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參數(shù)資料
| 型號(hào)： | AK4545 |
| 廠商： | Asahi Kasei Microsystems Co.,Ltd |
| 元件分類： | Codec |
| 英文描述： | AC97 AUDIO CODEC WITH SRC AND DIT |
| 中文描述： | AC97聲音解碼器與SRC和DIT |
| 文件頁(yè)數(shù)： | 21/33頁(yè) |
| 文件大?。?/td> | 363K |
| 代理商： | AK4545 |
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[ASAHI KASEI] [AK4545]
MS0058-E-00
2000/11
- 21 -
n
Play Master Volume Registers (Index 02h,06h) and LINVL(True Line Level Out) Volume Register(Index 04h)
The following table shows the relationship between bits and the attenuation value with step size of 1.5dB. The
AK4545 has a range of 0dB to 46.5dB. The AK4545 does not support the optional MX5 bit.
The AK4545
detect
s
when MX5 is set and set all 5 LSBs to 1s.
Example: When t
he driver
writes a “01xxxxx”
the AK4545
interpret that as “0011111”. When this register is read, the return value is “0011111”.
Mute
0
0
0
0
MX5
0
0
0
0
MX4
0
0
0
0
MX3
0
0
0
0
MX2
0
0
0
0
MX1
0
0
1
1
MX0
0
1
0
1
Att.
0dB
-1.5dB
-3.0dB
-4.5dB
-------------------------------------------------------------------------
0
1
1
0
1
1
-------------------------------------------------------------------------
1
X
X
-------------------------------------------------------------------------
X
X
X
0
0
1
1
1
1
0
1
-45.0dB
-46.5dB
0
X
X
X
-46.5dB
1
X
X
X
Mute
n
PC Beep Register (Index 0Ah)
The following table shows the relationship between bits and the attenuation value. The attenuation step is 3dB with
a range of 0 to 45dB. PC_BEEP of the AK4545 is 0dB at default state.
The PC Beep is routed to L & R Line outputs directly when AK4545 is in a RESET State(Reset# is “L”) or when the mixer is
powerdown with Vref on(PR2=”1” and PR3=”0”). The PC BEEP isn’t routed to True Line Level Out under these states. This is so
that Power on Self Test(POST) codes can be heard by the user in case of a hardware problem with the PC. After Reset# goes “H”,
direct PC beep pass through becomes OFF.
Mute
0
0
0
--------------------------------------------------------------
0
1
1
1
X
X
PV3
0
0
0
PV2
0
0
0
PV1
0
0
1
PV0
0
1
0
Att.
0dB
-3.0dB
-6.0dB
1
X
1
X
-45.0dB
Mute
n
Analog Mixer Input Gain Registers (Index 0Ch-18h)
The following table shows the relationship between bits and the gain/attenuation value. Attenuation step is 1.5dB
with a range of +12dB to 34.5dB.
Mute
0
0
-----------------------------------------------------------------------
0
0
1
0
0
0
1
0
-----------------------------------------------------------------------
0
1
1
1
0
1
1
1
1
X
X
X
Gx4
0
0
Gx3
0
0
Gx2
0
0
Gx1
0
0
Gx0
0
1
Att.
+12dB
+10.5dB
0
0
0
1
0dB
-1.5dB
1
1
X
0
1
X
-33.0dB
-34.5dB
Mute
n
Record Select Control Register (Index 1Ah)
SR2
0
0
0
0
1
1
1
1
SR1
0
0
1
1
0
0
1
1
SR0
0
1
0
1
0
1
0
1
Att.
Mic
CD In (R)
Video In (R)
Aux In (R)
Line In (R)
Stereo Mix (R)
Mono Mix
Phone
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AK4545VQ | AC97 AUDIO CODEC WITH SRC AND DIT |
| AK4551 | LOW POWER & SMALL PACKAGE 20BIT CODEC |
| AK4551VT | LOW POWER & SMALL PACKAGE 20BIT CODEC |
| AK4554 | Low Power & Small Package 16bit ツヒ CODEC |
| AK4554VT | Low Power & Small Package 16bit ツヒ CODEC |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AK4545VQ | 制造商:AKM 制造商全稱:AKM 功能描述:AC97 AUDIO CODEC WITH SRC AND DIT |
| AK4550 | 制造商:AKM 制造商全稱:AKM 功能描述:EVALUATION BOARD REV.C FOR AK4550 |
| AK4550VT | 制造商:AKM 制造商全稱:AKM 功能描述:LOW POWER & SMALL PACKAGE 16BIT CODEC |
| AK4550VT-E2 | 制造商:Asahi Kasei Microsystems Co Ltd 功能描述: |
| AK4550VTP-E2 | 制造商:Asahi Kasei Microsystems Co Ltd 功能描述:16BIT 3V |
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