SP3238EEA-L Datasheet, PDF (4/20 Pages) Exar Corporation – Intelligent 3.0V to 5.5V RS-232 Transceiver

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.
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