SP3238EDS/04

SP3238E +3.0V to +5.5V RS-232 Transceivers

© Copyright 1999 Sipex Corporation

4

SPECIFICATIONS (continued)

Unless otherwise noted, the following specifications apply for V

Typical values apply at V

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

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

5

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

5

1

.

0

5

1

.

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

+