SP238A Datasheet, PDF (10/12 Pages) Exar Corporation – +5V Powered Multi-Channel RS-232 Drivers/Receivers

Typical Performance Characteristics
Figure 3, Charge pump waveforms with no
load (Ch1 = C1+, Ch2 = C2+, Ch3 = V+, Ch4
= V-).
Figure 6, Charge pump outputs at
start up (Ch1 = Vcc, Ch2 = V+, Ch3
= V-).
Figure 4, Charge pump waveforms when
fully loaded with 3k ohms (Ch1 = C1+, Ch2
= C2+, Ch3 = V+, Ch4 = V-).
Figure 5, Loopback results at 10kHz and
2500pF load (Ch1 = TXin, Ch2 = TXout/
RXin, Ch3 = RXout).
Exar Corporation 48720 Kato Road, Fremont CA, 94538 • [phone] • www.exar.com
10
SP238A_100_071410