參數(shù)資料
型號： AK4702
廠商： Asahi Kasei Microsystems Co.,Ltd
英文描述： 2CH DAC WITH AV SCART SWITCH
中文描述： 2聲道DAC，具有影音SCART開關(guān)
文件頁數(shù)： 18/38頁
文件大?。?/td> 308K
代理商： AK4702
ASAHI KASEI
[AK4702]
MS0187-E-00
2002/11
- 18 -
n
Volume/Switch Control
The AK4702 has analog volume controls and switch matrixes designed primarily for SCART routing. Those are controlled
via the control register as shown in, Table 4, Table 5, Table 7 and Table 8. (Please refer to the block diagram in figure 1.)
DVOL1
DVOL0
Gain
Output Level
(at volume#1=0dB)
2Vrms
1Vrms
2.65Vrms
(Reserved)
0
0
1
1
0
1
0
1
0dB
-6dB
2.44dB
(Reserved)
Table 4. Volume #0 (Digital Volume for DAC)
L5
1
1
1
0
…
0
0
L4
0
0
0
1
…
0
0
L3
0
0
0
1
…
0
0
L2
0
0
0
1
…
0
0
L1
1
0
0
1
…
0
0
L0
0
1
0
1
…
1
0
Gain
+6dB
+4dB
+2dB
0dB (default)
…
-60dB
Mute
Note: Do not exceed 3Vrms as analog output.
Table 5. Volume #1 (Analog Volume)
TV1
0
0
1
1
TV0
0
1
0
1
Source of TVOUTL/R
DAC
VCRIN (default)
Mute
(Reserved)
Table 6. TVOUT Switch Configuration
VOL
0
0
0
0
1
1
1
1
TV1
0
0
1
1
0
0
1
1
TV0
0
1
0
1
0
1
0
1
Source of MONOOUT
DAC (L+R)/2
DAC (L+R)/2
DAC (L+R)/2
(Reserved)
DAC (L+R)/2
VCRIN (L+R)/2
Mute
(Reserved)
Bypass the
volume #1
Through the
volume #1
Table 7. MONOOUT Switch Configuration
VCR1
VCR0
0
0
0
1
1
0
1
1
Source of VCROUTL/R
DAC
TVIN (default)
Mute
(Reserved)
Table 8. VCROUT Switch Configuration
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