SP3222EU_06 Datasheet, PDF (4/20 Pages) Sipex Corporation – 3.3V, 1000 Kbps RS-232 Transceivers

TYPICAL PERFORMANCE CHARACTERISTICS
Unless otherwise noted, the following performance characteristics apply for V_CC = +3.3V, 1000kbps data rates, all drivers
loaded with 3kΩ, 0.1µF charge pump capacitors, and T_AMB = +25°C.
6
4
T1 at 1Mbps
2
T2 at 62.5Kbps
0
-2
-4
-6
0
250
500
1000
Load Capacitance (pF)
1500
Figure 1. Transmitter Output Voltage vs Load
Capacitance for the SP3222EU and the SP3232EU
120
100
80 60
40
20
0
0
T1 at 1Mbps
T2 at 62.5Kbps
All TX loaded 3K // CLoad
250 500 1000 1500
Load Capacitance (pF)
2000
Figure 2. Slew Rate vs Load Capacitance for the
SP3222EU and the SP3232EU
35
30
20
15
10
5
0
0
T1 at 1Mbps
T2 at 62.5Kbps
250
500
1000
Load Capacitance (pF)
1500
20
15
T1 at Mbps
10
T2 at 62.5Kbps
5
0
2.7
3
3.5
4
4.5
5
Supply Voltage (V)
Figure 3. Supply Current vs Load Capacitance when
Transmitting Data for the SP3222EU and the SP3232EU
Figure 4. Supply Current vs Supply Voltage for the
SP3222EU and the SP3232EU
6
4
2
T1 at 1Mbps
0
T2 at 62.5Kbps
-2
-4
-6
2.7
3
3.5
4
4.5
5
Supply Voltage (V)
Figure 5. Transmitter Output Voltage vs Supply Voltage
for the SP3222EU and the SP3232EU
200
150
100
50
0
0
T1 at 500Kbps
T2 at 31.2Kbps
All TX loaded 3K // CLoad
250 500 1000 1500
Load Capacitance (pF)
2000
Figure 6. Transmitter Skew vs Load Capacitance for the
SP3222EU and the SP3232EU
Date: 02/31/06
SP3222EU, SP3232EU 3.3V, 1000Kbps RS-232 Transceivers
4
© Copyright 2006 Sipex Corporation