參數(shù)資料
型號: AK4704
廠商: Asahi Kasei Microsystems Co.,Ltd
英文描述: 2ch 24bit DAC with AV SCART switch
中文描述: 2通道24位DAC,具有影音SCART開關(guān)
文件頁數(shù): 38/44頁
文件大?。?/td> 440K
代理商: AK4704
ASAHI KASEI
AKM CONFIDENTIAL
[AK4704]
Rev. 0.5
2004/1
- 38 -
Register Name
Addr
D7
D6
D5
D4
D3
D2
D1
D0
08H
SB/FB monitor
R/W
default
0
0
0
0
VMON
FVCR
SVCR1
SVCR0
READ
0
0
0
0
0
0
0
0
SVCR1-0: VCR Slow blanking status monitor
SVCR1-0 reflect the voltage at VCRSB pin only when the VCRSB is in the input mode.
When the VCRSB is in the output mode, SVCR1-0 hold previous value.
VCRSB pin input level
< 2V
4.5 to 7V
(Reserved)
9.5<
Table 25. VCR Slow Blanking monitor
FVCR: VCR Fast blanking input level monitor
This bit is enabled when TVFB bit = “1”.
VCRFB pin input level
<0.4V
SVCR1
0
0
1
1
SVCR0
0
1
0
1
FVCR
0
1
1 V<
Table 26. VCR Fast Blanking monitor (Typical threshold is 0.7V)
VMON : Video input monitor
0 : No video signal detected via TVVIN pin and VCRVIN pin.
1 : Detects video signal via TVVIN pin OR VCRVIN pin.
Addr
Register Name
D7
D6
D5
D4
D3
D2
D1
D0
09H
Monitor mask
R/W
default
0
0
0
0
MVMON
R/W
1
MFVCR
MSVCR
0
0
0
0
0
0
0
0
MVMON: Video input monitor mask.
Please refer the Table 24.
MFVCR: FVCR Monitor mask.
0 : The INT pin reflects the change of MFVCR bit. (default)
1 : The INT pin does not reflect the change of MFVCR bit.
MSVCR: SVCR1-0 Monitor mask.
0 : The INT pin reflects the change of SVCR1-0 bit. (default)
1 : The INT pin does not reflect the change of SVCR1-0 bit.
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