THC7984 Datasheet, PDF (16/45 Pages) THine Electronics, Inc. – 10-bit 3-channel Video Signal Digitizer

THC7984_Rev.2.0_E
Sync Signal Flow
< Sync Processing Block Diagram >
HSYNC0
HSYNC1
SOGIN0
SOGIN1
VSYNC0
VSYNC1 CSYNC
CLAMP
R31[1]
DEMUX
R12[3]+R12[1:0]
R1F[4]
1/2 x Pixel Clock _R1C[4:3]
MUX
R13[5]
POL
HSYNC
Filter
Filtered HSYNC
MUX
PLL COAST
External Clock
Pixel Clock
PLL
MUX
DATACK
CSYNC
3-level Sliced SOGIN
2-level Sliced SOGIN1
2-level Sliced SOGIN0
Raw HSYNC
Internal
Oscillator
MUX
R1B[6:5]
POL
R1B[7]
Regenerated HSYNC
Internal Oscillator Clock
Regenerated HSYNC
HO
R1E[7:6]
SOG
Slicer
R12[3]+R12[1:0]
R13[4]
MUX
POL
External REFCLK
Internal Clamp Pulse
R16[1]
POL
R16[2]
MUX
Sync
Processor
Raw HSYNC
Filtered HSYNC
MUX
VO
Regenerated VSYNC
Raw VSYNC
Filtered VSYNC
R1E[5:4]
MUX
R1E[0]
POL
Regenerated FIELD
R1E[3:1]
R1E[0]
POL
FO
DE
MUX
IRQ
Clamp Pulse
SOGOUT
R13[2]
POL
HSOUT
R13[1]
POL
VSOUT
O/E FIELD
R04[1:0]
DEMUX
EXTCLK/COAST
External Clamp Pulse
Internal Clamp COAST
R16[3]
POL
External COAST
R16[0]
MUX
Clamp COAST
R16[4]
MUX
Internal PLL COAST
PLL COAST
External Clock
POL _{Polarity Select}
MUX _Multiplexer
DEMUX Demultiplexer
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THine Electronics, Inc.