Datasheet

SN55115, SN75115
DUAL DIFFERENTIAL RECEIVERS
SLLS072D – SEPTEMBER 1973 – REVISED MAY 1998
10
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
†
Figure 13
PROPAGATION DELAY TIMES
vs
FREE-AIR TEMPERATURE
–75
Propagation Delay Times – ns
T
A
– Free-Air Temperature – °C
30
125
0
–50 –25 0 25 50 75 100
5
10
15
20
25
V
CC
= 5 V
See Figure 1
t
PHL
(R
L
= 390 Ω)
t
PLH
(R
L
= 3.9 kΩ)
Figure 14
MAXIMUM OPERATING FREQUENCY
vs
RESPONSE-TIME-CONTROL CAPACITANCE
0.001
fmax – Maximum Operating Frequency – Hz
Response-Time-Control Capacitance – µF
10M
10
100
0.01 0.1 1
1k
10k
1M
V
CC
= 5 V
Input: – 0.5-V to 0.5-V Square Wave
T
A
= 25°C
max
f
†
Data for temperatures below 0°C and above 70°C and for supply voltages below 4.75 V and above 5.25 V are applicable to SN55115 circuits
only. These parameters were measured with the active pullup connected to the sink output.
APPLICATION INFORMATION
Location 1
SN75113 Driver
SN75115 Receiver
Location 3
Location 2
Location 5
Location 4
Location 6
Twisted
Pair
Z
O
‡
Z
O
‡
‡
Z
O
= R
T
. A capacitor may be connected in series with Z
O
to reduce power dissipation.
Figure 15. Basic Party-Line or Data-Bus Differential Data Transmission