DS91D176 Datasheet, PDF (11/13 Pages) National Semiconductor (TI) – Multipoint-LVDS (M-LVDS) Transceivers

Function Tables
DS91D176/DS91C176 Transmitting
Inputs
RE DE
D
X 2.0V 2.0V
X 2.0V 0.8V
X 0.8V X
X — Don’t care condition
Z — High impedance state
Outputs
B
A
L
H
H
L
Z
Z
DS91D176 Receiving
Inputs
RE DE
A−B
0.8V 0.8V ≥ +0.05V
0.8V 0.8V ≤ −0.05V
0.8V 0.8V
0V
2.0V 0.8V
X
X — Don’t care condition
Z — High impedance state
Output
R
H
L
X
Z
DS91C176 Receiving
Inputs
RE DE
A−B
0.8V 0.8V ≥ +0.15V
0.8V 0.8V ≤ +0.05V
0.8V 0.8V
0V
2.0V 0.8V
X
X — Don’t care condition
Z — High impedance state
Output
R
H
L
L
Z
DS91D176 Receiver Input Threshold Test Voltages
Applied Voltages
Resulting Differential Input
Voltage
V_IA
2.400V
V_IB
0.000V
V_ID
2.400V
0.000V
2.400V
−2.400V
3.800V
3.750V
0.050V
3.750V
3.800V
−0.050V
−1.400V
−1.350V
−0.050V
−1.350V
−1.400V
0.050V
H — High Level
L — Low Level
Output state assumes that the receiver is enabled (RE = L)
Resulting Common-Mode
Input Voltage
V_IC
1.200V
1.200V
3.775V
3.775V
−1.375V
−1.375V
Receiver
Output
R
H
L
H
L
H
L
DS91C176 Receiver Input Threshold Test Voltages
Applied Voltages
Resulting Differential Input
Voltage
V_IA
2.400V
V_IB
0.000V
V_ID
2.400V
0.000V
2.400V
−2.400V
3.800V
3.650V
0.150V
3.800V
3.750V
0.050V
−1.250V
−1.400V
0.150V
−1.350V
−1.400V
0.050V
H — High Level
L — Low Level
Output state assumes that the receiver is enabled (RE = L)
Resulting Common-Mode
Input Voltage
V_IC
1.200V
1.200V
3.725V
3.775V
−1.325V
−1.375V
Receiver
Output
R
H
L
H
L
H
L
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