THC7984 Datasheet, PDF (26/45 Pages) THine Electronics, Inc. – 10-bit 3-channel Video Signal Digitizer

THC7984_Rev.2.0_E
*
Sync on Video (2-Level)
Sync on Video
Extracted Sync
<2-Level Slice / 3-Level Slice>
Sliced at SOG Slice Level (R1A[3:0])
Sync on Video (3-Level)
Sync on Video
Sliced at Pedestal Level
Extracted Sync
*When setting the input sync signal as Sync on Video (2-level) at the time of 3-level sync signal input, (R12 [1:0],
=10b) , it is sliced by the SOG slicer threshold.
R1B[7] SOGOUT Output Polarity
Select the output polarity of SOGOUT-pin.
0: Output polarity is Active-Low.
1: Output polarity is Active-High.
* The polarity of signals available from SOGOUT-pin (Raw HSYNC, Regenerated HSYNC, and Filtered HSYNC) is
selected.
R1B[6:5] SOGOUT Output Signal
Select the output signal from SOGOUT-pin. The source signal of the output is HSYNC selected by the combination of
Input Port Select (R12[3]) and Input Sync Type Select (R12[1:0]) .
00b: Raw HSYNC --- Buffered signal of the HSYNC input.
01b: Regenerated HSYNC --- This HSYNC is generated by using the internal oscillator (about 40 MHz) from Raw
HSYNC. It has jitter of several internal oscillator clock cycles.
10b: Filtered HSYNC --- By the HSYNC Filter, the pulses which are not related to Horizontal period is eliminated.
11b: Reserved
Horizontal Period
Input HSYNC
Raw HSYNC
Regenerated HSYNC
Filtered HSYNC
< Output Signal from SOGOUT>
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