SP3220EB datasheet(4/19 Pages) SIPEX

4 / 19 page

Rev: A Date:12/11/03

SP3220EB/EU +3.0 to +5.0V RS-232 Transceivers

TYPICAL PERFORMANCE CHARACTERISTICS

Unless otherwise noted, the following performance characteristics apply for V

CC = +3.3V, 250kbps data rates, all drivers

loaded with 3k

Ω, 0.1µF charge pump capacitors, and T

AMB = +25°C.

Load Capacitance (pF)

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

-2

-4

-6

1000

2000

3000

4000

5000

TxOUT +

TxOUT -

Load Capacitance (pF)

T1 at 250Kbps

2.7

3.5

4.5

Supply Voltage (V)

-2

-4

-6

TxOUT +

TxOUT -

2.7

3.5

4.5

Supply Voltage (V)

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

500

1000

2000

3000

4000

5000

Load Capacitance (pF)

- Slew

+ Slew

250

500

1000

2000

3000

4000

Load Capacitance (pF)

500Kbps

1Mbps

2Mbps

Figure 1. I

CC vs Load Capacitance for the SP3220EB.

Figure 2. Transmiter Output Voltage vs Load Capacitance

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.

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