XR34350 Datasheet, PDF (4/20 Pages) Exar Corporation – Internal Termination and Wide Output Swing

XR34350
Electrical Characteristics (Continued)
Unless otherwise noted: V_CC = 3.3V ±5% or 5.0V ±5%, C1 to C4 = 0.1µF; T_A = T_MIN to T_MAX. Typical values are at
V_CC = 3.3V, T_A = 25°C.
Symbol
Parameter
Conditions
Min
Typ
Max
Units
Differential Receiver Inputs, RS-485/RS-422
R_IN
Receiver input resistance
TERM = 0V, -7V ≤ V_IN ≤ 12V
V_TH
Receiver differential threshold voltage
96
kΩ
-200
-125
-50
mV
∆V_TH
Receiver input hysteresis
V_CM = 0V
25
mV
I_IN
Receiver input current
R_TERM
Termination resistance
Differential Driver Outputs, RS-485/RS-422
V_IN = 12V
V_IN = -7V
TERM = V_CC, Figure 6, -7V ≤ V_CM ≤
12V
TERM = V_CC, Figure 6, V_CM = 0V
125
µA
-100
µA
100
120
155
Ω
100
120
140
Ω
V_OD
Differential driver output
R_L = 100Ω, RS-422, Figure 7
2
R_L = 54Ω, RS-485, Figure 7
1.5
-7V ≤ V_CM ≤12V, Figure 8
1.5
V_CC
V
V_CC
V
V_CC
V
∆V_OD
Change in magnitude of differential
output voltage
No load
V_CC
V
-0.2
0.2
V
V_CM
∆V_CM
Driver common mode output voltage
Change in magnitude of common mode
output voltage
R_L = 54Ω or 100Ω, Figure 7
3
V
0.2
V
I_OSD
I_O
Driver output short-circuit current
Driver output leakage current
-7V ≤ V_O ≤ 12V, Figure 9
DIR1 = 0V in Mode 11, or Enable = 0V,
V_O = 12V, V_CC = 0V or 5.25V
DIR1 = 0V in Mode 11, or Enable = 0V,
V_O = -7V, V_CC = 0V or 5.25V
-250
-100
250
mA
100
µA
µA
REV1B
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