sp3222eey-tr Exar Corporation, sp3222eey-tr Datasheet - Page 9

• Manufacturer Part Number: sp3222eey-tr
• Description: Sp3232e -true +3.0v To +5.5v Rs-232 Transceivers
• Manufacturer: Exar Corporation

Date: 8/22/05
Figure 8. SP3222E/3232E Driver Loopback Test Circuit
Figure 9. Driver Loopback Test Results at 120kbps
R1 OUT
T1 OUT
T1 IN
1
2
3
Ch1
Ch3
5.00V
5.00V
[
Ch2 5.00V M 5.00µs Ch1
SP3222E, SP3232E True +3.0 to +5.0V RS-232 Transceivers
OUTPUTS
INPUTS
LOGIC
LOGIC
C2
C1
C5
T
T
T
T
+
+
+
0.1µF
0.1µF
0.1µF
]
C2-
TxIN
C1+
C1-
C2+
RxOUT
EN
0V
SP3222E
SP3232E
V
V
9
GND
CC
CC
Figure 10. Driver Loopback Test Results at 235kbps
5kΩ
R1 OUT
T1 OUT
T1 IN
TxOUT
*SHDN
* SP3222 only
RxIN
V+
V-
1
2
3
Ch1
Ch3
1000pF
V
5.00V
5.00V
C3
C4
CC
[
+
+
Ch2 5.00V M 2.50µs Ch1
0.1µF
0.1µF
© Copyright 2005 Sipex Corporation
T
T
T
T
]
0V