22
22
HTC-NX300
MPEG VIDEO/AUDIO DECODER,
VIDEO SIGNAL PROCESSOR
IC505
MCLK 33.8MHz
DATA, BCK,
LRCK, C2PO
A
B
(Page 21)
(Page 21)
DIGITAL FILTER,
D/A CONVERTER
IC509
X503
27MHz
VCLK
NTB
HSY
VSY
HSYNC
VSYNC
HSYNC
VSYNC
PIXCLK
XT2
VOUTL
DATA
768FSO
384FSO
MCKO
BCK
LRCK
DA-DATA
DA-BCK
DA-LRCK
DA-XCLK
VCK-IN
VDATA0-VDATA7
SYSCLK
VOUTR
XT1
MD
MC
ML
DATA
CLK
LATCH
RSTB
4
3
5
6
LEVEL
SHIFT
IC501
CD-ROM
INTERFACE
CIRCUIT
CD-DATA
CD-BCK
CD-LRCK
CD-C2PO
MA0-MA7
MD0-MD5
D0-D15
HA0-HA2
HD0-HD7
A0-A17
A0-A11
A0-A10
D0-D7
D0-D15
A11-A17
A0-A2
D0-D7
DATA
BCK
LRCK
C2PO
MPEG
AUDIO
DECODER
MPEG
VIDEO
DECODER
VIDEO
PROCESS
CIRCUIT
AUDIO
INTERFACE
CIRCUIT
MPEG
SYSTEM
DECODER
82 90 86 85 35 36 79
15 16
13
51
22
28
29
27
15
37
45
39
57 64 1
39 20
15
93
21
73
13
47 46 44
24
128
206 207 208
167
169
178
177
157
158
166
161
104, 106, 110, 112, 111, 108,
105, 102, 99, 96, 100, 98, 114,
116, 118, 120, 121, 122, 124
54, 58, 60, 64, 68,
72, 74, 78, 76, 73, 70,
66, 62, 59, 56, 53,
202 – 204
2 – 8, 10
71 – 73
81 – 88
2 – 4, 6, 8 – 11
CPU INTERFACE
D-RAM/ROM INTERFACE
ADDRESS BUS
DATA BUS
15 16 17 18 14 80 84
22
12 – 5, 27, 26, 23
13 – 15, 17 – 21
25, 4, 28, 29, 3, 2, 30
21 – 24, 27 – 32, 20, 19
A0-A10, BA
DQ0-DQ15
D-RAM
IC507
CD MECHANISM CONTROLLER
IC505 (1/2)
ON SCREEN
DISPLAY CONTROLLER
DIGITAL RGB ENCODER
IC514
PROGRAM ROM
IC508
A0-A10
O0-O7
A11-A17
A2-A0
XOUT
XIN
NT/PAL
NT/PAL OUT
DF LATCH
CLK1
DATA1O
OSD CS
I2C/RX
DATA
CLK
I2C/TX
TEST LED
X501
10MHz
D0-D7
LATCH
OSC IN
B-BLK
OSD-SW
ROSD
GOSD
BOSD
BLK
R
G
B
V-R
V-G
V-B
BLK
R
G
B
CLK
DATA
RESET
CS
2, 3, 5, 6, 8, 9, 11, 12, 39
40, 42, 43, 45, 46, 48, 49
142, 143, 145, 148,
150, 152, 154, 155
A0-A2
LDQM
SD-CLK
UDQM
LDQM
SD-CAS
SD-RAS
SD-CS0
MWE
ROM-CS
WAIT
RESET
INT
CS
R/W
RD
8830 RESET
BUS-XRD
BUS-XWR
8830-CS
8830 HINT
BUS-XRDY
UDQM
CLK
CAS
RAS
CS
WE
CE
CLK
UDQM
LDQM
CS
RAS
CAS
WE
SD-CLK
UDQM
LDQM
CS
RAS
CAS
WE
CE
CE
D0-D7
22
33
31
28
1
3
2
15
16
17
18
4
29
30
NTSC
AUTO
PAL
S501
SYSTEM SELECT
D502
(SELF DIAGNOSIS)
18
17
19
21
20
4
8 7
10
9
OSC
BUFFER
IC504
TIMING CONTROL/
CLOCK GENERATOR
MODE
CONTROL
INPUT
INTERFACE
CIRCUIT
DIGITAL
FILTER,
NOISE
SHAPER
CIRCUIT
D/A
CONVERTER
LOW-PASS
FILER
14
11
LOW-PASS
FILER
IC101
CD. L
3
CD. R
2
SYSTEM CONTROL
(TO STR-NX300AV)
CN101 (1/4)
IIC DATA
14
DATA
CLK
DATA,
CLK
(Page 24)
IIC CLK
17
SYSTEM CONTROL
(TO STR-NX300AV)
CN101 (2/4)
24
1
20
19
8
CLOCK
CONTROL
PROTECTIVE
CIRCUIT
INTERFACE
CIRCUIT
ADDRESS
REGISTER
DATA
SELECTOR
VIDEO
RAM
CHARACTOR ROM
HORIZONTAL/
VIRTICAL
CONTROL
DISPLAY/BACKGROUND
CONTROL
HSYNC
VSYNC
OUTPUT CONTROL
D
VIDEO TIMING CONTROL
MODE/FIELD/FLAME CONTROL
SUB CARRIER BURST GENERATOR
MIX
SIGNAL
SYNC
BURST
Y-LEVEL
ADJ.
CHROMA
GEN.
Y/C FILTER
LATCH
U/V
FILTER
RGB
OSD
D/A CONVERTER
1
C
COUT
YOUT
VOUT
Y
2
3
4
S VIDEO OUT
J301
VIDEO OUT
J302
YUV0
YUV7
05
• SIGNAL PATH
: CD PLAY (AUDIO)
: CD PLAY (VIDEO)
HSYNC
VSYNC
HSYNC
VSYNC
VIDEO FREQUENCY
(27MHz)
CT503
(Page 21)
C
RESET
7-2.
BLOCK DIAGRAM – AUDIO/VIDEO CD Section –
Содержание HTC-NX300
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