[AK4706]
(04H: D7-D6)
VRF1-0
bit
Source of
RFV pin
Mode
ENCV pin.
(Encoder CVBS)
ENCG pin.
(Encoder CVBS)
(Note 24)
Encoder CVBS1
Encoder CVBS2
00
01
VCRVIN pin.
(VCR CVBS)
(Hi-Z)
VCR (default)
Shutdown
10
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)
#15 pin
75
VCRC
pin
VCRRC
pin
VCR SCART
0.1u
(AK4706)
Figure 8. Red/Chroma Bi-directional Control
MS0507-E-01
2010/09
- 30 -
AKM [ ASAHI KASEI MICROSYSTEMS ]
