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MICRF114 датащи(PDF) 20 Page - Microchip Technology

номер детали MICRF114
подробное описание детали  Low-Power Integrated Sub-GHz Wireless RF Transmitter
PDF  34 Pages
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производитель  MICROCHIP [Microchip Technology]
домашняя страница  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

MICRF114 датащи(HTML) 20 Page - Microchip Technology

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MICRF114
DS50002416A-page 20
Preliminary
 2015 Microchip Technology Inc.
4.2
Measurement Results
The important parameters for regulatory standard com-
pliance are measured on PICtail™ boards for the two
most popular operating frequencies using the fre-
quency-dependent components listed in Table 4-1. The
MICRF114 operates in CW mode. Harmonics and
spurs are measured at +10 dBm output power setting.
Matching network, cable, and connector losses are not
compensated to ensure that the actual power readings
on the spectrum analyzer are slightly less.
Measurement results are shown in Figure 4-2 through
Figure 4-7. Note that the regulations limit the radiated
field strength at a given distance. The maximum usable
power setting at a given frequency and geographic
region can be determined only if the antenna gain is
known. The level of the fundamental carrier signal and
all possible out-of-band signals – harmonics, spurs,
and integrated phase noise – must be taken into
account. The filter network can be simplified at low-
radiated power.
FIGURE 4-2:
HARMONIC LEVELS AT 315 MHZ
FIGURE 4-3:
SPURIOUS LEVELS AT 315 MHZ



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