73
AVR-1909/789, AVC-1909
LC72722 (IC801 : for E2 model only)
LC74782 (IC2017) SN74LVC244APW (IC1028)
Block Diagram
124V
REF
SYR
223MPXIN CE
322Vdda DI
421Vssa CL
520FLOUT DO
619CIN
LC72722
LC72722M
LC72722PM
Top view
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
w
w
w
.
x
i
a
o
y
u
1
6
3
.
c
o
m
Q
Q
3
7
6
3
1
5
1
5
0
9
9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
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