Date: 8/30/05

SP3220E/EB/EU High ESD RS-232 Driver/Receiver

© Copyright 2005 Sipex Corporation



Date: 8/22/05

SP3220E/EB/EU High ESD RS-232 Driver/Receiver

© Copyright 2005 Sipex Corporation

4

TYPICAL PERFORMANCE CHARACTERISTICS

Unless otherwise noted, the following performance characteristics apply for V

loaded with 3k , 0.1µF charge pump capacitors, and T

30

25

20

15

10

5

0

Load Capacitance (pF)

0

1000

2000

3000

4000

5000

125Kbps

20Kbps

60Kbps

T1 at Full Data Rate

T2 at 1/16 Full Data Rate

T1+T2 Loaded with 3k/CLoad

6

4

2

0

-2

-4

-6

0

1000

2000

3000

4000

5000

TxOUT +

TxOUT -

Load Capacitance (pF)

T1 at 250Kbps

2.7

3

3.5

4

4.5

5

Supply Voltage (V)

6

4

2

0

-2

-4

-6

TxOUT +

TxOUT -

12

10

8

6

4

2

0

2.7

3

3.5

4

4.5

5

Supply Voltage (V)

T1 Loaded with 3K // 1000pf @ 250Kbps

25

20

15

10

5

0

0

500

1000

2000 3000

4000

5000

Load Capacitance (pF)

- Slew

+ Slew

40

30

20

10

0

0

250

500

1000 2000

3000

4000

Load Capacitance (pF)

500Kbps

1Mbps

2Mbps

Figure 1. I

Figure 2. Transmitter Output Voltage vs Load Capaci-

tance for the SP3220EB.

Figure 3. Transmitter Output Voltage vs Supply Voltage

for the SP3220EB.

Figure 4. Supply Current vs Supply Voltage for the

SP3220EB.

Figure 5. Slew Rate vs Load Capacitance for the

SP3220EB.

Figure 4. Supply Current vs Supply Voltage for the

SP3220EU.

5

Date: 8/22/05

SP3220E/EB/EU High ESD RS-232 Driver/Receiver

© Copyright 2005 Sipex Corporation

TYPICAL PERFORMANCE CHARACTERISTICS: Continued

Unless otherwise noted, the following performance characteristics apply for V

loaded with 3k , 0.1µF charge pump capacitors, and T

Figure 7. Transmitter Output Voltage vs Load Capaci-

tance for the SP3220EU.

Figure 8. Transmitter Output Voltage vs Supply Voltage

for the SP3220EU.

Figure 9. Supply Current vs Supply Voltage for the

SP3220EU.

0

250

500

1000

1500

2000

Load Capacitance (pF)

6

4

2

0

-2

-4

-6

2Mbps

1.5Mbps

1Mbps

2Mbps

1.5Mbps

1Mbps

2.5

2.7

3

3.5

4

4.5

5

Supply Voltage (V)

6

4

2

0

-2

-4

-6

TxOUT +

TxOUT -

16

14

12

10

8

6

4

2

0

2.7

3

3.5

4

4.5

5

Supply Voltage (V)

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