DB1065 Datasheet, PDF (12/23 Pages) CML Microcircuits – CTCSS Encoder / Decoder Development Kit

DB1065 / MX465 Vdd VS Typical Supply Current
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Vdd applied
Figure 4: Supply Voltage Vs Typical Supply Current
Other performance characteristics may be measured and plotted in a similar manner. Please
refer to the MX465’s specifications in section 2, Electrical Performance, on page 3 regarding
maximum and minimum operating limits each device is tested to meet. Section 2’s information is
used by the designer in regard to designing a circuit using the MX465 based on a device’s
electrical properties.
4.6 Connecting the DB1065 to a system
The DB1065 may be connected to a radio system by connecting wires to the terminal strips or the
DB1065’s smaller circuit may be broken out of the development board.
Refer to Figure 5: Breaking Out Small Circuit, on Page 13. Before snapping the smaller circuit
out the traces on the snap lines must be cut by carefully breaking off the three tabs containing the
terminal strips and dip switch. Try and avoid bending or flexing the smaller circuit as the surface
mount components are damaged easily. A set of tin snips can be also be used to cut out the
smaller board and trim up the excess or rough edge left on the smaller board.
Holes for soldering wires have been provided around the edge of the smaller inside circuit. Refer
to Figure 8: Component view Assembly Drawing, to connect wires appropriately. Solder jumpers
in the smaller circuit, E1 through E6, provide a method to select one CTCSS tone for operation.
Refer to Figure 9: Solder View Assembly Drawing, for reference to solder jumpers.
20480150.001 MX-COM
1996
Page 12