FIGURE 11. RS-485/422 RECEIVER P
參數(shù)資料
型號: SP339EER1-L
廠商: Exar Corporation
文件頁數(shù): 8/23頁
文件大?。?/td> 0K
描述: IC TXRX RS232/485 TERM 40QFN
特色產(chǎn)品: SP339 Multiprotocol Transceiver
標準包裝: 490
類型: 收發(fā)器
驅(qū)動器/接收器數(shù): 3/5
規(guī)程: RS232,RS422,RS485
電源電壓: 3.3V,5V
安裝類型: 表面貼裝
封裝/外殼: 40-VFQFN 裸露焊盤
供應(yīng)商設(shè)備封裝: 40-QFN(6x6)
包裝: 托盤
其它名稱: 1016-1704
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|
SP339E
16
RS-232/RS-485/RS-422 TRANSCEIVER WITH INTERNAL TERMINATION
REV. 1.0.3
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