SP3223B Datasheet, PDF (5/24 Pages) Sipex Corporation – Intelligent +3.0V to +5.5V RS-232 Transceivers

TYPICAL PERFORMANCE CHARACTERISTICS
Unless otherwise noted, the following performance characteristics apply for V = +3.3V, 250kbps data rate, all drivers
CC
loaded with 3KΩ, 0.1µF charge pump capacitors, and T_AMB = +25°C.
25
20
15
10
5
0
0
- Slew
+ Slew
1 Transmitter at 250Kbps
2 Transmitter at 15.6Kbps
All drivers loaded 3K + Load Cap
500 1000 2000 3000 4000 5000
Load Capacitance (pF)
40
35
30
250Kbps
120Kbps
25
20Kbps
20
15
10
5
0
0
1 Transmitter at full Data Rate
2 Transmitters at 15.5 Kbps
All Transmitters loades 3K + Load Cap
1000 2000 3000
4000
Load Capacitance (pF)
5000
Figure 7. Slew Rate VS. Load Capacitance for the
SP3243B
Figure 8. Supply Current VS. Load Capacitance when
Transmitting Data for the SP3243B
25
20
15
10
1 Transmitter at 250Kbps
2 Transmitters at 15.6Kbps
5
All drivers loaded with 3K // 1000pF
0
2.7
3
3.5
4
4.5
5
Supply Voltage (V_DC)
Figure 9. Supply Current VS. Supply Voltage for the
SP3243B
6
TxOUT +
4
2
0
-2
-4
TxOUT -
-6
2.7
3
3.5
4
4.5
5
Supply Voltage (V_DC)
Figure 10. Transmitter Output Voltage VS. Supply
Voltage for the SP3243B
Rev. 6/30/03
SP3223B/3243B +3.0V to +5.5V RS-232 Transceivers
5
© Copyright 2003 Sipex Corporation