LTC2871CFE#PBF Linear Technology, LTC2871CFE#PBF Datasheet - Page 15

• Manufacturer Part Number: LTC2871CFE#PBF
• Description: IC, RS232-RS485 TXRX, 200MBPS, 5.5V, TSSOP-38
• Manufacturer: Linear Technology

Specifications of LTC2871CFE#PBF

• Device Type: Transceiver
• No. Of Drivers: 2
• Supply Voltage Range: 3V To 5.5V
• Driver Case Style: TSSOP
• No. Of Pins: 38
• Operating Temperature Range: 0°C To +70°C
• Rohs Compliant: Yes
• Ic Interface Type: RS232, RS485

TEST CIRCUITS
0V OR V
RECEIVER
TE485
DRIVER
INPUT
L
Figure 8. RS485 Termination Resistance and Timing Measurements (Note 5)
A
B
DXEN/DX232
I
A
Figure 9. RS232 Driver Timing and Slew Rate Measurements
+
–
+
–
V
V
AB
B
Figure 10. RS232 Driver Enable and Disable Times
R
R
TERM
L
DRIVER
OUTPUT
R
L
=
C
V
L
I
AB
A
DRIVER
OUTPUT
C
L
DRIVER
DRIVER
TE485
INPUT
INPUT
OUTPUT
OUTPUT
DRIVER
DRIVER
DX232
DXEN/
I
A
SLEW RATE =
½V
L
t
t
½V
ZLD232
ZHD232
½V
t
F
L
3V
OR t
L
6V
–3V
90%
R
t
RTEN485
5V
5V
0V
t
PHLD232
t
F
LTC2870/LTC2871
t
SKEWD232
t
PLHD232
½V
= |t
L
PHLD232
t
½V
t
HZD232
LZD232
t
½V
R
L
L
– t
0V
10%
PLHD232
t
RTZ485
0.5V
0.5V
–3V
3V
|
28701 F08
28701 F09
V
V
V
V
0V
0V
L
L
OHD
OLD
28701 F10
V
V
V
0V
0V
0V
L
OHD
OLD
15
28701f