DTR-4.6
IC BLOCK DIAGRAMS AND DESCRIPTIONS
ADV7172 (Digital PAL/NTSC Video Encoder with Six DACs (10-Bits))
BLOCK DIAGRAM
PIN LAYOUT
14
48
HSYNC
CLOCK
16
BLANK
41
TTX
39
SCRESET/RTC
GND
12,13,18,26,31,47
40
TTXREQ
P0-P7
(COLOR
DATA)
1
11
19
27
30
32
34
46
2
|
9
VAA
DAC A
44
RESET
15
FIELD/
VSYNC
VIDEO TIMING
GENERATOR
TELETEXT
INSERTION BLOCK
BRIGHTNESS AND
CONTRAST CONTROL
LUMA
PROGRAMMABLE
FILTER
SHARPNESS
FILTER
PROGRAMMABLE
CHROMA
FILTER
REAL-TIME
CONTROL CIRCUIT
SIN/COS
DDS SLOCK
MODULATOR
MULTI-PLEXER
YUV TO
RGB
MATRIX
YUV
LEVEL
CONTROL
BLOCK
10BIT
DAC
HUE
CONTROL
ADD SYNC
INTERPOLATOR
4:2:2 TO
4:4:4
INTER-
POLATOR
43
PAL_NTSC
20
SCLOCK
21
SDATA
17
35
ALSB
10
CSO_HSO
45
VSO
14
CLAMP
VCrCb
TO
YUV
MATRIX
8
8
10
10
10
10
10
10
10
10
DAC B
33
DAC C
29
DAC E
25
DAC F
24
DAC D
28
RESET1
38
COMP1
36
RESET2
22
VREF
37
COMP2
23
10
10
10
10
Y
8
U
8
V
8
8
ADD BURST
SATURATION CONTROL
INTERPOLATOR
MULTI-PLEXER
10BIT
DAC
10
10BIT
DAC
DAC
CONTROL
BLOCK
10
10BIT
DAC
10
10BIT
DAC
10
10BIT
DAC
10
DAC
CONTROL
BLOCK
I C MPU PORT
2
48
1
2
3
4
5
6
7
8
9
10
11
12
V
AA
P0
P1
P2
P3
P4
P5
P6
P7
V
AA
GND
COMP1
DAC A
V
AA
DAC B
V
AA
GND
V
AA
DAC C
DACD
V
AA
GND
DAC E
36
35
34
33
32
31
30
29
28
27
26
25
47 46 45 44 43 42 41 40 39 38 37
CLOCK
GND
V
AA
VSO
RESET
PAL_NTSC
CLAMP
TTX
TTXREQ
SCRESET/RTC
R
ESET1
V
REF
GND
HSYNC
FIELD/VSYNC
BLANK
ALSB
GND
V
AA
SCLOCK
SDATA
R
ESET2
COMP2
DAC F
13 14 15 16 17 18 19 20 21 22 23 24
TOP VIEW
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