ASAHI KASEI
[AK8856VN ]
AK8856VN
NTSC/PAL Video Decoder
General Description
The AK8856 decodes NTSC or PAL composite video signals into digital video data. The outputs are ITU-R BT. 601 level compatible Y, Cb and Cr signals. The decoded result is scaled to 601, VGA (interlaced output), CIF, QVGA, QCIF, rotated QVGA , or rotated CIF(progressive). Information including closed caption, VBID, and WSS are encoded in the video signal can be read out externally. The AK8856 is controlled by through an.
NTSC/PAL Video Decoder
ASAHI KASEI
[AK8856VN ]
AK8856VN
NTSC/PAL Video Decoder
General Description
The AK8856 decodes NTSC or PAL composite video signals into digital video data. The outputs are ITU-R BT. 601 level compatible Y, Cb and Cr signals. The decoded result is scaled to 601, VGA (interlaced output), CIF, QVGA, QCIF, rotated QVGA , or rotated CIF(progressive). Information including closed caption, VBID, and WSS are encoded in the video signal can be read out externally. The AK8856 is controlled by through an I2C interface.
Features
• • • • • • • • NTSC-M, NTSC-4.43 / PAL- B, D, G, H, I, N, Nc, M, 60 composite signal decoding process 10 Bit ADC (sampling at 24.5454MHz or 27MHz) Integrated PGA (0dB ~ 12dB) Automatic color control (ACC) function Adaptive automatic gain control (AGC) function 1D or 2D YC separation Phase compensation for PAL Output interface - ITU-R BT.656 output format (4:2:2 8-bit parallel output with EAV / SAV) - Camera interface - Interface with HD / VD / DVALID signals Closed caption decoding function (read by register setting) VBID (CGMS-A) decoding function (CRCC decode) (read by register setting) WSS decoding function (read by register setting) Macrovision signal detect function Power-down function 2-channel analog input selector I2C control compatible Core voltage (AVDD, DVDD) 1.65 - 1.8V I/O voltage (PVDD) 1.65 - 3.3V Package: 48 QFN or 41 BGA (see VG datasheet)
• • • • • • • • • •
* The output that meets the ITU-R BT.656 standard according to the fineness of the.