SP339ECR1-L/TR 查看數據表（PDF） - Exar Corporation
零件编号
产品描述 (功能)
生产厂家
SP339ECR1-L/TR Datasheet PDF : 23 Pages
| |||
SP339E
REV. 1.0.4
RS-232/RS-485/RS-422 TRANSCEIVER WITH INTERNAL TERMINATION
FIGURE 11. RS-485/422 RECEIVER PROPAGATION DELAY
B
Rx
A
Rx Disable = 0V
B
A
tRPLH
VOUT
1.5V
VOUT
CL
+1V
0V
-1V
tRPHL
VOH
1.5V
VOL
FIGURE 12. RS-485/422 DRIVER PROPAGATION DELAY AND RISE/FALL TIMES
B
Tx Input
Tx
VOD
RL
CL
Tx Enable = VCC
A
Tx Input 3V
0V
B
VOD
(VA - VB)
A
VOD+
0V
VOD-
1.5V
tDPLH
1.5V
VOD
tSKEW = |tPHL ڏtPLH|
tDPHL
90%
10%
tDR
90%
10%
tDF
17
Share Link: 