LTC1386CS Linear Technology, LTC1386CS Datasheet - Page 4

• Manufacturer Part Number: LTC1386CS
• Description: IC TXRX 3.3V EIA/TIA-562 16-SOIC
• Manufacturer: Linear Technology
• Type: Transceiverr

Specifications of LTC1386CS

• Number Of Drivers/receivers: 2/2
• Protocol: RS562
• Voltage - Supply: 3.3V
• Mounting Type: Surface Mount
• Package / Case: 16-SOIC (3.9mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

PI FU CTIO S
SWITCHI G TI E WAVEFOR S
LTC1386
4
V
with a 0.1µF ceramic capacitor.
GND: Ground Pin.
V
2V
0.1µF for charge storage. The capacitor may be tied to
ground or V
may share a common capacitor. For large numbers of
devices, increasing the size of the shared common storage
capacitors is recommended to reduce ripple.
V
– 1.3V). This pin requires an external capacitor C = 0.1µF
for charge storage.
C1
pins require two external capacitors C = 0.1µF: one from
C1
CC
+
–
: Positive Supply Output (EIA/TIA562 Drivers). V
CC
: Negative Supply Output (RS232 Drivers). V
+
+
U
: 3.3V Input Supply Pin. This pin should be decoupled
, C1
to C1
– 1V. This pin requires an external capacitor C =
–
, C2
U
–
CC
and another from C2
+
U
, C2
. With multiple devices, the V
–
: Commutating Capacitor Inputs. These
U
W
OUTPUT
OUTPUT
DRIVER
DRIVER
INPUT
INPUT
RX
+
RX
to C2
t
LHR
t
Figure 2. Receiver Propagation Delay Timing
Figure 1. Driver Propagation Delay Timing
LHD
1.4V
–
. To maintain
+
and V
1.7V
W
–
≅ – (2V
0.8V
0V
–
pins
+
CC
≅
charge pump efficiency, the capacitor’s effective series
resistance should be less than 2Ω.
TR IN: EIA/TIA562 Driver Input Pins. Inputs are TTL/
CMOS compatible. The inputs of unused drivers can be left
unconnected since 300k input pull-up resistors to V
included on chip.
TR OUT: Driver Outputs at EIA/TIA562 Voltage Levels.
The driver outputs are protected against ESD to ±10kV for
human body model discharges.
RX IN: Receiver Inputs. These pins can be forced to ±25V
without damage. The receiver inputs are protected against
ESD to ±10kV for human body model discharges. Each
receiver provides 0.4V of hysteresis for noise immunity.
RX OUT: Receiver Outputs with TTL/CMOS Voltage
Levels.
1.4V
1.3V
t
t
HLD
HLR
0V
2.4V
LTC1386 • F01
LTC1386 • F02
V
V
V
0V
V
0V
V
0V
CC
+
–
CC
CC
CC
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are