DC1503A-B Linear Technology, DC1503A-B Datasheet

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DC1503A-B

Manufacturer Part Number
DC1503A-B
Description
EVALUATION KIT TRXR LTM2881-5
Manufacturer
Linear Technology
Series
µModuler
Datasheets

Specifications of DC1503A-B

Main Purpose
Interface, Transceiver RS-422/RS-485
Embedded
No
Utilized Ic / Part
LTM2881
Primary Attributes
5V Supply, Isolated, Transceiver + Power
Lead Free Status / RoHS Status
Not applicable / Not applicable
Secondary Attributes
-
DESCRIPTION
Demonstration circuit DC1503A is an Isolated RS485/
RS422 μModule
LTM
isolated RS485/RS422 transceiver interface. All compo-
nents are integrated into the μModule transceiver. The
demo circuit operates from a supply on V
Table 1. Performance Summary (T
SYMBOL
V
V
V
f
V
OPERATING PRINCIPLES
The LTM2881 contains an isolated DC/DC converter, de-
livering power to V
Isolation is maintained by the separation of GND and GND2
where signifi cant operating voltages and transients can
exist without affecting the operation of the LTM2881. The
logic side ON pin enables or shuts down the LTM2881.
RS485/RS422 signaling is controlled by the logic inputs
DE, DI, TE and RE. Connection to the transceiver pins (A,
B, Y and Z) allows full- or half-duplex operation on the
isolated side of the demo circuit. A full-/half-duplex switch
is included on the demo circuit to ease setting the system
MAX
CC
L
CC2
IORM
®
2881. The demo circuit is a 2500V
PARAMETER
Input Supply Range
Logic Signal Supply Range
Output Voltage
Maximum Data rate
Maximum Working Insulation Voltage
Common Mode Transient Immunity
®
CC2
transceiver + power featuring the
at 5V from the input supply V
A
= 25°C)
RMS
CC
galvanically
and a logic
CONDITIONS
LTM2881-5
LTM2881-3
I
SLO = V
GND to GND2
GND to GND2
LOAD
CC
= 0mA to 100mA, DE = 0V
.
CC2
supply on V
and communicates all necessary signaling across the
isolation barrier using isolation μModule technology.
Design fi les for this circuit board are available at
http://www.linear.com/demo.
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. All other trademarks are the property of their respective owners.
confi guration. A driver termination resistor is included on
the demo circuit to allow master termination in full-duplex
confi gurations. Additional logic signaling from the isolated
side to the logic side is available with the D
The SLO pin confi gures the slew rate of the driver output
pins Y and Z.
Data is transmitted out the driver pins Y and Z from
the input DI with the input DE set high. Data is received
through the difference in A and B to the output RO with
the input RE set low.
DEMO MANUAL DC1503A
Transceiver with Power
RS485/RS422 µModule
L
. The part generates the output voltage V
Isolated 20Mbps
1.62
MIN
560
4.5
3.0
4.7
20
30
TYP
5
3
5
LTM2881:
IN
MAX
5.5
3.6
5.5
to D
OUT
dc1503fa
UNITS
pins.
Mbps
kV/μs
1
CC2
V
V
V
V
V

Related parts for DC1503A-B

DC1503A-B Summary of contents

Page 1

... DESCRIPTION Demonstration circuit DC1503A is an Isolated RS485/ RS422 μModule ® transceiver + power featuring the LTM ® 2881. The demo circuit is a 2500V isolated RS485/RS422 transceiver interface. All compo- nents are integrated into the μModule transceiver. The demo circuit operates from a supply on V Table 1. Performance Summary (T = 25° ...

Page 2

... DEMO MANUAL DC1503A QUICK START PROCEDURE Demonstration circuit DC1503A is easy to set up to evalu- ate the performance of the LTM2881. Refer to Figure 2 for proper measurement equipment setup and follow the procedure below: Use a short ground lead on the oscilloscope probe when measuring input or output voltage ripple or high speed signals ...

Page 3

... QUICK START PROCEDURE DEMO MANUAL DC1503A Figure 2. Proper Measurement Equipment Setup dc1503fa 3 ...

Page 4

... DEMO MANUAL DC1503A PARTS LIST ITEM QTY REFERENCE CIN1, CIN2 SW1 JP1-JP4, JP10 10 6 JP5-JP9, JP11 11 11 JP1-JP11 12 5 TP1-TP5 13 12 TP7-TP18 14 4 (Stand-Off) 4 PART DESCRIPTION REQUIRED CIRCUIT COMPONENTS I.C., LTM2881CV-3 I.C., LTM2881CV-5 HARDWARE (FOR DEMO BOARD ONLY) CAP ., TANT 6.8μF 16V 10% TAJA LED, SMT, GREEN, 2 ...

Page 5

... BOUNDARY ISOLATION 2 2 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. DEMO MANUAL DC1503A ...

Page 6

... DEMO MANUAL DC1503A 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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