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)