General/Circuit Description; General; Pll Circuit - Kenwood TR-7625 Service Manual

GENERAL/CIRCUIT DESCRIPTION
GENERAL PLL C I R C U I T
The TR-7625 1 s a 2 5 W , multl channel ( 8 0 0 channels) F M The TR 7 6 2 5 employs a PLL clrcult uslng SM51 11A lC for
transceiver
coverlng 1 4 4
-
1 4 7 9 9 5 Nl Hz
It features a programmable counter, reference osc~llator frequency
b u l l t i n repeater shift clrcult and memory
circuit
and dlv~der and phase detector Frequency d ~ v ~ s ~ o n ratlo
provlslon for connect~on of an o p t ~ o n a l (m~cro-processor) memory and remote ~ n d ~ c a t ~ o n funct~ons are all controlled by
remote control BCD codes
PLL C I R C U I T BLOCK D I A G R A M
OUTPUT
0
1 0 . 2 4 0 M H r
MUL
Fig. 1 PLL Circuit