Denon S-81 - Radio Broadcast Operations; Station Selection, Tuning, and Presets

18
S-81/S-81DAB
SEMICONDUCTORS
Only major semiconductors are shown, general semiconductors etc. are omitted to list.
主な半導体を記載しています。汎用の半導体は記載を省略しています。
1. IC’s
LC72722PM (IC102 : 1U-3761)
Block Diagram
124V
REF
SYR
223MPXIN CE
322Vdda DI
421Vssa CL
520FLOUT DO
619CIN
LC72722PM
RDS-ID
718T1 SYNC
817T2 T7(CORREC/ARI-ID/TA/BEO)
916T3(RDCL) T6(ERROR/57K/TP/BE1)
10 15T4(RDDA) Vssd
11 14T5(RSFT) Vddd
12 13X
OUT
X
IN
REFERENCE
VOLTAGE
ANTIALIASING
FILTER
SMOOTHING
FILTER
57 kHz
BPF
(SCF)
TEST
+
Ð
PLL
(57 kHz)
V
REF
CLOCK
RECOVERY
(1187.5 Hz)
DATA
DECODER
SYNC
DETECT-2
SYNC
DETECT-1
OSC/DIVIDER
MEMORY CONTROL
CLK(4.332 MHz)
+5V +5V
Vdda
Vssa
MPXIN
T2
T3 to T7
T1
CCB
DI
CE
CL
RAM
(24 BLOCK DATA)
ERROR CORRECTION
(SOFT DECISION)
SYNC/EC CONTROLLER
DO
X
IN
X
OUT
SYR
SYNC
RDS-ID
Vssd
Vddd
CINFLOUT
V
REF