AK8855中文资料NTSC/PAL Digital Video Decoder数据手册AKM规格书

描述 Description

General Description
The AK8855 decodes the NTSC, PAL Composite Video signal into Digital code. Outputs are ITU-R BT. 601 Level compatible Y, Cb and Cr signals. Decoded results are scaled to QVGA/CIF sizes etc..
Output interface is camera-interface in ITU-R BT.656-alike output format. When such information as Closed Caption, VBID, WSS are encoded on the Video signal, each code can be read out externally.
When the Macrovision signal is super-imposed, its information can also externally be read out.

特性 Features

• NTSC-M / PAL- B, D, G, H, I Composite signal decoding process
• On-chip 10 Bit ADC (operation at 24.5454 MHz or 27 MHz )
• On-chip PLL ( 27 MHz clock generation from 24.5454 MHz )
• Pixel Position Correction function
• Selectable Output rate
• On-chip Anti-Aliasing Filter
• Auto Color Control (ACC) function
• Primary YC Separation
• Closed Caption decoding function ( to be output by register setting )
• WSS decoding function ( to be output by register setting )
• Power-down function
• Internal operating power supply 2.7 V ~ 3.3 V
• Package 57 FBGA