72
HCD-HDX500/HDX501W
•
IC Block Diagrams
– MAIN Board –
IC502, 1105, 1107, 1703 TK11133CSCL-G
IC1702, 3050 TK11133CSCL-G
IC1707 TK11150CSCL-G
CONTROL
CIRCUIT
BANDGAP
REFERENCE
+
–
OVER HEAT &
OVER CURRENT
PROTECTION
1
VCONT
3
NP
2
GND
4
VOUT
5
VIN
IC504 NJM2887DL3 (TE2)
5
VADJ
4
VOUT
3
GND
2
VIN
1
CONTROL
+
–
THERMAL
PROTECTION
BANDGAP
REFERENCE
IC503 PST3635NR
VDD 2
OUT 1
GND 3
+
–
VREF
CD
5
NC
4
IC702 LC890561W
44
DOSEL0
45
DOSEL1
46
CKSEL0
47
CKSEL1
48
XMODE
36
DI
35
DO
34
ERROR
33
BPSYNC
32
VREF
31
DGND
30
DVDD
29
VF/DATAO2
28
F2/DLMP
27
F1/FSB1
26
F0/FSB0
25
CSFLAG
1
DISEL
2
DOUT
3
DIN0
4
DIN1
5
DIN2
6
DGND
7
DVDD
8
SDIN
9
AGND
10
LPF
11
AVDD
12
AGND
23 EMPHA
22 XIN
24 AUDIO
21 XOUT
20 XMCK
19 DVDD
18 DGND
17 XSTATE
16 DATAO
15 LRCK
14 BCK
13 CKOUT
PA,PB DETECT
REGULATOR
FS CALCULATION
AMP
CLOCK
SELECTOR
INPUT SELECTOR
PLL
DEMODULATION
&
LOCK DETECT
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