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Description
Demonstration circuit 2364A showcases the
RS232/RS485 multiprotocol transceiver with integrated
termination. The DC2364A operates as a stand-alone evalu-
ation platform or can be used as a shield with a Linduino
or Arduino microcontroller board for quick and versatile
evaluation of the LTC2873.
Control signals on the LTC2873 are accessible via test
points for external monitoring or control, or they can be set
by jumpers or by the Linduino GPIO. Bus lines are routed
performance summary
PARAMETER
Input Supply
Maximum Data Rate
BoarD Layout
Figure 1. DC2364A. Default Jumper Settings Indicated by the Rectangles at the Jumpers. Default Is for Use with Linduino
Single-Bus RS485/RS232 Multiprotocol
Transceiver with Switchable Termination
LTC
2873
®
®
Specifications are at T
CONDITIONS
V
Operating
CC
V
Operating
L
RS232
RS485
DEMO MANUAL DC2364A
to test points as well as a terminal block for convenient
connections to a transmission line. The DC2364A oper-
ates from external supplies or directly from the Linduino's
regulated output supplies, configured to 3.3V or 5V with
a jumper setting.
Design files for this circuit board are available at
http://www.linear.com/demo/DC2364A
L, LT, LTC, LTM, Linear Technology, Linduino and the Linear logo are registered trademarks of
Linear Technology Corporation. All other trademarks are the property of their respective owners.
= 25°C
A
LTC2873
MIN
TYP
MAX
UNITS
3.0
5.5
1.7
V
CC
1
20
dc2364af
V
V
Mbps
Mbps
1
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Table of Contents
Related Manuals for Linear Technology DC2364A
Summary of Contents for Linear Technology DC2364A
-
Page 1: Board Layout
Specifications are at T = 25°C PARAMETER CONDITIONS UNITS Input Supply Operating Operating Maximum Data Rate RS232 Mbps RS485 Mbps BoarD Layout Figure 1. DC2364A. Default Jumper Settings Indicated by the Rectangles at the Jumpers. Default Is for Use with Linduino dc2364af... - Page 2 LTC2873 from the turrets on the right edge of the board. driving signal or jumper. If the DC2364A is used without the Linduino, the “EXT” Four switches near the bottom left of the board can setting must be used.
- Page 3 Figure 1 figuring the LTC2873 to the specified mode of operation. 1. Attach the DC2364A to the Linduino board by direct All logic inputs can be monitored at test points on left side insertion, like a shield is installed.
-
Page 4: Parts List
DEMO MANUAL DC2364A parts List ITEM REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMbER Required Circuit Components IC, Single-Bus RS485/RS232 Transceiver LINEAR, LTC2873IUFD#PBF Cap, 0.22µF 10% 0603 16V X7R TDK, C1608X7R1C224K080AC Cap, 2.2µF 10% 0603 16V X7S TDK, CGA3E1X7S1C225K080AC C3-4 Cap, 1µF 10% 0603 16V X7R... -
Page 5: Schematic Diagram
Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no representa- tion that the interconnection of its circuits as described herein will not infringe on existing patent rights. - Page 6 Linear Technology Corporation (LTC) provides the enclosed product(s) under the following AS IS conditions: This demonstration board (DEMO BOARD) kit being sold or provided by Linear Technology is intended for use for ENGINEERING DEvELOPMENT OR EvALUATION PURPOSES ONLY and is not provided by LTC for commercial use. As such, the DEMO BOARD herein may not be complete in terms of required design-, marketing-, and/or manufacturing-related protective considerations, including but not limited to product safety measures typically found in finished commercial goods.
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