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dc1748af

DEMO MANUAL DC1748A

Demonstration circuit 1748A is easy to set up and evalu-

ate the performance of the LTM2883. 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 JP1 in the ON (default) position.

2. With power off, connect the input power supply to VCC

and GND on pin header J1.

QUICK START PROCEDURE

3. Turn on the power at the input.

NOTE: Make sure that the input voltage does not

exceed 6V.

4. Check for the proper output voltages. VCC2 = 5V,

V+ = 12.5V, and V– = –12.5V on pin header J2.

5. Once the proper output voltages are established, con-

nect signals to J1 and J2 pin headers as appropriate.

The header pin names and locations are detailed on the

demo board silkscreen below the pin headers.

Figure 2. Demo Board Setup