MAX563CWN Maxim Integrated Products, MAX563CWN Datasheet - Page 6

• Manufacturer Part Number: MAX563CWN
• Description: IC TXRX RS232 DUAL 3.3V 18-SOIC
• Manufacturer: Maxim Integrated Products
• Type: Transceiverr

Specifications of MAX563CWN

• Number Of Drivers/receivers: 2/2
• Protocol: RS562
• Voltage - Supply: 3 V ~ 3.6 V
• Mounting Type: Surface Mount
• Package / Case: 18-SOIC (7.5mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

+3.3V-Powered, EIA/TIA-562 Dual Transceiver
with Receivers Active in Shutdown
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.
Use a capacitor with the same value as the charge-
pump capacitors.
Figure 4. Receiver Output Enable and Disable Timing
6
__________Applications Information
_______________________________________________________________________________________
INPUT
EN
Charge-Pump Capacitor Selection
C
RECEIVER
INPUT
RECEIVER
OUTPUTS
OUTPUT
L
V
EN
= 150pF
CC
0V
Power-Supply Decoupling
0V
V
CC
+0.4V
V
CC
V
- 0.6V
t
V
OL
ER
OH
+ 0.1V
- 0.1V
R
t
DR
L
= 1k
0.5V
CC
Figure 5. Transmitter Output Disable Timing
A. TIMING DIAGRAM
B. TEST CIRCUIT
1 OR 0
SHDN
V+
V-
+3V
T
X
3k
t
DT
0V
+3.7V
-3.7V
50pF
0V