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SP3238ECA-L-TR Datasheet, PDF (4/21 Pages) Exar Corporation – Intelligent +3.0V to +5.5V RS-232 Transceiver | |||
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TYPICAL PERFORMANCE CHARACTERISTICS
Unless otherwise noted, the following performance characteristics apply for VCC = +3.3V, 250kbps data rate, all
drivers loaded with 3kâ¦, 0.1µF charge pump capacitors, and TAMB = +25°C.
6
4
2
VOH
0
-2 0
1000 2000 3000 4000 5000
VOL
-4
-6
pF
Figure 1. Transmitter Output Voltage VS. Load
Capacitance
25
20
15
10
5
0
0
POS. SR
NEG SR
1000
2000 3000
pF
4000
5000
Figure 2. Slew Rate VS. Load Capacitance
60
50
40
250Kbps
30
120Kbps
20
20Kbps
10
0
0
1000 2000 3000 4000 5000
pF
Figure 3. Supply Current VS. Load Capacitance
when Transmitting Data
Exar Corporation 48720 Kato Road, Fremont CA, 94538 ⢠510-668-7017 ⢠www.exar.com
SP3238E_100_020111
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