AK8825 Datasheet, PDF (139/162 Pages) Asahi Kasei Microsystems – HD/SD Multi Format Video Encoder with 3ch DAC

DAC Control Register(R/W) [Sub Address 0x0D]
[Common Register for all Function block]
to set on / off of DACs
Sub Address 0x0D
bit 7
bit 6
Reserved
Reserved
0
0
bit 5
OLVL
0
bit 4
bit 3
DTRSTN
CVBSSEL
Default Value
0
0
bit 2
DAC3EN
0
[AK8825]
default Value 0x00
bit 1
bit 0
DAC2EN
DAC1EN
0
0
BIT Register Name
bit 0
DAC1EN
DAC1 Enable bit
bit 1
DAC2EN
DAC2 Enable bit
bit 2
DAC3EN
DAC3 Enable bit
bit 3 CVBSSEL CVBS Select bit
bit 4 DTRSTN Data Clear bit
bit 5
OLVL
Output Level bit
bit 6
~
Reserved Reserved bit
bit 7
R/W
Definition
to control DAC1 ON/OFF
R/W 0: OFF (Output pin is Hi-z States)
1: ON
to control DAC2 ON/OFF
R/W 0: OFF (Output pin is Hi-z States)
1: ON
to control DAC3 ON/OFF
R/W 0: OFF (Output pin is Hi-z States)
1: ON
to select the DAC for CVBS output
R/W 0: DAC3 outputs CVBS
1: DAC1 outputs CVBS
to Reset all block
R/W 0: Initialize the circuit
1: to release initialized states
to control DAC output Level
R/W
This bit is valid at High Speed DAC mode.
0: to output about 1.28V at 0xFF code.
1: to output about 0.7V at 0xFF code.
R/W Reserved, write “0 “.
Rev-E-00
139
2008/03