GD75323_16 Datasheet, PDF (9/19 Pages) Texas Instruments – MULTIPLE RS-232 DRIVERS AND RECEIVERS

GD75323
MULTIPLE RS-232 DRIVERS AND RECEIVERS
SLLS213A – JANUARY 1996 – REVISED JUNE 1999
TYPICAL CHARACTERISTICS
RECEIVER SECTION
2.4
2.2
2
1.8
1.6
1.4
1.2
0.8
0.6
0.4
0
INPUT THRESHOLD VOLTAGE
vs
FREE-AIR TEMPERATURE
VIT ₊
VIT–
10 20 30 40 50 60 70
TA – Free-Air Temperature – °C
Figure 11
NOISE REJECTION
ÎÎÎÎÎ ⁶
VCC = 5 V
TA = 25°C
ÎÎÎÎÎ _{See Note A}
5
ÎÎÎÎÎÎÎÎÎ CC = 300 pF
4
ÎÁÁÎÎÎÁÁÎÎÎÁÁÎÎÎÁÁÎÎÎÎ ₃
ÁÁÁÁ _{CC = 12 pF}
ÁÁÁÁ 2
ÎÁÎÁÎÁÎ _{CC = 100 pF}
ÎÁÎÁÎÁÎ 1
CC = 500 pF
0
10
40 100
400 1000
4000 10000
tw – Pulse Duration – ns
NOTE A: This figure shows the maximum amplitude of a
positive-going pulse that, starting from 0 V, does not
cause a change of the output level.
Figure 13
2
1.8
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
0
2
INPUT THRESHOLD VOLTAGE
vs
SUPPLY VOLTAGE
VIT+
VIT–
3 4 5 6 7 8 9 10
VCC – Supply Voltage – V
Figure 12
MAXIMUM SUPPLY VOLTAGE
vs
FREE-AIR TEMPERATURE
16
14
12
10
8
6
4
2
RL ≥ 3 kΩ (from each output to GND)
0
0 10 20 30 40 50 60 70
TA – Free-Air Temperature – °C
Figure 14
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