
Precautions for design-ins
(1) Observe precautions for handling because of electro-static sensitive devices.
(2) Form the ground pattern as wide as possible to minimize the ground impedance. In particular, the line connected
to the ground pin should be as short as possible.
(3) A bypass capacitor should be attached to each V
CC
pin.
(4) The DC cut capacitor must be externally attached to each signal pin.
(5) Each input pin must not externally adjust the pin voltage.
(6) When pull down the output pin with a DC resistor, choose a resistor with a resistance larger than 200
.
(7) Beware that if the load impedance Z
L
is smaller than 200
the output amplitude is too low, resulting in a low DU
ratio with the second order harmonics.
The information in this document will be updated without notice.
This document outlines a typical application of this product, that is, provides a sample concept for
designing an external circuit directly required for this product. NEC only assures the quality and
characteristics of this product specified in the Data Sheet, and is not responsible for any user's product
designs or application sets.
The peripheral circuit shown in this document is just an example prepared for evaluating the operations
of this product, and does not imply that the circuit configurations or constants are recommended values
or regulations. In addition, these circuits are not intended for any mass-produced application sets. This
is because the RF characteristics vary depending on the external parts used, mounting patterns, and
other conditions.
Therefore, it is the responsibility of the user to design the external circuit according to the user-desired
system requirements while referring to the information in this document and to use it after confirming the
characteristics on the user’s application set.