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参数资料
| 型号： | ADM14196E |
| 厂商： | Analog Devices, Inc. |
| 英文描述： | RS-232 Line Drivers/Receivers(±15kV ESD保护,RS-232线驱动器/接收器) |
| 中文描述： | RS - 232线驱动器/接收器（± 15kV的ESD保护和RS - 232线驱动器/接收器） |
| 文件页数： | 12/13页 |
| 文件大小： | 339K |
| 代理商： | ADM14196E |
ADM14196E
REV. 0
12
PRELIMINARY
DATA
TECHNICAL
APPLICATIONS INFORMATION
In a typical Data Terminal Equipment (DTE) to Data Circuit
Terminating Equipment (DCE) 9-pin de facto interface
implementation, 2 data lines (TXD and RXD) and 6 control
lines (RTS, DTR, DSR, CTS and RI) are required. With its 5
drivers and 3 receivers, the ADM14196E offers a single chip
solution for the DCE side of the interface.
As shown in figure 29, the flow-through pinout of the device
allows for a very simple PCB layout. This simple layout allows a
ground plane to be placed beneath the IC, and ground lines to
be inserted between the signal lines to minimise crosstalk,
without the complication of multi-layer PCBs.
For the DTE side of the interface, the complementary device
(ADM14185E) with its 3 drivers and 5 receivers, may be used.
Figure 29. Typical DCE Application
FAILSAFE RECEIVER OUTPUTS
The ADM14196E has failsafe receiver outputs that assume a high
output level if the receiver input is zero or open-circuit
LAPLINK COMPATIBILITY
The ADM14196E can easily provide 128 kbps data rate under
maximum driver load conditions of C
L
= 2500pF and R
L
= 3k
at minimum power supply voltages.
MOUSE DRIVING
A typical serial mouse can be powered from the drivers. Two
driver outputs connected in parallel and set to VOH can be used
to supply power to the V+ pin of the mouse. The third driver is
set to VOL to sink current from the V- terminal. Typical mouse
specifications are 10mA @ +6V and 5mA @ -6V.
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