Teac AG-D9260 - Tuner IC Details; LC72131 Block Diagram; LA1837 Block Diagram

18
LC72131 (PLL SYNTHESIZER/ TUNER IC11)
XIN
REFERENCE
DIVIDER
SAMLLOM COUNTER
1/16, 1/17 4bits
PHASE DETECTOR
CHARGE PUMP
UNLOCK
DETECTOR
UNIVERSAL
COUNTER
POWER
ON
RESET
CCB
I/F
12bits PROGRAMMABLE
DIVIDER
DATA SHIFT REGISTER
LATCH
PD
AIN
AOUT
IFIN
XOUT
FMIN
AMIN
CE
DI
CL
DO
V
DD
VSS
BO1 BO2 BO3 BO4
I01 I02
LA1837 (MPX + IF / TUNER IC12)
AM SD ADJ
3 rd 5 th
DECODER
ANTI-BIRDIE
FM