52
Fig. 6-7 QY03 TC9092AF internal block diagram
CLAMP
MPX
AD
AD
Sub screen
video input
FILTER FACTOR OPERATION/
GENERATION (
K
GEN)
HORIZONTAL
INTERPORATION
FILTER (HFB)
HORIZONTAL
FOLD SIGNAL
ELIMINATING
FILTER (HFA)
VERTICAL FOLDED
ELIMINATION
INTERPORATION FILTER
(1H MEMORY (
1
2BIT)
) (
V
)
YC DELAY
ADJUSTMENT
BETW
EEN Y/C
(DAJA
)
CLOCK
GENERATION
(SUB)
CLOCK GENERATION
(MAIN)
PROGRAM DATA MEMORY
(16k BIT + 3k BIT)
CU
(CONTROL UNIT)
I
2
C
INTERFACE
I
2
C
DATA
REARRANGE
MENT
(W)
PICTURE
MEMORY
(2M B
IT)
SUB SAMPLE PIT FILLING (C)
DELAY ADJUSTM
E
NT (DAJB)
TELTEXT DETECTION (
J
)
1H MEMORY (11BIT)
FRAME SIGNAL
GENERATION
(WAKU)
FRAME
SIGNAL
MULTIPLEX
SW
DA
Y
LC
LC
H, V (Sub)
H, V (M
ain)
Ys
Y
R-Y
B-Y
R-Y
B-Y
DATA
REARRANGE
MENT
(R)
