Motorola APX 6000 - Figure 3-11. Synthesizer Block Diagram (VHF); Figure 3-12. Synthesizer Block Diagram (UHF1 and UHF2)

Theory of Operation: Transceiver Board 3-17
Figure 3-11. Synthesizer Block Diagram (VHF)
Figure 3-12. Synthesizer Block Diagram (UHF1 and UHF2)
TRIDENT IC
LOGIC
EXPANDER
LOOP
FILTER
PRESCALAR
BUFFER
16.8MHz
16.8MHz
BUFFER
PRE
BUFFER
2
TX LO
RX LO
TX
BUFFER
VHF DIVIDE-BY-2
2
ND
HARMONIC FILTER
VHF TX
VHF RX
TRIDENT IC
LOGIC
EXPANDER
LOOP
FILTER
PRESCALAR
BUFFER
16.8MHz
16.8MHz
BUFFER
PRE
BUFFER
TX LO
RX LO
TX
BUFFER
UHF RX
UHF TX