AK4703 Datasheet, PDF (29/38 Pages) Asahi Kasei Microsystems – AV SCART switch

ASAHI KASEI
AKM CONFIDENTIAL
[AK4703]
Addr Register Name D7
05H Output Enable CIO
R/W
Default
0
D6
TVFB
0
D5
VCRC
0
D4
D3
VCRV TVB
R/W
0
0
D2
TVG
0
D1
TVR
0
TVV: TVVOUT output control
TVR: TVRCOUT output control
TVG: TVGOUT output control
TVB: TVBOUT output control
VCRV: VCRVOUT output control
VCRC: VCRC output control (Please refer the Table 9)
TVFB: TVFB output control
0: Hi-Z (Default)
1: Active.
When the CIO pin = “H”, the VCRC pin is connected to GND even if VCRC bit = “0”.
When the CIO pin = “L”, the VCRC pin follows the setting of VCRC bit.
CIO: VCRC pin I/O control
Please refer the Table 9.
D0
TVV
0
Addr Register Name D7
D6
D5
D4
D3
D2
D1
D0
06H Video volume
0
VCLP1 VCLP0
0
CLAMP1 CLAMP0 0
0
R/W
R/W
Default
0
0
0
0
0
1
0
0
CLAMP1: Encoder R/Chroma (ENCRC pin) input clamp control
0: DC restore clamp active (for RED signal. Default)
1: Biased (for Chroma signal.)
CLAMP0: VCR R/C (VCRC pin) input clamp control
0: DC restore clamp active (for RED signal)
1: Biased (for Chroma signal. Default.)
VCLP1-0: DC restore source control
00: ENCV pin (Default)
01: ENCY pin
10: VCRVIN pin
11: (Reserved)
When the AUTO bit = “1”, the source is fixed to VCRVIN pin.
Rev. 0.1
- 29 -
2004/03