AK8856 Datasheet, PDF (23/105 Pages) Asahi Kasei Microsystems – NTSC/PAL Digital Video Decoder

ASAHI KASEI
[ AK8856 ]
(12) Variable Frame-Rate Function
* Frame rates of 30 / 15 / 7.5 frames per second are selectable for NTSC video
* Frame rates of 25 / 12.5 / 6.75 frames per second are selectable for PAL video
(13) Output Picture Size
- VGA
(640 X 480 - interlaced output)
- QVGA
(320 X 240)
- CIF
(352 X 288)
- QCIF
(176 X 144)
- 601
(NTSC: 720 X 480 / PAL: 720 X 576 - interlaced output)
- rotated QVGA
(240 X 180)
- rotated CIF
(288 X 216)
(14) Other Functions
- Black level signal (Y = 16, Cb / Cr = 128) is output in self-operating mode when no input signal is present
(Blue back output is also possible)
- No signal input detection function
- I²C host interface
- Power-down function
- Decoding function for closed caption, VBID (CGMS-A 525 line), WSS signal (625 line signal). CRCC added
to CGMS-A is decoded by the AK8856.
Rev-01
23
2007/03