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SP339B Datasheet(PDF) 17 Page - Exar Corporation

Part # SP339B
Description  TRANSCEIVER WITH INTERNAL TERMINATION
PDF  23 Pages
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Manufacturer  EXAR [Exar Corporation]
Direct Link  http://www.exar.com
Logo EXAR - Exar Corporation

SP339B Datasheet(HTML) 17 Page - Exar Corporation

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FIGURE 11. RS-485/422 RECEIVER PROPAGATION DELAY
CL
B
A
Rx
Rx Disable = 0V
VOUT
B
A
VOUT
1.5V
tRPLH
tRPHL
+1V
0V
-1V
VOH
VOL
1.5V
FIGURE 12. RS-485/422 DRIVER PROPAGATION DELAY AND RISE/FALL TIMES
Tx
VOD
RL
CL
B
A
Tx Enable = VCC
Tx Input
3V
0V
B
A
VOD+
0V
VOD-
VOD
1.5V
90%
10%
90%
10%
tDR
tDF
1.5V
tDPLH
tDPHL
Tx Input
VOD
(VA -VB)
tSKEW =|tPHL – tPLH|
SP339B
17
REV. 1.0.0
RS-232/RS-485/RS-422 TRANSCEIVER WITH INTERNAL TERMINATION



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