5

Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 50-668-707 • www.exar.com

SP3490_349_02_0270

PARAMETERS

MIN.

TYP.

MAX.

UNITS CONDITIONS

SP3491 RECEIVER

DC Characteristics

Differential Input Threshold

-0.2

+0.2

Volts

-7V ≤ V

Input Hysteresis

25

mV

V

Output Voltage HIGH

Vcc-0.4

Volts

I

Output Voltage LOW

0.4

Volts

I

Three-State ( High Impedance)

Output Current

+/-

µA

0V ≤ V

Input Resistance

2

5

kΩ

-7V ≤ V

Input Current (A, B); V

+.0

mA

DE = 0V, V

V

Input Current (A, B); V

-0.8

mA

DE = 0V, V

V

Short Circuit Current

60

mA

0V ≤ V

SP3491 RECEIVER

AC Characteristics

Max. Transmission Rate

0

Mbps REB = 0V, DE = 0V

Receiver Input to Output, t

PLH

40

70

20

ns

Figures 6 and 2

Receiver Input to Output, t

PLH

85

ns

T

6 and 2

Receiver Input to Output, t

PHL

40

70

20

ns

Figures 6 and 2

Receiver Input to Output, t

PHL

85

ns

T

6 and 2

Differential Receiver Skew

4

ns

|t

Figures 6 and 2

Receiver Enable to Output

LOW

65

50

ns

Figures 7 and 3; S

open

Receiver Enable to Output

HIGH

65

50

ns

Figures 7 and 3; S

open

Receiver Disable from LOW

65

200

ns

Figures 7 and 3; S

open

Receiver Disable from HIGH

65

200

ns

Figures 7 and 3; S

open

POWER REQUIREMENTS

Supply Voltage

+3.0

+3.6

V

Supply Current

000

2000

µA

REB, D = 0V or V

Supply Current

800

500

µA

DE = 0V

ESD Protection for R, D, DE,

REB, A, B, Y and Z pins

+/-2

kV

Human Body Model

ELECTRICAL CHARACTERISTICS

T