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Ë PD0264AM (TUNER µ-COM ASSY: IC2206)
OSD (On-Screen Display) IC
» Pin Assignment
AVSS
1
28 AVSS2
LPF
2
27 R
REF
3
26 G
OSCIN
4
25 B
OSCOUT
5
24 I
AVDD
6
23 AVDD2
ODD
7
22 BLK1
H
8
21 BLK2
( NC )
9
20 DC
( NC )
10
19 DVSS
XIIC
11
18 ( NC )
V
12
17 XCS
XRST
13
16 SDA
DVDD
14
15 SCL
» Block Diagram
AVDD
6
LPF
2
REF
3
Clock
Dot clock
generator
OSCIN
4
OSCOUT
5
AVSS
1
DC
H
Polarity
H
8
switching
V
Polarity
V
12
switching
ODD/
EVEN
O/E
judgment
ODD
7
XCS
17
SDA
16
Interface
SCL
15
2
I
C/three-wire
XIIC
11
XRST
13
DVDD
14
DVSS
19
AVDD2
23
AVSS2
28
61
R
Text RAM
Display
W
(288 words)
control circuit
OSD display
control
W
R
Font RAM
(4 fonts)
Wallpaper
display
control
Font RAM
(507 fonts)
R
W
Control
Area control
register
64LHP5000
PROJECTOR UNIT
20 DC
OSD shift
Edge/
register
shadow
Mixer
Wallpaper
shift register
R,G,B,I
22 BLK1
Halftone color
21 BLK2
decoding
24 I
25 B
RAMDAC
26 G
27 R
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