參數(shù)資料
型號: SP310ECA
元件分類: RS-232
英文描述: 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors
中文描述: 5V的高速RS - 232收發(fā)器與0.1uF電容
文件頁數(shù): 7/15頁
文件大?。?/td> 126K
代理商: SP310ECA
Rev. 06/20/02
SP202E Series High Performance RS232 Transceivers
Copyright 2002 Sipex Corporation
7
Figure 6. Charge Pump Waveforms
+10V
a) C
2
+
GND
GND
b) C
2
–10V
Figure 7. Charge Pump — Phase 3
V
CC
= +5V
–5V
+5V
–5V
V
SS
Storage Capacitor
V
DD
Storage Capacitor
C
1
C
2
C
3
C
4
+
+
+
+
Figure 8. Charge Pump — Phase 4
V
CC
= +5V
+10V
V
SS
Storage Capacitor
V
DD
Storage Capacitor
C
1
C
2
C
3
C
4
+
+
+
+
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.
The clock rate for the charge pump typically
operates at 15kHz. The external capacitors can
be as low as 0.1
μ
F with a 16V breakdown
voltage rating.
Shutdown (SD) and Enable (EN) for the
SP310E and SP312E
Both the
SP310E
and
SP312E
have a shutdown/
standby mode to conserve power in battery-pow-
ered systems. To activate the shutdown mode,
which stops the operation of the charge pump, a
logic “0” is applied to the appropriate control line.
For the
SP310E
, this control line is ON/OFF (pin
18). Activating the shutdown mode also puts the
相關(guān)PDF資料
PDF描述
SP202EEN 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors
SP202EEP 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors
SP202EET 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors
SP310E 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors
SP312E 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors
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