SP486EEP datasheet(5/11 Pages) SIPEX

Part #	SP486EEP

Description	Enhanced Quad RS-485/RS-422 Line Drivers

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Manufacturer	SIPEX [Sipex Corporation]

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5

SP486E/487EDS/06

SP486E/487E Enhanced Quad RS-485/RS-422 Line Drivers

Figure 4. Driver Propagation Delays

3V

0V

B

A

VO

–VO

VO

1

2

tr

tf

10%

90%

10%

VO

1

2

VDIFF = V(A) – V(B)

F = 1MHZ: tr < 10ns: tf < 10ns

tPLH

tPHL

DI

1.5V

AC PARAMETERS

V

CC = 5V±5%; typicals at 25°C; TAMB = 25°C unless otherwise noted.

PARAMETER

MIN.

TYP.

MAX.

UNIT

CONDITIONS

PROPAGATION DELAY

Driver Input to Output

R

DIFF = 54 Ohms, CL1= CL2=

100pF;

Figure 2

Low to High (t

PLH)

204060

ns

High to Low (t

PHL)

204060

ns

Differential Skew (t

SKEW)

5

15

ns

t

SKEW =

t

PLH - tPHL

Driver Rise Time (t

R)

10% to 90%

SP486E

20

ns

SP487E

20

ns

Driver Fall Time (t

F)

90% to 10%

SP486E

20

ns

SP487E

20

ns

DRIVER ENABLE

To Output High

60

110

ns

C

L = 100pF; Figures 3 and 5

(S

2 closed)

To Output Low

60

115

ns

C

L = 100pF; Figures 3 and 5

(S

1 closed)

DRIVER DISABLE

From Output Low

60

130

ns

C

L = 15pF; Figures 3 and 5

(S

1 closed)

From Output High

60

130

ns

C

L = 15pF; Figures 3 and 5

(S

2 closed)

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SP486EEP Datasheet(PDF) 5 Page - Sipex Corporation

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