ak8825 AKM Semiconductor, Inc., ak8825 Datasheet - Page 4

• Manufacturer Part Number: ak8825
• Description: Hd/sd Multi Format Video Encoder With 3ch Dac
• Manufacturer: AKM Semiconductor, Inc.

With Register setting, AK8825 works as
1-1. Component Video Encoder Block
Rev-E-00
- Multi-Format Component Video Encoder (Component Video Encoder)
- NTSC/PAL Composite Video Encoder (Composite Video Encoder)
- High Speed Video DAC
Clock Rate
This Block described as Component Video Encoder Block in this datasheet.
CLK Rate D is only a case of D1(525i/625i) mode.
CLK Rate A
CLK Rate B
CLK Rate C
CLK Rate D
Generator
Clock Gen
Timing
From
Cb[7:0]
Cr[7:0]
From
Y[7:0
CLK Rate A
CLK Rate B
6.75MHz/13.5/27/54/74.25/148.5MHz
x2 Interpolation
D1( 525i /625i )
6.75MHz
13.5MHz
27MHz
54MHz
4:4:4
4:2:2
HD-Timing
Generator
to
Compensation
sin(x)/x
CLK Rate B
Fig. 2 Component Video Encoder Block
LPF-E
D2( 525P / 625P )
13.5MHz
27MHz
54MHz
-
LPF-D
LPF-F
x2
x2
CLK Rate C
4
*CLK Rate D
LPF-G*
LPF-H*
x2
x2
D3/D4(1080i/720P)
37.125MHz
74.25MHz
148.5MHz
-
CGMS-A
WSS
Generator
SYNC
Y[9:0]
to DAC
Pb[9:0]
to DAC
Pr[9:0]
to DAC
2008/03
[AK8825]