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AK8825
NTSC/PAL数字视频编码器
The AK4646 features a stereo CODEC with a built-in Microphone-Amplifier and Speaker-Amplifier. Input circuits include a Microphone-Amplifier and an ALC (Auto Level Control) circuit, and Output circuits include a Speaker-Amplifier. These circuits are suitable for portable application with recording/playback function. The AK4646 is available in a 32pin QFN, utilizing less board space than competitive offerings.
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Component Video Encoder
(1) Compatible Input Data
SMPTE125M-1995 / ITU-R BT601 (525i/625i)
SMPTE293M-1996 / ITU-R BT1358 (525p/625p)
SMPTE274M-1998 (1080i)
SMPTE296M-2001 (720p)

(2) 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

(3) Input Clock
27MHz (525i / 625i) / 74.25MHz (1080i/720p)

(4) Output Signals
Y/Pb/Pr Interlace (EIA 770.1) (EIA 770.3)
Y/Pb/Pr Progressive (EIA 770.2) (EIA 770.3)

(5) Input Signal Synchronization
ITU-R.BT 656 I/F (EAV Decode)
Slave operation by HSYNC / VSYNC
(525i: ITU-R. BT601 Compatible 625i / 525p / 1080i / 720p;
CEA-861-D Compatible)

(6) VBID (CGMS-A), CC/XDS, WSS, CEA-805-B (Type A/B)

(7) Macrovision 525i / 625i Rev.7.1.1L, 525p/625p Macrovision Progressive 1.2

(8) Internal Color bar Generator

(9) Internal Black Burst Generator

(10) Adjustable Y / Pb / Pr Delay Function


NTSC / PAL Composite Video Encoder
(1) NTSC-M, PAL-B, D, G, H, I. M, N Encoding

(2) Composite Video Output / S-Video Output

(3) 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

(4) Input Signal Synchronization
ITU-R.BT 656 I/F (EAV Decode)
Slave operation by HSYNC / VSYNC
( 525i: ITU-R. BT601 Compatible)

(5) Input Clock
27MHz

(6) VBID(CGMS-A), CC/XDS, WSS

(7) Macrovision Rev. 7.1.L


RGB Video DAC
(1) RGB output

(2) Input Data Format
RGB 6:6:6
RGB 5:6:5

(3) Input Clock
54MHz (max)


Common Specification
- 10bit DAC x 3ch (max operating speed 150MHz)
- I 2 C BUS I/F (400kHz) compatible
- Power Down mode
- Internal VREF Circuit
- 3.0V / 1.8V VCC
- 57pin FBGA (5mm x 5mm)


(Note) This device is protected by U.S. patent numbers 4,631,603, 4,577,216, and 4,819,098, and other intellectual rights. The use of Macrovision's copy protection technology in the device must be authorized by Macrovision and is intended for home and other limited pay-per-view use only, unless otherwise authorized in written by Macrovision. Reverse engineering or disassembly is prohibited.
AK8825 BLOCK DIAGRAM
AK4523 Diagram
Data Sheet PDF
Datasheet

Data Sheets
Rev. Rev-E-00 2008/03
PDF : 1543KB / 162pages

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