ml86v7668a Oki Semiconductor, ml86v7668a Datasheet - Page 26

• Manufacturer Part Number: ml86v7668a
• Description: Ntsc/pal/secam Digital Video Decoder
• Manufacturer: Oki Semiconductor

ITU-R BT.656-4 output:
Output is performed based on BT.656 of the ITU standards. Since sync signal information (SAV, EAV) is
multiplexed with video data, for the interface that complies with BT.656, data can be transferred by connecting to
8-bit data lines, without connecting to the sync signal.
(When ITU-R BT.601 samplling mode is selected)
Note: When operating in asynchronous sampling mode, digital lines 1716T (NTSC, 525) and 1728T (PAL, 625)
OKI Semiconductor
will change due to a sampling error.
In FIFO mode, the pixel count correction function ensures that there is no fluctuation in the pixel count
between active lines, but the line immediately following the fall of VVALID will change due to a FIFO
reset.
In particular, when non-standard signals such as VTR signals are input, the line immediately following the
fall of VVALID will vary greatly in accordance with the degree of the instability of the input signal. Where
the sampling error is large, the line will change immediately before the fall of VVALID.
In addition, in the case of such signals as non-standard signals where the line count increases or decreases
with respect to the reference, even EAV and SAV may not be guaranteed.
Y[7:0]
HSYNC_L
HVALID
4T
Digital line blanking
276T (NTSC 525)
288T (PAL 625)
Hblank
4T
Cb0 Y0 Cr0 Y1 Cb2 Y2 Cr2 Y3 Cb4 Y4 ------- Cr718 Y719
Digital line
Multiplexed video data
1440T (PAL/NTSC)
Digital active line
Active pixels
Video data block
Total pixels
SAV:
EAV:
T:
Start of active video timing reference code
End of active video timing reference code
Clock period 37ns (1/27MHz)
FEDL86V7668A-01
120T
ML86V7668A
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