SP3220B 데이터 시트보기 (PDF) - Signal Processing Technologies

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SP3220B

High Speed +3.0V to +5.5V RS-232 Driver/Receiver Pair

Signal Processing Technologies 

TYPICAL PERFORMANCE CHARACTERISTICS: Continued

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

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

6

4

2Mbps 1.5Mbps

1Mbps

2

0

-2

-4

2Mbps 1.5Mbps

1Mbps

-6

0

250

500

1000

1500 2000

Load Capacitance (pF)

6

4

2

0

-2

-4

-6

2.5 2.7

TxOUT +

TxOUT -

3

3.5

4

Supply Voltage (V)

4.5 5

Figure 7. Transmitter Output Voltage vs Load Capaci-

tance for the SP3220U.

Figure 8. Transmiter Output Voltage vs Supply Voltage

for the SP3220U.

16

14

12

10

8

6

4

T1 Loaded with 3K // 1000pf @1Mbps

2

0

2.7

3

3.5

4

4.5

5

Supply Voltage (V)

Figure 9. Supply Current vs Supply Voltage for the

SP3220U.

Rev. 7/8/03

SP3220B/U +3.0 to +5.0V RS-232 Transceivers

5

© Copyright 2003 Sipex Corporation

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