SP3222EB datasheet(4/25 Pages) SIPEX

4 / 25 page

Date:11/02/05

SP3222EB/SP3232EB True +3.0V to +5.5V RS-232 Transceivers

Date:02/27/05

SP3222EB/3232EB True +3.0 to +5.5V RS-232 Transceivers

Figure 1. Transmitter Output Voltage vs Load

Capacitance.

Figure 2. Slew Rate vs Load Capacitance.

Figure 3. Supply Current vs Load Capacitance when

Transmitting Data.

Unless otherwise noted, the following performance characteristics apply for V

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

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

AMB = +25°C.

500

1000

2000 3000

4000

5000

Load Capacitance (pF)

- Slew

+ Slew

T1 at 250Kbps

T2 at 15.6Kbps

All TX loaded 3K // CLoad

Figure 4. Supply Current vs Supply Voltage.

-2

-4

-6

2.7

3.5

4.5

Supply Voltage (V)

TxOUT -

TxOUT +

T1 at 250Kbps

T2 at 15.6Kbps

All TX loaded 3K // 1000 pF

Figure 5. Transmitter Output Voltage vs Supply

Voltage.

Load Capacitance (pF)

1000

2000

3000

4000

5000

250Kbps

125Kbps

20Kbps

T1 at Full Data Rate

T2 at 1/16 Data Rate

All TX loaded 3K // CLoad

-2

-4

-6

1000

2000

3000

4000

5000

TxOUT +

TxOUT -

Load Capacitance (pF)

T1 at 250Kbps

T2 at 15.6Kbps

All TX loaded 3K // CLoad

2.7

3.5

4.5

Supply Voltage (V)

1 Transmitter at 250Kbps

1 Transmitter at 15.6Kbps

All transmitters loaded with 3K // 1000pf

TYPICAL PERFORMANCE CHARACTERISTICS

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