SP503 View Datasheet(PDF) - Exar Corporation

Part Name

Description

Manufacturer

SP503

Multiprotocol Transceiver

Exar Corporation 

ELECTRICAL CHARACTERISTICS

TMIN to TMAX @ Vcc = +5V ±5% unless otherwise noted.

MIN.

TYP.

LOGIC INPUTS

VIL

VIH

LOGIC OUTPUTS

VOL

VOH

RS-485 DRIVER

TTL Input Levels

VIL

VIH

Outputs

HIGH Level Output

LOW level Output

Differential Output

Balance

Open Circuit Voltage

Output Current

Short Circuit Current

Transition Time

Maximum Transmission Rate

Propagation Delay

tPHL

tPLH

RS-485 RECEIVER

TTL Output Levels

VOL

VOH

Input

HIGH Threshold

LOW Threshold

Common Mode Range

HIGH Input Current

LOW Input Current

Receiver Sensitivity

2.0

2.4

2.0

–0.3

±1.5

28.0

5

2.4

+0.2

–7.0

–7.0

Input Impedance

Maximum Transmission Rate

Propagation Delay

tPHL

tPLH

V.35 DRIVER

TTL Input Levels

VIL

VIH

Outputs

Differential Output

12

5

2.0

±0.44

Output Impedance

50

Short Circuit Impedance

135

150

Transition Time

Maximum Transmission Rate 5

Propagation Delay

tPHL

tPLH

MAX.

0.8

0.4

0.8

+6.0

±5.0

±0.2

±6.0

±250

120

200

200

0.4

+12.0

–0.2

+12.0

±0.2

200

200

0.8

±0.66

150

165

40

200

200

UNITS

Volts

Volts

Volts

Volts

CONDITIONS

IOUT= -3.2mA

IOUT= 1.0mA

Volts

Volts

Volts

Volts

Volts

Volts

Volts

mA

mA

ns

Mbps

ns

ns

RL=54Ω, CL=50pF

|VT| - |VT|

RL=54Ω

Terminated in –7V to +12V

Rise/fall time, 10%–90%

RL=54Ω

RL=54Ω

RL=54Ω

Volts

Volts

Volts

Volts

Volts

Volts

kΩ

Mbps

ns

ns

(a)-(b)

(a)-(b)

Refer to graph

Refer to graph

Over –7V to +12V common

mode range

Volts

Volts

Volts

Ω

Ω

ns

Mbps

ns

ns

With termination network in

Figure 6; RL=100Ω

With termination network in

Figure 6.

With termination network

in Figure 6.

RL=100Ω

RL=100Ω

RL=100Ω

SP503_101_101508

SP503 Multiprotocol Transceiver

2

© Copyright 2008 Exar Corporation

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