TQ3632 查看數據表（PDF） - TriQuint Semiconductor
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TQ3632 Datasheet PDF : 12 Pages
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TQ3632
Data Sheet
give the best output match. The demo board achieves 11-12dB
of return loss which is adequate for connection directly to the
input of a SAW filter.
Grounding
An optimal ground for the device is important in order to achieve
datasheet specified performance. Symptoms of a poor ground
include reduced gain and the inability to achieve <2:1 VSWR at
the output when the input is matched. It is recommended to use
multiple vias to a mid ground plane layer. The vias at pins 2 and
7 to this layer should be as close to the lead pads as possible
Additionally, the ground return on the Vdd bypass cap should
provide minimal inductance back to chip pins 2 and 7.
TQ3632 S-Parameters
Following are S-Parameter graphs for the high gain and high
gain low linearity modes. Data was taken on a single “nominal”
device at 2.8v Vdd. The reference planes were set at the end of
the package pins.
TQ3632 High Gain Mode S-Parameters S12
TQ3632 High Gain Mode S-Paremeters S11
TQ3632 High Gain Mode S-Parameters S21
8
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