參數(shù)資料
型號(hào): AK4706
廠商: Asahi Kasei Microsystems Co.,Ltd
英文描述: 2ch 24bit DAC with AV Switch & HD/SD Video Filter
中文描述: 2通道24位DAC,帶有AV系列開(kāi)關(guān)
文件頁(yè)數(shù): 33/53頁(yè)
文件大?。?/td> 597K
代理商: AK4706
ASAHI KASEI
[AK4706]
MS0507-E-00
2006/05
- 33 -
4. Blanking Control, S1/S2 DC Control
When the SDC bit= “0”, the AK4706 supports Fast Blanking signals and Slow Blanking (Function Switching) signals for
TV/VCR SCART. When the SDC bit= “1”, the AK4706 supports S1/S2 mode.
SDC bit: SCART-S1/S2 Control
0: SCART Fast/Slow Blanking Mode
1: S1/S2 Mode
Input/Output Control for Fast/Slow Blanking
FB1-0: TV Fast Blanking output control (0AH: D4, 07H: D1-D0)
Input
SDC bit
FB1 bit
FB0 bit
0
0
0
0
0
1
0
1
0
0
1
1
1
0
0
1
0
1
1
1
0
Same as VCR FB input (5V/2.2V/0V)
1
1
1
(Note: Load resistance is min.150ohm for SDC bit =”0”, min.100kohm for SDC bit =”1”)
Table 25. TV Fast Blanking output
SBT1-0: TV Slow Blanking output control (0AH: D4, 07H: D3-D2)
Input
SBT1
bit
bit
0
0
0
0
0
1
0
1
0
0
1
1
1
0
0
1
0
1
1
1
0
1
1
1
(Note: Load resistance is min.10kohm for SDC bit =”0”, min.100kohm for SDC bit =”1”)
Table 26. TV Slow Blanking output
SBV1-0: VCR Slow Blanking output control (07H: D5-D4)
SBV1
SBV0
VCRSB pin Output Level
0
0
0
1
1
0
1
1
(Note: Load resistance is min.10kohm)
Table 27. VCR Slow Blanking output
Output
TVFB pin Output Level
<0.4V (default)
4V<
Same as VCR FB input (4V/0V)
(Reserved)
<0.4V
1.55V to 2.4V
3.5V<
Output
SDC bit
SBT0
TVSB pin Output Level
<2V (default)
5V to 7V
(Reserved)
10V<
<0.4V
1.55V to 2.4V
(Reserved)
3.5V<
<2V (default)
5V to 7V
(Reserved)
10V<
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