|
|
PDF LTC1327CN Data sheet ( Hoja de datos )
| Número de pieza | LTC1327CN | |
| Descripción | 3.3V Micropower EIA/TIA-562 Transceiver | |
| Fabricantes | Linear Technology | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de LTC1327CN (archivo pdf) en la parte inferior de esta página. Total 8 Páginas | ||
|
No Preview Available !
LTC1327
3.3V Micropower EIA/TIA-562
Transceiver
FEATURES
s Low Supply Current
300µA
s 0.2µA Supply Current in SHUTDOWN
s ESD Protection
±10kV
s Operates From a Single 3.3V Supply
s Uses Small Capacitors
0.1µF
s Operates To 120k Baud
s Three-State Outputs are High Impedance When Off
s Output Overvoltage Does Not Force Current Back
Into Supplies
s EIA/TIA-562 I/O Lines Can Be Forced to ±25V
Without Damage
s Flowthrough Architecture
APPLICATI S
s Notebook Computers
s Palmtop Computers
DESCRIPTIO
The LTC1327 is an advanced low power, three-driver/five-
receiver EIA/TIA-562 transceiver. In the no load condition,
the supply current is only 300µA. The charge pump only
requires four 0.1µF capacitors.
In SHUTDOWN mode, the supply current is further re-
duced to 0.2µA. All EIA/TIA-562 outputs assume a high
impedance state in SHUTDOWN and with the power off.
The LTC1327 is fully compliant with all data rate and
overvoltage EIA/TIA-562 specifications. The transceiver
can operate up to 120k Baud with a 1000pF//3kΩ load.
Both driver outputs and receiver inputs can be forced to
±25V without damage, and can survive multiple ±10kV
ESD strikes.
TYPICAL APPLICATI
C1
0.1µF
3-Drivers/5-Receivers with SHUTDOWN
V+ 1
VCC
C2
0.1µF
DR1 OUT
RX1 IN
DR2 OUT
RX2 IN
RX3 IN
RX4 IN
DR4 OUT
RX5 IN
ON/OFF
2
3
4
5
6
7
8
9
10
11
12
13
14
LTC1327
28 V–
27
26
C3
0.1µF
25
DR1 IN
24
RX1 OUT
23
DR2 IN
22
RX2 OUT
21
RX3 OUT
20
RX4 OUT
19
DR3 IN
18
RX5 OUT
17
GND
16
15
C4
0.1µF
1327 TA01
Supply Current vs Temperature
600
VCC = 3.3V
ALL DRIVERS INPUTS TIED TO VCC
500
1.2
1.0
400
QUIESCENT
CURRENT
300
0.8
0.6
200
SHUTDOWN
CURRENT
0.4
100 0.2
0
–20
0 20 40 60
TEMPERATURE (°C)
80
LTC1327 • TA02
1
1 page  
LTC1327
PI FU CTIO S
C1 +, C1 –, C2 +, C2 –: Commutating Capacitor Inputs.
These pins require two external capacitors C = 0.1µF. One
from C1+ to C1–, and another from C2 + to C2 –. To
maintain charge pump efficiency, the capacitor’s effective
series resistance should be less than 20Ω.
DR IN: EIA/TIA-562 Driver Input Pins. Inputs are TTL/
CMOS compatible. Inputs should not be allowed to float.
Tie unused inputs to VCC.
DR OUT: Driver Outputs at EIA/TIA-562 Voltage Levels.
Outputs are in a high impedance state when in SHUT-
DOWN mode or VCC = 0V. 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 Lev-
els. Outputs are in a high impedance state when in SHUT-
DOWN mode to allow data line sharing.
TEST CIRCUITS
ESD Test Circuit
C1
0.1µF
EIA/TIA 562
LINE PINS
PROTECTED
TO ±10kV
V+ 1
VCC
C2
0.1µF
DR1 OUT
RX1 IN
DR2 OUT
RX2 IN
RX3 IN
RX4 IN
DR3 OUT
RX5 IN
ON/OFF
NC
2
3
4
5
6
7
8
9
10
11
12
13
14
LTC1327
28 V–
27
26
C3
0.1µF
25
DR1 IN
24
RX1 OUT
23
DR2 IN
22 RX2 OUT
21
RX3 OUT
20
RX4 OUT
19 DR3 IN
18
RX5 OUT
17
GND
16
15
C4
0.1µF
LT1327 • TC01
Driver Timing Test Load
DRIVER
INPUT
DR
DRIVER
OUTPUT
51pF 3k
1327 TC02
Receiver Timing Test Load
RX IN
RX
RX
OUTPUT
51pF
1327 TC03
5
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet LTC1327CN.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| LTC1327CG | 3.3V Micropower EIA/TIA-562 Transceiver | Linear Technology |
| LTC1327CN | 3.3V Micropower EIA/TIA-562 Transceiver | Linear Technology |
| LTC1327CS | 3.3V Micropower EIA/TIA-562 Transceiver | Linear Technology |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |