4

Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com

SP3220E_EB_EU_101_060311

Unless otherwise noted, the following performance characteristics apply for V

drivers loaded with 3kΩ, 0.1µF charge pump capacitors, and T

Figure 2. Transmitter Output Voltage vs Load

Capacitance for the SP3220EB.

Figure 1. Icc vs Load Capacitance for the

SP3220EB.

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

Figure 3. Transmitter Output Voltage vs Supply

Voltage for the SP3220EB.

TYPICAL PERFORMANCE CHARACTERISTICS

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 V oltage (V)

6

4

2

0

-2

-4

-6

TxOUT+

TxOUT-

Figure 4. Supply Current vs Supply Voltage for the

SP3220EB.

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

Figure 5. Slew Rate vs Load Capacitance for the

SP3220EB.

Figure 6. Supply Current vs Supply Voltage for the

SP3220EU.

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