SP3223EEA-L-TR Datasheet, PDF (6/21 Pages) Exar Corporation – Intelligent +3.0V to +5.5V RS-232 Transceivers

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
TxOUT +
2
0
-2
TxOUT -
-4
-6
0
1000 2000 3000 4000 5000
Load Capacitance (pF)
30
25
20
15
10
5
0
0
- Slew
+ Slew
1 Transmitter at 250Kbps
1 Transmitter at 15.6Kbps
All drivers loaded 3K + Load Cap
500 1000 2000 3000 4000 5000
Load Capacitance (pF)
Figure 2. Transmitter Output Voltage VS. Load
Capacitance for the SP3223EB
Figure 3. Slew Rate VS. Load Capacitance for the
SP3223EB
35
30
25
20
15
10
5
0
0
250Kbps
125Kbps
20Kbps
1 Transmitter at 250Kbps
1 Transmitter at 15.6Kbps
All drivers loaded 3K + Load Cap
1000 2000 3000 4000
Load Capacitance (pF)
5000
Figure 4. Supply Current VS. Load Capacitance
when Transmitting Data for the SP3223EB
20
15
10
1 Transmitter at 250Kbps
5
2 Transmitters at 15.6Kbps
All drivers loaded with 3K // 1000pF
0
2.7
3
3.5
4
4.5
5
S^Su^up^pply ^VV^oo^ltl^ata^gg^ee^(V(V^dc_D⁾ _C)
Figure 5. Supply Current VS. Supply Voltage for
the SP3223EB
6
Tx OUT +
4
2
0
-2
-4
Tx OUT -
-6
2.7
3
3.5
4
4.5
5
SSuupply VVooltlataggee(V(dVc_D) _C)
Figure 6. Transmitter Output Voltage VS. Supply
Voltage for the SP3223EB
Exar Corporation 48720 Kato Road, Fremont CA, 94538 • [phone] • www.exar.com

SP3223E/EB/EU_101_062712