參數(shù)資料
型號： AK4708
廠商： Asahi Kasei Microsystems Co.,Ltd
英文描述： AV SCART Switch with Two RGB Outputs
中文描述： 影音SCART開關與兩個RGB輸出
文件頁數(shù)： 20/46頁
文件大?。?/td> 504K
代理商： AK4708
[AK4708]
MS0618-E-00
2007/04
- 20 -
Figure 7. Volume #0(Volume Gain=0dB:default), Single-ended Input
(0DH: D5-D3)
VOL
1
0
1
1
1
1
1
0
1
0
1
1
0
0
0
1
1
0
1
0
0
0
1
0
0
0
Note: Volume #1=0dB
Table 6. Volume #0, Single-ended Input
■
Volume Control #1 (Main Volume)
The AK4708 has main volume control (Volume #1) as shown in Table 7.
(02H: D5-D0)
L5
L4
L3
1
0
0
1
0
0
1
0
0
0
1
1
…
…
…
0
0
0
0
0
0
Note: The output must not exceed 3Vrms.
VOL2
VOL
Volume #0 Gain
Output Level (Typ)
+12dB
+9dB
+6dB
+3dB
0dB
-3dB
-6dB
Mute
2Vrms (with 0.5Vrms input)
-
2Vrms (with 1Vrms input)
-
1Vrms (with 1Vrms input)
-
0.5Vrms (with 1Vrms input)
-
(default)
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
…
-60dB
Mute
(default)
Table 7. Volume #1
When the MOD bit = “1”(default), changing levels don’t have pop noise. MDT1-0 bits select the transition time (Table 8).
When the new gain value 1EH(-2dB) is written to gain resistor while the actual (stable) gain is 1FH(0dB), the gain
changes to 1EH(-2dB) within the transition time selected by MDT1-0 bits. The AK4708 compares the actual gain to the
value of gain register after finishing the transition time, and re-changes the actual gain to new resister value within the
transition time if the register value is different from the actual gain when compared. When the MOD bit = “0” then there
is no transition time and the gain changes immediately. This change may cause a click noise.
AINL/R+
0.47
μ
AINL/R-
TVOUTL/R
(VCROUTL/R)
Volume Gain 0dB
Volume #0
1Vrms
1Vrms
0.47
μ
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