81
HCD-FX900W
IC702 LC89056W-E
38
37
36
23
24
1
2 3
4
5
44
8 9 10
46
17
22
21
20
30
35
25
26
27
28
29
32
33
34
16
45
13
14
15
47
40
41
48
CLK
39
XSEL
CE
DI
EMPHA
AUDIO
DISEL
SPDIF
DINO
DINI
DIN2
6
D.GND
7
DVDD
11
AVDD
12
AGND
DOSEL0
R
VIN
LPF
CKSEL0
XSTATE
18 DGND
19 DVDD
XIN
XOUT
XMCK
DVDD
31
DGND
DO
CSFLAG
F0/P0/C0
F1/P1/C1
F2/P2/C2
VF/P3/C3
LOCK
BPSYNC
ERROR
DATAO
DOSEL1
CKOUT
BCK
LRCK
CKSEL1
MODE0
MODE1
42
DGND
43
DVDD
XMODE
TIMING
MICROCOMPUTER
INTERFACE
SAMPLING
FREQUENCY
C BIT
DETECT
PA/PB
DETECT
LOCK
DETECT
SYSTEM
RESET
MODE
SELECT
INPUT
CIRCUIT
DATA
DEMODULATOR
PLL
CLOCK
– KEY Board –
IC802 BU2099FV
2 3
4
5
6 7 8 9 10
11
17 16 15 14 13 12
CONTROL
CIRCUIT
12 BIT
SHIFT
REGISTER
12 BIT
STORAGE
REGISTER
OUTPUT
BUFFER
(OPEN DRAIN)
19
20
VDD
OE
Q11
18
Q11
Q10
Q9
Q8
Q7
Q6
Q5
Q4
Q3
Q2
Q1
Q0
LCK
CLK
DATA
NC
1
VSS
– I/O Board –
IC202 MM1228XFBE
1
2
3
4
5
6
7
8
GND
VCC
5
6
7
8
OUT
IN3
IN2
IN1
SW1
SW2
BIAS
DRIVER
Ω
75
6dB
AMP
L
L
H
H
IC350, IC351 MC14052BDR2
BINARY TO 1-OF-4
DECODER WITH
INHIBIT
LEVEL
CONVERTER
Y0
Y1
Y2
Y3
X
X0
X1
X2
X3
Y
VDD
A
B
VSS
VEE
INH
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
– MAIN Board –
