE
preliminary
ENCODER RECEIVER/COUNTER WITH SPI AND BiSS
Rev A1, Page 5/23
ELECTRICAL CHARACTERISTICS
Operating Conditions: VDD = 3 . . . 5.5 V, Tj = -40 . . . 125 °C, unless otherwise noted.
Item Symbol Parameter
No.
Conditions
RS-422 Configuration: Differential Inputs AP, AN, BP, BN, CP, CN
A01 Vcm()
Common Mode Voltage Range
TTL = 0, LVDS = 0
VDD = 4.5 . . . 5.5 V
VDD = 3 . . . 5.5 V
A02 Vd()
Differential Input Threshold
Voltage
TTL = 0, LVDS = 0,
V() = V(AP) - V(AN)
V() = V(BP) - V(BN)
V() = V(CP) - V(CN)
A03 Vhys()
Differential Input Hysteresis
TTL = 0, LVDS = 0,
Vhys() = Vth()hi-Vth()lo
(guaranteed by design)
TTL Configuration: Input AP, AN, BP, BN, CP, CN
B01 Vt()hi
Input Threshold Voltage hi at
AP, AN, BP, BN, CP, CN
TTL = 1, LVDS = 0
B02 Vt()lo
Input Threshold Voltage lo at
AP, AN, BP, BN, CP, CN
TTL = 1, LVDS = 0
B03 Vt()hys
Input Hysteresis at
AP, AN, BP, BN, CP, CN
TTL = 1, LVDS = 0
B04 Rpd()
Pull-Down Resistor
TTL = 1, LVDS = 0
LVDS Configuration: Differential Inputs AP, AN, BP, BN, CP, CN
C01 Vin()
Input Voltage Range
TTL = 0, LVDS = 1
VDD = 4.5 . . . 5.5 V
VDD = 3 . . . 5.5 V
C02 Vd()
Differential Input Threshold
Voltage
TTL = 0, LVDS = 1
V() = V(AP)-V(AN)
V() = V(BP)-V(BN)
V() = V(CP)-V(CN)
C03 Vhys()
Differential Input Hysteresis
TTL = 0, LVDS = 1
Vhys() = Vth()hi-Vth()lo
(guaranteed by design)
Unit
Min. Typ. Max.
0
0
-300
3
V
1.5
V
300 mV
2.5
10
mV
2
V
0.8
V
150 300
mV
35
50
65
kΩ
0.8
0.8
-200
3
V
1.5
V
200 mV
1.2
8
mV