SP3497EEN-L datasheet(5/17 Pages) EXAR

Part #	SP3497EEN-L

Description	HIGH SPEED 3.3V RS-485/RS-422 TRANSCEIVERS WITH /-15KV ESD PROTECTION AND ADVANCED FAILSAFE

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Manufacturer	EXAR [Exar Corporation]

Direct Link	http://www.exar.com

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SP3495E-3497E

5

REV. 1.0.0

HIGH SPEED +3.3V RS-485/RS-422 TRANSCEIVERS WITH +/-15KV ESD PROTECTION AND ADVANCED FAILSAFE

VIH

Logic Input Thresholds (DI, DE, RE)

2.0

V

Logic Input High

VIL

0.8

V

Logic Input Low

VHYS

Driver Input Hysteresis

100

mV

TA = 25°C

IIN

Logic Input Current (DI, DE and RE)10

uA

IN = 0V

-10

uA

IN = Vcc

Driver AC Characteristics

freq

Data Signaling Rate

32

Mbps

1/tUI, Duty Cycle 40 to 60%

tPLH

Driver Propagation Delay (low to

High)

511

24

ns

CL = 50pF, RL = 54Ω,

freq = 8MHz, Figures 6 and 7

tPHL

Driver Propagation Delay (High to

Low)

511

24

ns

CL = 50pF, RL = 54Ω,

freq = 8MHz, Figures 6 and 7

tR

Driver Rise Time

2.5

4.5

10

ns

CL = 50pF, RL = 54Ω,

freq = 8MHz, Figures 6 and 7

tF

Driver Fall time

2.5

4.5

10

ns

CL = 50pF, RL = 54Ω,

freq = 8MHz, Figures 6 and 7

|t

PLH-tPHL|

Differential Pulse Skew

3

ns

Figures 6 and 7

tOZH

Driver Enable to Output High

50

ns

CL = 50pF, RL = 500Ω, Figures

8 and 9

tOZL

Driver Enable to Outut Low

50

ns

CL = 50pF, RL = 500Ω, Figures

10 and 11

tOHZ

Driver Disable from Output High

50

ns

CL = 50pF, RL = 500Ω, Figures

8 and 9

tOLZ

Driver Disable from Output Low

50

ns

CL = 50pF, RL = 500Ω, Figures

10 and 11

tOZV

Shutdown to Driver Output Valid

6

us

CL = 50pF, RL = 500Ω

tSHDN

Time to Shutdown

50

600

ns

Note 2 and 3

RECEIVER DC CHARACTERISTICS

IIN

Input Current (A, B pins)

-290

500

uA

DE = 0, Vcc = 0 or 3.3V

VA or VB = 12V, other input 0V

VA or VB = -7V, other input 0V

VIH

Receiver Differential Thresholds

(VA - VB)

-85

-40

mV

-7V

≤ V

CM ≤ 12V, rising

VIL

-200

-125

mV

-7V

≤ V

CM ≤ 12V, falling

Receiver Input Hysteresis

25

mV

VCM = 0V

VOH

Receiver Output Voltage High

2.4

V

IOUT = -8mA, VID = 200mV

VOL

Receiver Output Voltage Low

0.4

V

IOUT = 8mA, VID = -200mV

UNLESS OTHERWISE NOTED: VCC = +3.0V TO +3.6V WITH TA FROM -40

OC TO +85OC. TYPICAL VALUES ARE AT

VCC = +3.3V AND 25

OC.

SYMBOL

PARAMETERS

MIN.TYP.

MAX.UNITS

CONDITIONS

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