SP3223EB データシートの表示（PDF） - Signal Processing Technologies

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SP3223EB

High Speed Intelligent +3.0V to +5.5V RS-232 Transceivers

Signal Processing Technologies 

TYPICAL PERFORMANCE CHARACTERISTICS

Unless otherwise noted, the following performance characteristics apply for VCC = +3.3V, 250kbps data rate, all drivers

loaded with 3KΩ, 0.1µF charge pump capacitors, and TAMB = +25°C.

25

20

15

10

5

0

0

- Slew

+ Slew

1 Transmitter at 250Kbps

2 Transmitter at 15.6Kbps

All drivers loaded 3K + Load Cap

500 1000 2000 3000 4000 5000

Load Capacitance (pF)

40

35

30

250Kbps

120Kbps

25

20Kbps

20

15

10

5

0

0

1 Transmitter at full Data Rate

2 Transmitters at 15.5 Kbps

All Transmitters loades 3K + Load Cap

1000 2000 3000

4000

Load Capacitance (pF)

5000

Figure 7. Slew Rate VS. Load Capacitance for the

SP3243EB

Figure 8. Supply Current VS. Load Capacitance when

Transmitting Data for the SP3243EB

25

20

15

10

1 Transmitter at 250Kbps

2 Transmitters at 15.6Kbps

5

All drivers loaded with 3K // 1000pF

0

2.7

3

3.5

4

4.5

5

Supply Voltage (VDC)

Figure 9. Supply Current VS. Supply Voltage for the

SP3243EB

6

TxOUT +

4

2

0

-2

-4

TxOUT -

-6

2.7

3

3.5

4

4.5

5

Supply Voltage (VDC)

Figure 10. Transmitter Output Voltage VS. Supply

Voltage for the SP3243EB

Date: 6/2/04

SP3223EB/3243EB +3.0V to +5.5V RS-232 Transceivers

5

© Copyright 2004 Sipex Corporation

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