TYPICAL PERFORMANCE CHARACTERISTICS
Unless otherwise noted, the following performance characteristics apply for VCC = +3.3V, 250kbps data rate, all drivers
loaded with 3KΩ, 0.1µF charge pump capacitors, and TAMB = +25°C.
30
25
20
15
10
5
6
4
- Slew
+ Slew
TxOUT +
2
0
-2
-4
-6
1 Transmitter at 250Kbps
1 Transmitter at 15.6Kbps
All drivers loaded 3K + Load Cap
TxOUT -
0
0
500 1000
2000 3000 4000 5000
0
1000
2000
3000
4000
5000
Load Capacitance (pF)
Load Capacitance (pF)
Figure 1. Transmitter Output Voltage VS. Load
Capacitance for the SP3223EB
Figure 2. Slew Rate VS. Load Capacitance for the
SP3223EB
35
30
20
15
250Kbps
25
125Kbps
20
10
15
20Kbps
1 Transmitter at 250Kbps
10
2 Transmitters at 15.6Kbps
5
1 Transmitter at 250Kbps
All drivers loaded with 3K // 1000pF
1 Transmitter at 15.6Kbps
5
All drivers loaded 3K + Load Cap
0
0
0
1000
2000
3000
4000
5000
2.7
3
3.5
4
4.5
5
Load Capacitance (pF)
Supply Voltage (V
)
DC
Figure 4. Supply Current VS. Supply Voltage for
the SP3243EB
Figure 3. Supply Current VS. Load Capacitance when
Transmitting Data for the SP3223EB
6
6
TxOUT +
4
4
TxOUT +
2
0
2
0
-2
-2
TxOUT -
-4
-6
-4
TxOUT -
-6
2.7
3
3.5
4
4.5
5
0
1000
2000
3000
4000
5000
Supply Voltage (V
)
DC
Load Capacitance (pF)
Figure 6. Transmitter Output Voltage VS. Load
Capacitance for the SP3243EB
Figure 5. Transmitter Output Voltage VS. Supply
Voltage for the SP3243EB
Date: 6/2/04
SP3223EB/3243EB +3.0V to +5.5V RS-232 Transceivers
© Copyright 2004 Sipex Corporation
4
SIPEX [ SIPEX CORPORATION ]
