UHF 440-470 MHz PCB 84863848Z13-C Schematic Diagrams, Overlays, and Parts Lists 11-23
HKLN4216A November 24, 2003
Chapter 11 UHF 440-470 MHz PCB 84863848Z13-C Schematic Diagrams, Overlays, and Parts Lists
CONTROLLER
RX_FE_UHF_R2
SYNTH_UHF_R2
TX_UHF_R2
VCO_UHF_R2
RX_BE
IF_IN
RSSI
UHF R2
RX_OUT
TX_ENA
TX_INJ
USWB+
3V
5R
PRESC
RX_INJ
TRB
TX_INJ
VCO_MOD
V_SF
V_STEER
5V
BW_SEL
DEMOD
RX_INJ
16_8_MHZ
3V5V
LOCK
MOD_IN
PRESC
SPI_CLK
SPI_DATA_OUT
SYNTH_CS
TRB
VCO_MOD
V_SF
V_STEER
5T
PWR_SET
5R
USWB+
5V
5R 3VUSWB+
5R
IF_OUT RX_IN
SPI_CLK
SPI_DATA_OUT
SYNTH_CS
TX_ENA
USWB+
3V
5T
5T
5V
5R
3V
5V
16_8_MHZ
3V
5R
5T
5V
BW_SEL
DEMOD
LOCK
MOD_OUT
PWR_SET
RSSI
Figure 11-17. UHF (440-470 MHz) Radio Circuit Block Diagram
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