AK8826 Datasheet, PDF (19/157 Pages) Asahi Kasei Microsystems – HD/SD Multi Format Video Encoder with 3ch DAC

(5-4) Setting to High Speed Video DAC mode after power-up
After initializing with PDN-pin = Low, AK8826 is Composite Video Encoder mode.
Set to Component Video Encoder mode by register setting. (Set CONVMOD[1:0]-bit =[10])
(r) shows Register-bit
Power
Supply
PDN
CLKIN
PLLPDN (r)
CONVMOD[1:0] (r)
DTRSTN (r)
Register set (r)
DACnEN (r)
DATA
t >100ns ⁽¹⁾
54MHz (max)
(2)
t >100clk
Low
0x00
0x10
(3)
[AK8826VN]
AVDD:2.7V
DVDD:1.65V
PVDD:1.65V
Fig. 14 Power-Up sequence (To set High Speed Video DAC mode after power-up)
(1) PDN-pin should be Low states more than 100ns after power-up.
(2) Set to High Speed DAC mode after 100clock count with Clock Input to CLKIN-pin.
(3) Set to DTRSTN-bit should be High after setting High Speed Video DAC mode
MS0972-E-01
19
2008/12