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XR3070-78X Datasheet, PDF (13/24 Pages) Exar Corporation – LOW POWER 18V TOLERANT RS-485/RS-422 +3.3V TRANSCEIVERS
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XR3070-78X
REV. 1.0.2
LOW POWER 18V TOLERANT RS-485/RS-422 +3.3V TRANSCEIVERS
FIGURE 8. DRIVER ENABLE AND DISABLE TIMING TEST CIRCUITS & TIMING DIAGRAMS
Testing Z: DI = 0V
D
Testing Y: DI = VCC
DE
Z
RL
Y
VOUT
CL
3V
DE
0V
VOH
VOUT
VOL
1.5V
tDZH
VOH + VOL
2
Testing Z: DI = VCC
D
Testing Y: DI = 0V
DE
1.5V
tDHZ
VOH - 0.25V
VCC
Z
RL
VOUT
CL
Y
3V
DE
0V
VOH
VOUT
VOL
1.5V
tDZL
VOH + VOL
2
1.5V
tDLZ
VOL + 0.25V
13
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