參數(shù)資料
型號(hào): AK4706VQ
廠商: ASAHI KASEI POWER DEVICES CORP
元件分類: DAC
英文描述: 2ch 24bit DAC with AV Switch & HD/SD Video Filter
中文描述: SERIAL INPUT LOADING, 24-BIT DAC, PQFP64
封裝: 0.50 MM PITCH, LEAD FREE, PLASTIC, LQFP-64
文件頁數(shù): 35/53頁
文件大?。?/td> 597K
代理商: AK4706VQ
ASAHI KASEI
[AK4706]
MS0507-E-00
2006/05
- 35 -
5. Monitor Options and INT function
Monitor Options (08H: D7,
D5, D2-D0)
The AK4706 has several detection functions. SVCR1-0 bits, FVCR bit, VCMON bit and TVMON bit reflect the input
DC level of VCR slow blanking, the input DC level of VCR fast blanking and signals input to TVVIN or VCRVIN pins.
SDC bit: SCART-S1/S2 Control
0: SCART Fast/Slow Blanking Mode
1: S1/S2 Mode
SVCR1-0 bit: VCR Slow blanking status monitor
SVCR1-0 bits reflect the voltage at VCRSB pin only when the VCRSB pin is in the input mode.
When the VCRSB is in the output mode, SVCR1-0 hold previous value.
Input
SDC bit
VCRSB pin input level
0
< 2V
0
4.5 to 7V
0
(Reserved)
0
9.5<
1
< 0.4V
1
1.4 to 2.4V
1
(Reserved)
1
3.5V<
Note: When SDC bit =”0”, VCRSB pin is connected to a Internal pull-down resistor(120k
@TYP).
Table 29. VCR Slow Blanking monitor
FVCR: VCR Fast blanking input level monitor
This bit is enabled when TVFB bit = “1”.
Input
SDC bit
VCRFB pin input level
0
<0.4V
0
1 V<
0
(Reserved)
0
(Reserved)
1
< 0.4V
1
1.4 to 2.4V
1
(Reserved)
1
3.5V<
Table 30. VCR Fast Blanking monitor (Typical threshold is 0.7V)
Output
SVCR1 bit
0
0
1
1
0
0
1
1
SVCR0 bit
0
1
0
1
0
1
0
1
Output
FVCR1 bit
0
0
0
0
0
0
1
1
FVCR0 bit
0
1
0
0
0
1
0
1
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