DC1503A-B Linear Technology, DC1503A-B Datasheet - Page 2

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

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: -

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.
1. Place jumpers in the following positions: (all are default
2
except JP1, JP2, JP6 and JP8)
JP1
JP2
JP3
JP4
JP5
JP6
JP7
JP8
JP9
JP10 FAST
JP11 HI
SW1 HALF DUPLEX
ON
V
ON
OUT
ON
EXT
ON
ON
ON
CC
(Note: Logic signals referenced to V
1V/DIV
RO
Figure 1. RO Output
CC
)
50ns/DIV
2. With power off, connect the input power supply to V
3. Turn on the power at the input.
4. Check for the proper output voltages. V
5. Once the proper output voltages are established, connect
6. Connect oscilloscope to terminal RO and observe wave-
and GND.
Note: Make sure that the input voltage does not exceed
6V.
D1 is On, LED D2 is On.
a function generator to terminal DI and set to square
wave with a low of 0V, high = V
Set Frequency to 10MHz (20Mbps). Enable output of
function generator.
form at 10MHz. This demonstration shows data that
transmits from DI, loops back through the half-duplex
confi guration, and out of RO.
DC1503 F01
CC
, termination is Hi-Z.
CC2
= 5V, LED
dc1503fa
CC