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6-2.
BLOCK DIAGRAM – MAIN Section –
DADTI, XBCKI,
LRCKI, DIN1
(Page 36)
A
DADT, BCK,
LRCK, FS256
FS256
BUFFER
(Page 36)
B
1
MCLK
IC550
DADT
3
SDTI
BCK
2
BICK
LRCK
4
LRCK
SWDT, SCLK
SWDT
(Page 36)
C
8
CDTI
SCLK
7
CCLK
6
CSN
38
13
XIN
X301
10MHz
11
XOUT
D732
LED DRIVE
Net MD
Q732
LED DRIVE
D751
Q751
(PLAY)
LED DRIVE
D731
Q731
(REC)
DADTI
NET MD SECURITY,
11
DSPIF3
XBCKI
DIGITAL SIGNAL PROCESSOR,
10
DSPIF2
LRCKI
USB INTERFACE
8
DSPIF2
IC901
DIN1
7
DSPIF0
5
DSPCLK
52
53
51
56
57
3
58
47
46
D/A CONVERTER
IC505
X550
12MHz
AOUTL+
12
MIX AMP
AOUTL–
11
IC501 (1/2)
AOUTR+
10
MIX AMP
IC501 (2/2)
AOUTR–
9
5
MUTING
Q170, 270
MUTING
CONTROL SWITCH
Q100
37
4
3
5
74
73
76 75
77
36
SYSTEM CONTROLLER
IC301 (2/2)
84 82 81
93
95
10
SYS+3.3V
BAK+3.3V
S726
S702
RESET
B/>
x/Z
SIGNAL
GENERATOR
IC420
DP
39
DM
40
USBSW
42
D901
USBEN
35
RV301
PHONE
HEADPHONE AMP
LEVEL
IC503
5
LIN
LOUT
7
3
RIN
ROUT
1
2
HEADPHONE
MUTING
Q451
D301
17
+5V
+3.3V
D422
D421
REGULATOR
IC402
BT420
LITHIUM
VOLTAGE
BATTERY
DETECT
IC401
+3.3V
SWITCHING
SWITCHING
BD+3.3V
REGULATOR
REGULATOR
Q400
IC933
IC400
+2.6V
D+2.6V
REGULATOR
A+5V
IC926
–5V
+5V
A–5V
REGULATOR
REGULATOR
IC451
IC450
37
37
CN4
USB
2
USB+
3
USB–
1
VBUS
CN200
ANALOG OUT
J180
PHONES
• SIGNAL PATH
: PLAY
: REC
+9V
J400
THP400
–
+
DC IN 9V
MDS-NT1
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