SP3486 Datasheet, PDF (6/9 Pages) Sipex Corporation – +3.3V Low Power Quad RS-485/RS-422 Line Drivers

3V
INPUT
0V
VOH
Y OUTPUT
VOL
1.5V
tPLH
VOM
1.5V
tPHL
VOM
VOH
Z OUTPUT
VOL
tPHL
VOM
tPLH
VOM
VOM =
VOH + VOL
2
≈ 1.5V
Figure 5. Driver Propagation Delay Waveforms
3V
INPUT
0V
VOH
OUTPUT
HIGH
0V
VCC
OUTPUT
LOW
VOL
1.5V
1.5V
tPZH
VOM
tPHZ
0.25V
tPZL
VOM
tPLZ
0.25V
VOM =
VOH + VOL
2
≈ 1.5V
Figure 6. Driver Enable and Disable Timing Waveforms
NOTE 1: The input pulse is supplied by a generator with the following characteristics:
INPUT=250kHz, 50% duty cycle, t_r < 6.0ns, Z_o=50Ω.
NOTE 2: C includes probe and stray capacitance.
L
10/15/02
SP3486/3487 Low Power Quad RS485/422 Line Drivers
6
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