LTC1546 Linear Technology, LTC1546 Datasheet - Page 8

• Manufacturer Part Number: LTC1546
• Description: Software-Selectable Multiprotocol Transceiver with Termination
• Manufacturer: Linear Technology

W
SWITCHI G TI E WAVEFOR S
LTC1546
Table 1
LTC1546 MODE NAME
Not Used (Default V.11)
RS530A
RS530
X.21
V.35
RS449/V.36
V.28/RS232
No Cable
Not Used (Default V.11)
RS530A
RS530
X.21
V.35
RS449/V.36
V.28/RS232
No Cable
8
ODE SELECTIO
B – A
B – A
–V
D
V
R
–V
V
OD2
OD2
V
V
5V
0V
OH
OL
O
O
A
B
U
V
O
W
M2
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
U
1.5V
0V
t
t
PLH
PLH
50%
M1
t
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
r
Figure 14. V.11, V.35 Receiver Propagation Delays
Figure 13. V.11, V.35 Driver Propagation Delays
1.5V
t
10%
90%
SKEW
M0
1/2 V
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
W
f = 1MHz : t
f = 1MHz : t
O
DCE/DTE
r
r
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
10ns : t
10ns : t
f
f
V.11
V.11
V.11
V.11
V.35
V.11
V.28
V.11
V.11
V.11
V.11
V.35
V.11
V.28
10ns
10ns
D1
Z
Z
V.11
V.11
V.11
V.11
V.35
V.11
V.28
V.11
V.11
V.11
V.11
V.35
V.11
V.28
D2
Z
Z
OUTPUT
INPUT
V.11
V.11
V.11
V.11
V.35
V.11
V.28
D3
Z
Z
Z
Z
Z
Z
Z
Z
Z
1.5V
0V
90%
t
t
PHL
PHL
V.11
V.11
V.11
V.11
V.35
V.11
V.28
R1
t
Z
Z
Z
Z
Z
Z
Z
Z
Z
f
1.5V
50%
t
SKEW
10%
V.11
V.11
V.11
V.11
V.35
V.11
V.28
V.11
V.11
V.11
V.11
V.35
V.11
V.28
R2
Z
Z
1546 F13
1546 F14
V.11
V.11
V.11
V.11
V.35
V.11
V.28
V.11
V.11
V.11
V.11
V.35
V.11
V.28
R3
Z
Z