SP3223U datasheet(5/24 Pages) SIPEX

5 / 24 page

Date: 5/25/04

SP3223U/3243U +3.0V to +5.5V RS-232 Transceivers

Unless otherwise noted, the following performance characteristics apply for V

CC = +3.3V, 1000kbps data rate, all drivers

loaded with 3k

Ω, 0.1µF charge pump capacitors, and T

AMB = +25°C.

Figure 8. Slew Rate VS. Load Capacitance for the

SP3243U

Figure 10. Supply Current VS. Supply Voltage for the

SP3243U

Figure 7. Transmitter Output Voltage VS. Load

Capacitance for the SP3243U

Figure 9. Supply Current VS. Load Capacitance for the

SP3243U

250

500

1000

1500

2000

Load Capacitance (pF)

-2

-4

-6

1 TX at full data rate

2 TX’s at1/16 data rate

2Mbps

1.5Mbps

1Mbps

2Mbps

1.5Mbps

1Mbps

250

500

1000

1500

2000

Load Capacitance (pF)

120

100

Slew +

Slew -

1 TX at 1Mbps

2 TX’s at 62.5Kbps

All TX loaded 3K // CLoad

250

500

1000

1500

Load Capacitance (pF)

1 TX at full data rate

2 TX’s at 1/16 data rate

All TX loaded 3K // CLoad

2 Mbps

1.5 Mbps

1 Mbps

2.7

3.5

4.5

Supply Voltage (V)

1 Driver at 1Mbps

Other Drivers at 62.5Kbps

All Drivers Loaded with 3K // 250pF

TYPICAL PERFORMANCE CHARACTERISTICS

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