NJ88C50
a low power prescaler, the SP8715, feeding the NJ88C50 in
single ended mode. This requires a biasing network around
the differential input of the NJ88C50 to be used (pins 2 and 3).
Power supply and ground rails must have adequate
decoupling otherwise overall performance may be impaired.
Fig.8 shows a typical application, using the NJ88C50 to
generate both VHF and UHF signals. External components
are kept to a minimum, requiring only bias, loop filter and
decoupling components. In many applications the UHF VCO
is a pre-assembled and tested module to suit the end equip-
ment use, whereas the VHF design is likely to be discrete. The
circuit shown is suitable for operation up to 1.1GHz and uses
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MITEL [ MITEL NETWORKS CORPORATION ]
