AK4703 Datasheet, PDF (15/38 Pages) Asahi Kasei Microsystems – AV SCART switch

ASAHI KASEI
AKM CONFIDENTIAL
[AK4703]
2. Audio Block
„ Switch Control
The AK4703 has switch matrixes designed primarily for SCART routing. Those are controlled via the control register as
shown in, Table 3, Table 4 and Table (Please refer to the Block Diagram).
(01H: D1-D0)
TV1 TV0
Source of TVOUTL/R
0
0
AMP
0
1
VCRIN (Default)
1
0
Mute
1
1
LIN/RIN
Table 3. TVOUT Switch Configuration
(01H: D2-D0)
MSEL TV1 TV0 Source of MONOOUT
0
0
0
AMP (L+R)/2
0
0
1
AMP (L+R)/2
0
1
0
AMP (L+R)/2
0
1
1
(Reserved)
1
0
0
AMP (L+R)/2
1
0
1
VCRIN (L+R)/2
1
1
0
Mute
1
1
1
(LIN+RIN)/2
Table 4. MONOOUT Switch Configuration
(01H: D5-D4)
VCR1 VCR0
Source of VCROUTL/R
0
0
AMP
0
1
TVIN (Default)
1
0
Mute
1
1
(Reserved)
Table 5. VCROUT Switch Configuration
Rev. 0.1
- 15 -
2004/03