AK8851 Overview
Description
The AK8851 is an integrated chip that decodes NTSC, PAL, SECAM composite and S Video signals. The digital output of the AK8851 is in Y, Cb, Cr signal format which compliances with ITU-R BT.601 and ITU-R BT.656* specifications.
Key Features
- NTSC-M, NTSC-4.43/PAL-B, D, G, H, I, N, Nc, M, 60/SECAM Composite signals and S Video signal decoding function
- On-chip dual 10 Bit ADCs (27 MHz operation)
- Built-in PLLs for input-signal-synchronized clock generation (Line-locked PLL and Frame-locked PLL)
- On-chip Programmable Gain Amp (PGA), ranging from 0 dB to 12 dB
- Auto Color Control (ACC)
- Auto Gain Control (AGC)
- Automatic input signal distinction function
- Adaptive 3-/5-line (NTSC/PAL) YC Separation
- Phase compensation function for PAL signal decoding
- ITU-R BT.656 format output (4:2:2 8 Bit parallel output with EAV / SAV)/ 16-Bit output is also available
