參數(shù)資料
型號(hào): MAX563
廠商: Maxim Integrated Products, Inc.
英文描述: +3.3V-Powered, EIA/TIA-562 Dual Transceiver with Receivers Active in Shutdown(3.3V,雙組EIA/TIA-562接收器)
中文描述: +3.3V供電、EIA TIA 562雙收發(fā)器,關(guān)斷后接收器保持有效
文件頁(yè)數(shù): 6/8頁(yè)
文件大小: 83K
代理商: MAX563
__________Applic ations Information
Charge-Pump Capac itor S elec tion
Normally, 0.1μF capacitors can be used for all loca-
tions. To reduce output ripple, increase the values of
the V+ and V- capacitors. If your capacitors have a
very wide tolerance, consider using a nominal value a
little larger than 0.1μF to ensure that the actual capaci-
tance does not fall below about 80nF. For circuits
designed to operate over a wide range of tempera-
tures, consider using slightly larger capacitors to com-
pensate for any loss of capacitance at temperature
extremes. No advantage is gained by using values
larger than 10μF.
Power-S upply Dec oupling
Use a capacitor with the same value as the charge-
pump capacitors.
6
_______________________________________________________________________________________
M
+3.3V-Powered, EIA/T IA-562 Dual Transc eiver
with Rec eivers Ac tive in S hutdown
V
CC
- 0.6V
EN
INPUT
t
ER
0.5V
CC
RECEIVER
OUTPUT
C
L
= 150pF
RECEIVER
OUTPUTS
t
DR
V
OH
- 0.1V
V
OL
+ 0.1V
R
L
= 1k
+0.4V
0V
V
CC
V
CC
EN
INPUT
0V
+3V
0V
V+
V-
+3.7V
-3.7V
0V
1 OR 0
T
X
3k
50pF
A. TIMING DIAGRAM
B. TEST CIRCUIT
t
DT
SHDN
Figure 4. Receiver Output Enable and Disable Timing
Figure 5. Transmitter Output Disable Timing
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