SP3220 Ver la hoja de datos (PDF) - Signal Processing Technologies

Número de pieza

componentes Descripción

Fabricante

SP3220

+3.0V to +5.5V RS-232 Driver/Receiver Pair

Signal Processing Technologies 

SPECIFICATIONS (continued)

Unless otherwise noted, the following specifications apply for VCC = +3.0V to +5.0V with TAMB = TMIN to TMAX.

Typical Values apply at VCC = +3.3V or +5.0V and TAMB = 25oC.

PARAMETER

MIN. TYP. MAX. UNITS CONDITIONS

RECEIVER INPUTS

Input Voltage Range

-15

+15

V

Input Threshold LOW

Input Threshold HIGH

Input Hysteresis

0.6 1.2

0.8 1.5

1.5 2.4

1.8 2.4

0.3

V

VCC=3.3V

VCC=5.0V

V

VCC=3.3V

VCC=5.0V

V

Input Resistance

3

5

7

kΩ

TIMING CHARACTERISTICS

Maximum Data Rate

120 235

Driver Propagation Delay

1.0

1.0

Receiver Propagation Delay

0.3

0.3

Receiver Output Enable Time

200

kbps

µs

µs

µs

ns

RL=3kΩ, CL=1000pF, one driver switching

tPHL, RL = 3KΩ, CL = 1000pF

tPLH, RL = 3KΩ, CL = 1000pF

tPHL, RxIN to RxOUT, CL=150pF

tPLH, RxIN to RxOUT, CL=150pF

Receiver Output Disable Time

Driver Skew

Receiver Skew

Transition-Region Slew Rate

200

ns

100 500

ns

| tPHL - tPLH |, TAMB = 25oC

200 1000

ns

| tPHL - tPLH |

30

V/µs VCC = 3.3V, RL = 3KΩ, TAMB = 25oC,

measurements taken from -3.0V to +3.0V

or +3.0V to -3.0V

NOTE 2: Driver input hysteresis is typically 250mV.

Rev. 6/25/03

SP3220 True +3.0 to +5.0V RS-232 Transceivers

3

© Copyright 2003 Sipex Corporation

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