AK8826VN Datasheet, PDF (1/157 Pages) Asahi Kasei Microsystems – HD/SD Multi Format Video Encoder with 3ch DAC

[AK8826VN]
AK8826VN
HD/SD Multi Format Video Encoder with 3ch DAC
General Description
The AK8826 is a HD/SD TV Video Encoder with onchip 3-channel 10bit DAC.
As input data, in SDTV encoder mode, SMTE-125M / ITUR-R.BT601, 656 compatible Y/Cb/Cr 4:2:2 formats (8bit) are
accepted and in HDTV encoder mode, SMPTE-274M (1080i), SMPTE296M (720p) compatible Y/Cb/Cr 4:2:2 formats (8bit x 2)
are accepted.
As input data capture method, either a Synchronous mode to be made by detecting encoded EAV signal or a mode to
synchronize with externally-fed H/V SYNC signal is selectable.
Outputs of CVBS / SDY / SDC and HDY / HDPB / HDPR and R / G / B analog signal can be output exclusively.
VBI signal can be also superimposed on output in addition to Video signals by register setting.
AK8826 supports I2C compatible interface as Micro-Processor interface.
Features
Component Video Encoder
- Compatible Input Data
SMPTE125M-1995 / ITU-R BT601 (525i/625i)
SMPTE293M-1996 / ITU-R BT1358 (525p/625p)
SMPTE274M-1998 (1080i)
SMPTE296M-2001 (720p)
- Input Signal Format (525i / 625i, 525p / 625p, 1080i, 720P)
Y/Cb/Cr 4:2:2 (8bit x 1: 525i/625i)
Y/Cb/Cr 4:2:2 (8bit x 2: 525p/625p/1080i/720p)
RGB 6:6:6
RGB 5:6:5
- Input Clock
27MHz (525i / 625i / 525p / 625p) / 74.25MHz (1080i/720p)
- Output Signals
Y/Pb/Pr Interlace
Y/Pb/Pr Progressive
(EIA 770.2, EAI 770.3)
- Input Signal Synchronization
ITU-R.BT 656 I/F (EAV Decode)
Slave operation by HSYNC / VSYNC
(525i: ITU-R. BT601 Compatible 625i / 525p / 625p / 1080i / 720p; CEA-861-D Compatible)
- VBID (CGMS-A), CC/XDS, WSS, CEA-805-B (Type A/B)
- Internal Color bar Generator
- Internal Black Burst Generator
- Adjustable Y / Pb / Pr Delay Function
NTSC / PAL Composite Video Encoder
- NTSC-M, PAL-B, D, G, H, I. M, N Encoding
- Composite Video Output / S-Video Output
- Compatible Input Data
SMPTE125M-1995 / ITU-R BT601(525i/625i) Y/Cb/Cr 4:2:2 (8bit x 1)
RGB 6:6:6
RGB 5:6:5
- Input Signal Synchronization
ITU-R.BT 656 I/F (EAV Decode)
Slave operation by HSYNC / VSYNC
( 525i / 625i: ITU-R. BT601 Compatible)
- Input Clock
27MHz
- VBID(CGMS-A), CC/XDS, WSS
MS0972-E-01
1
2008/12