HMP8117_07 Datasheet, PDF (4/45 Pages) Intersil Corporation – NTSC/PAL Video Decoder

Digital Processing Block Diagram
C[7:0]
Y[7:0]
CLK2 FREQ SELECT
(24.54, 27.0 or 29.5MHz)
HUE
ADJUST
LOCK
STATUS
CHROMA
PLL NCO
CHROMA
PLL LOOP
FILTER
CHROMA
PHASE
DETECTOR
LINE LOCKED
NCO
4FSC
CLOCK
CLK2 TO
4FSC RATIO
CHROMA DATA
CHROMA
AGC AND
SATURATION
ADJUST
M
U
C, CVBS
X
INPUT
SAMPLE
RATE
CONVERTER
LINE
DELAY
COMB
FILTER
CHROMA ^{U, V}
DEMOD
HORIZONTAL
Y
LUMA DATA
M
U
X
AND VERTICAL
SHARPNESS
ADJUST
VSYNC
DETECT
FIELD AND
VSYNC
TO FIFO
U/V TO CbCr
COLOR SPACE
CONVERTER,
COLOR KILLER
CHROMA
TRAP
NORMAL
LP FILTER
CHROMA
LP FILTER
ENABLE
M
U
X
CbCr
OUTPUT
SAMPLE
RATE
CONVERTER
Y
LINE LOCKED
PLL LOOP
FILTER
P[15:0]
SYNC
STRIPPER,
BRIGHTNESS _DATA
AND
CONTRAST
ADJUST, ^TIMING
RGB
CONVERSION
OUTPUT
TIMING
AND
DATA
FIFO
HSYNC
VSYNC
BLANK
FIELD
DVALID
VBIVALID
VBI STATUS
VBI DETECTION
AND DECODING LOGIC
SHARPNESS
ADJUST
MACROVISION
DETECT
MV STATUS
FILTER
SELECT
STANDARD
SELECT