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| MC68HC908RF2 Datasheet, PDF (229/254 Pages) Motorola, Inc – HCMOS Microcontroller Unit | |||
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PLL Tuned UHF Transmitter Module
Application Information
16.11 Application Information
This subsection provides application information for the usage of the
UHF transmitter module.
16.11.1 Application Schematics in OOK and FSK Modulation
Figure 16-4 and Figure 16-5 show application schematics in OOK and
FSK modulation for the 315-MHz and 434-MHz frequency bands. For
868-MHz band application, the input pin BAND must be wired to GND.
See component description in Table 16-4 and Table 16-5.
VCC
TO MCU
Y1
C6
R2
VCC
DATACLK
MODE
DATA
ENABLE
BAND
GND
VCC
GNDRF
XTAL1
RFOUT
XTAL0
REXT
VCC
CFSK
NC
MATCHING
NETWORK
C7 C8
ANTENNA
NC = NO CONNECTION
Figure 16-4. Application Schematic in OOK Modulation,
315-MHz and 434-MHz Frequency Bands
MC68HC908RF2 â Rev. 1
MOTOROLA
PLL Tuned UHF Transmitter Module
Advance Information
229
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