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系列開關(guān)
文件頁(yè)數(shù)： 30/53頁(yè)
文件大?。?/td> 597K
代理商： AK4706
ASAHI KASEI
[AK4706]
MS0507-E-00
2006/05
- 30 -
(04H: D7-D6)
Mode
VRF1-0
bit
Source of
RFV pin
ENCV pin.
(Encoder CVBS)
ENCG pin.
(Encoder CVBS)
(Note 24)
VCRVIN pin.
(VCR CVBS)
(Hi-Z)
Encoder CVBS1
00
Encoder CVBS2
01
VCR (default)
10
Shutdown
11
Table 16. RF video output
Note 23. When input the video signal via ENCRC pin or VCRRC pin, set CLAMP1-0 bits respectively.
Note 24. When VTV2-0 bit =“001”, TVG bit =“1” and VRF1-0 bit =“01”, RFV pin output is same
as TVG pin output (Encoder G).
Video Output Control (05H: D6-D0)
Each video outputs can be set to Hi-Z individually via control registers. These setting are ignored when the AUTO bit =
“1”. When the CIO bit = “1”, the VCRC pin outputs 0V even if the VCRC bit = “0”. When the CIO bit = “0”, the VCRC
pin follows the setting of VCRC bit. Please refer the “Red/Chroma Bi-directional Control for VCR SCART”.
TVV: TVVOUT output control
TVR: TVRCOUT output control
TVG: TVGOUT output control
TVB: TVBOUT output control
VCRV: VCRVOUT output control
VCRC: VCRC output control
TVFB: TVFB output control
0: Hi-Z (default)
1: Active.
Red/Chroma Bi-directional Control for VCR SCART (05H: D7, D5)
The AK4706 supports the bi-directional Red/Chroma signal on the VCR SCART.
(CIO bit &
VCRC bit)
(AK4706)
VCRRC
pin
VCRC
pin
VCR SCART
75
0.1u
#15 pin
Figure 8. Red/Chroma Bi-directional Control
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