LTC1518_1 LINER [Linear Technology], LTC1518_1 Datasheet - Page 9

• Manufacturer Part Number: LTC1518_1
• Description: 52Mbps Precision Delay RS485 Quad Line Receivers
• Manufacturer: LINER [Linear Technology]

APPLICATIO S I FOR ATIO
Note that due to the increased skew, this configuration
might not operate at the highest data rates. To transmit
single-ended data over short to medium distances, twisted
pair is recommended with the unused wire grounded at
both ends (Figure 7).
U
U
Figure 7. Medium Distance Single-Ended Transmission
Using a CMOS Driver
MC74ACT04
RO
MC74AC04
DI
LTC1685
W
1
4
5V
RE
DE
Figure 8. LTC1518 Connected to LTC1685
High Speed RS485 Transceiver
2
3
7
6
100
0.01 F
10-FT TWISTED PAIR
100
U
EN
EN
5V
4
12
3.3k
1k
A 1
RO
3
Differential Transmission
Data rates up to 52Mbps can be transmitted over 100 feet
of high quality category 5 twisted pair. Figure 8 shows the
LTC1518 receiving differential data from an LTC1685
transceiver. As in the single-ended configurations, care
must be taken to properly terminate the differential data
lines to avoid unwanted reflections, etc.
2 B
1/4 LTC1518
100
100
–
+
LTC1518
LTC1519
1/4
6
7
LTC1685
1518/19 F08
2
3
RE
DE
1518/19 F07
1
4
RO
DI
LTC1518/LTC1519
9