Document
ASAHI KASEI
www.DataSheet4U.com
[AK8817/18]
AK8817/18
NTSC/PAL Digital Video Encoder
General Description
The AK8817 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 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 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) (Pb Free)
(Notice *) 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.
Rev.000
1
2007 / 03
ASAHI KASEI
www.DataSheet4U.com
[AK8817/18]
Block Diagram
CLKINV RSTN PDN SCL SDA VREF
CLKIN
CLK Generator u-p I/F Register Timing Controller VDI HDI D[7:0] Synchronization Control Input Data Control
CGMS
VREF Generator
IREF
SYNC Generator Y Cb Cr U Cos SubCarrier Generator Sin V C Chroma LPF Filter (x 2 Interpolator) TEST LOGIC 6dB AMP LPF
SAG VOUT
Y LPF Filter (x 2 Interpolator) 9-bit DAC
Cb/Cr LPF Filter (x 2 Interpolator)
DACOUT
Color Bar Gen B.B. Gen
UD[4:0]
PVDD PVSS DVDD DVSS
AVDD AVSS
TEST ATPG
Rev.000
2
2007 / 03
ASAHI KASEI
www.DataSheet4U.com
[AK8817/18]
Ordering Guide
41pin FBGA 41pin FBGA
AK8817VG AK8818VG
Pin Assignment
7 6 5 4 3 2 1 A B C D E F G
Bottom View
[AK8817 Pin Assignment]
A B C D E F G
1 NC AVDD VREF UD3 UD1 CLKINV NC
2 DACOUT AVSS IREF UD4 UD2 UD0 CLKIN
3 SAG BVSS INDEX DVSS DVDD
4 VOUT DVSS
5 DVDD PDN
D7 D6
D5 D4
6 RSTN SCL HDI PVSS D0 D3 D2
7 NC ATPG SDA VDI PVDD D1 TEST
TOP View
[AK8818 Pin Assignment]
A B C D E F G
1 NC AVDD VREF UD3 UD1 CLKINV NC
2 DACOUT AVSS IREF UD4 UD2 UD0 CLKIN
3 SAG BVSS INDEX DVSS DVDD
4 VOUT DVSS
5 DVDD PDN
D7 D5
D6 D4
6 RSTN SCL HDI PVSS D0 D3 D2
7 NC ATPG SDA VDI PVDD D1 TEST
TOP View
Rev.000
3
2007 / 03
ASAHI KASEI
www.DataSheet4U.com
[AK8817/18]
Pin Functional Description
AK8818 is different pin assignment from AK8817. Pin# Pin Name I/O Functional Outline Clock inp.