SP3220EBEA-L-TR Datasheet, PDF (4/20 Pages) Exar Corporation – 3.0V to +5.5V RS-232 Driver/Receiver Pair

TYPICAL PERFORMANCE CHARACTERISTICS
Unless otherwise noted, the following performance characteristics apply for V_CC = +3.3V, 250kbps data rate, all
drivers loaded with 3kΩ, 0.1µF charge pump capacitors, and T_AMB = +25°C.
30
25
20
15
10
T1 at Full Data Rate
T2 at 1/16 Full Data Rate
T1+T2 Loaded with 3k/CLoad
125Kbps
60Kbps
20Kbps
5
0
0
1000 2000 3000 4000 5000
Load Capacitance (pF)
Figure 1. Icc vs Load Capacitance for the
SP3220EB.
6
4
2
T1 at 250Kbps
0
TxOUT+
-2
-4
TxOUT-
-6
0
1000 2000 3000 4000
Load Capacitance (pF)
5000
Figure 2. Transmitter Output Voltage vs Load
Capacitance for the SP3220EB.
6
TxOUT+
4
2
0
-2
-4
TxOUT-
-6
2.7
3
3.5
4
4.5
5
Supply V oltage (V)
Figure 3. Transmitter Output Voltage vs Supply
Voltage for the SP3220EB.
12
10
8
6
4
2
T1 Loaded with 3K // 1000pf @ 250Kbps
0
2.7
3
3.5
4
4.5
5
Supply Voltage (V)
Figure 4. Supply Current vs Supply Voltage for the
SP3220EB.
25
- Slew
20
+ Slew
15
10
5
0 _{0 500 1000 2000 3000 4000 5000}
Load Capacitance (pF)
Figure 5. Slew Rate vs Load Capacitance for the
SP3220EB.
40
30
2Mbps
20
1Mbps
500Kbps
10
0
0 250 500 1000 2000 3000 4000
Load Capacitance (pF)
Figure 6. Supply Current vs Supply Voltage for the
SP3220EU.
Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com
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SP3220E_EB_EU_102_102016