Date: 7/21/04

SP3221E +3.0V to +5.5V RS-232 Transceiver

© Copyright 2004 Sipex Corporation

4

SPECIFICATIONS (continued)

Unless otherwise noted, the following specifications apply for V

Typical values apply at V

Figure 3. Supply Current VS. Load Capacitance when

Transmitting Data

Figure 1. Transmitter Output Voltage VS. Load

Capacitance

Figure 2. Slew Rate VS. Load Capacitance

TYPICAL PERFORMANCE CHARACTERISTICS

Unless otherwise noted, the following performance characteristics apply for V

loaded with 3K

Ω, 0.1µF charge pump capacitors, and T

6

4

2

0

-2

-4

-6

Load Capacitance [pF]

Vout+

Vout-

500

1000

1500

0

14

12

10

8

6

4

2

0

Load Capacitance [pF]

+Slew

-Slew

0

500

1000

1500

2000

40

35

30

25

20

15

10

5

0

Load Capacitance [pF]

118KHz

60KHz

10KHz

0

500

1000

1500

2000

R

E

T

E

M

A

R

A

P.

N

I

M.

P

Y

T.

X

A

MS

T

I

N

US

N

O

I

T

I

D

N

O

C

S

C

I

T

S

I

R

E

T

C

A

R

A

H

C

G

N

I

M

I

T

e

t

a

R

a

t

a

D

m

u

m

i

x

a

M0

2

10

4

2s

p

b

kR

L

K

3

=

Ω C

,

L

e

v

i

t

c

a

r

e

v

i

r

d

e

n

o

,

F

p

0

0

0

1

=

y

a

l

e

D

n

o

i

t

a

g

a

p

o

r

P

r

e

v

i

e

c

e

R

t

L

H

P

t

H

L

P

3

.

0

3

.

0

µs

C

,

t

u

p

t

u

o

r

e

v

i

e

c

e

R

o

t

t

u

p

n

i

r

e

v

i

e

c

e

R

L

F

p

0

5

1

=

e

m

i

T

e

l

b

a

n

E

t

u

p

t

u

O

r

e

v

i

e

c

e

R0

0

2s

nn

o

i

t

a

r

e

p

o

l

a

m

r

o

N

e

m

i

T

e

l

b

a

s

i

D

t

u

p

t

u

O

r

e

v

i

e

c

e

R0

0

2s

nn

o

i

t

a

r

e

p

o

l

a

m

r

o

N

w

e

k

S

r

e

v

i

r

D0

0

10

0

5s

nt

|

L

H

P

t

-

H

L

P

T

,

|

B

M

A

5

2

=

w

e

k

S

r

e

v

i

e

c

e

R0

0

20

0

0

1s

nt

|

L

H

P

t

-

H

L

P

|

e

t

a

R

w

e

l

S

n

o

i

g

e

R

-

n

o

i

t

i

s

n

a

r

T0

3/

V

µsV

C

C

R

,

V

3

.

3

=

L

K

3

=

Ω T

,

B

M

A

5

2

=

o

,

C

r

o

V

0

.

3

+

o

t

V

0

.

3

-

m

o

r

f

n

e

k

a

t

s

t

n

e

m

e

r

u

s

a

e

m

V

0

.

3

-

o

t

V

0

.

3

+