DC1746A-A Linear Technology, DC1746A-A Datasheet - Page 3

• Manufacturer Part Number: DC1746A-A
• Description: EVALUATION KIT LOW EMI LTM2881-3
• Manufacturer: Linear Technology
• Series: µModuler

Specifications of DC1746A-A

• Main Purpose: Interface, Transceiver RS-422/RS-485
• Embedded: No
• Utilized Ic / Part: LTM2881
• Primary Attributes: 3V Supply, Isolated, Transceiver + Power
• Kit Contents: Board, Datasheet
• Tool / Board Applications: Interface-Backplane, PCI, PCI Express, RS-XXX, Digital & Opto Isolator
• Mcu Supported Families: LTM2881
• Development Tool Type: Hardware - Eval/Demo Board
• Lead Free Status / RoHS Status: Not applicable / Not applicable
• Secondary Attributes: -

QUICK START PROCEDURE
Demonstration circuit 1746A is easy to set up and evalu-
ate the performance of the LTM2881. Refer to Figure 2
for proper measurement equipment setup and follow the
procedure below.
NOTE: When measuring the input or output voltage ripple
or high speed signals, care must be taken to avoid a long
ground lead on the oscilloscope probe.
1. Install jumpers in following positions: (all are default
except JP5 and SW1)
JP1 ON
JP2 ON
JP3 ON
JP4 ON
JP5 OFF
SW1 HALF DUPLEX
Figure 2. Demo Board Setup
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 voltage. V
5. Once the proper output voltage is established, connect
6. Connect oscilloscope to pin RO and observe 10MHz
DEMO MANUAL DC1746A
and GND on pin header J1.
NOTE: Make sure that the input voltage does not exceed
6V.
be measured between probe points V2 and C.
a function generator to pin DI and set to square wave
with a low of 0V, high = V
(20Mbps). Enable output of function generator.
waveform. This demonstration shows data that is
transmitted from DI, loops back through half-duplex
connection, and out of RO.
CC
. Set frequency to 10MHz
CC2
= 5V, this can
dc1746af
3
CC