LTC1518IS#PBF Linear Technology, LTC1518IS#PBF Datasheet - Page 6

• Manufacturer Part Number: LTC1518IS#PBF
• Description: IC LINE RCVR RS485 QUAD 16-SOIC
• Manufacturer: Linear Technology
• Type: Line Receiverr

Specifications of LTC1518IS#PBF

• Number Of Drivers/receivers: 0/4
• Protocol: RS422, RS485
• Voltage - Supply: 4.75 V ~ 5.25 V
• Mounting Type: Surface Mount
• Package / Case: 16-SOIC (3.9mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

SWITCHI G TI E WAVEFOR S
LTC1518/LTC1519
6
OUTPUT
INPUT
Figure 1. Propagation Delay Test Circuit and Waveforms
t
PLH
INPUT
U
2.5V
2.5V
V
DD
/2
W
+
–
LTC1518
LTC1519
1/4
4V
PACKAGE 1
PACKAGE 2
V
CH1 OUT
CH2 OUT
ID
t
PHL
A1, A2
INPUT
A1, B1
Figure 3. Any Channel to Any Channel Skew, Same Package
INPUT
= 1.5V
OUT 1
OUT 1
2.5V
Figure 4. Package-to-Package Propagation Delay Skew
15pF
V
SAME INPUT FOR BOTH PACKAGES
1518/19 F01b
OUTPUT
DD
/2
W
1V
t
CH-CH
B1, B2 = 2.5V
1518/19 F01
4V
t
r
= t
V
DD
t
PKG-PKG
f
/2
V
3ns for all input and enable signals.
DD
ENABLE
OUT 1
OUT 1
RECEIVER
/2
OUTPUT
Figure 2. Receiver Enable and Disable Timing Test Circuit
and Waveforms
V
V
3V
0V
5V
OH
0V
OL
t
CH-CH
V
DD
/2
1V
1.5V
V
t
PKG-PKG
t
t
C
DD
ZL
ZH
L
/2
1518/19 F03
1518/19 F04
1k
2.5V
2.5V
S1
S2
NORMALLY HIGH
NORMALLY LOW
OUTPUT
OUTPUT
1k
V
DD
1.5V
t
t
HZ
LZ
1518/19 F02
0.2V
0.2V