參數(shù)資料
型號(hào)： SP3223HCY
英文描述： SOCKET, 4WAY; Connector type:Rectangular; Gender:Socket; Ways, No. of:4; Termination method:Solder; Material, contact:Copper Alloy; Plating, contact:Silver; Connector insert type:Female; Contact style:Socket; Colour:Green; Insulation RoHS Compliant: Yes
中文描述： 高速智能3.0V至5.5V的RS - 232收發(fā)器
文件頁數(shù)： 13/23頁
文件大?。?/td> 164K
代理商： SP3223HCY
Rev. 6/30/03
SP3223H +3.0V to +5.5V RS-232 Transceivers
13
Copyright 2003 Sipex Corporation
Since both V
+
and V
–
are separately generated
from V
, in a no–load condition V
+
and V
–
will
be symmetrical. Older charge pump approaches
that generate V
–
from V
+
will show a decrease in
the magnitude of V
–
compared to V
+
due to the
inherent inefficiencies in the design.
Figure 15. Auto-Online Timing Waveforms
The clock rate for the charge pump typically
operates at 250kHz. The external capacitors can
be as low as 0.1
μ
F with a 16V breakdown
voltage rating.
RECEIVER
RS-232 INPUT
VOLTAGES
STATUS
+5V
0V
-5V
t
STSL
t
STSH
t
ONLINE
V
CC
0V
DRIVER
RS-232 OUTPUT
VOLTAGES
0V
+2.7V
-2.7V
S
H
U
T
D
O
W
N
相關(guān)PDF資料
PDF描述
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