General Description
 The AK8817/18 is a Digital Video Encoder for Portable and Mobile application. ITU-R BT.601 level compatible Y, Cb,and Cr signals which correspond to 27MHz or square pixel are encoded into either NTSC or PAL compatible composite video signal. Interface is made in HSYNC-, VSYNC- synchronized slave-mode operation or ITU-R.Bt656. AK8817/18 has 75ohm driver with LPF.
 It is possible to encode the VBID(CGMS-A) and WSS signal on the output video signal.  Host Control interface is I2C Bus I/F.

FEATUREs
•  NTSC-M, PAL-B, D, G, H, I Composite Video encoding
•  Y:Cb:Cr 4:2:2
•  H/V Slave Operation / ITU-R.BT656 Interface
•  Y filtering: 2 x over-sampling
•  C filtering: 4 x over-sampling
•  9bit DAC
•  Setup
•  Macrovision Rev.7.1.1L （*1）AK8818）
•  VBID ( CGMS-A ) Compatible
•  WSS Compatible
•  Operation Clock rate : 27MHz or Square-pixel Clock rate(NTSC:24.5454MHz/PAL29.50MHz)
•  Video Amp with LPF
•  On-chip Color Bar Output
•  Black Burst Output 
•  Power Supply (AVDD, DVDD) 2.7V - 3.3V
•  I/F Power Supply (PVDD) 1.6V - 3.3V
•  Power Down mode
•  Monolithic CMOS
•  41pin FBGA(4mm x 4mm) / 48pin LQFP (7mm x 7mm)   (*2)