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參數(shù)資料
| 型號： | AK4646EN |
| 廠商： | ASAHI KASEI POWER DEVICES CORP |
| 元件分類： | 消費家電 |
| 英文描述： | Stereo CODEC with MIC/SPK-AMP |
| 中文描述： | SPECIALTY CONSUMER CIRCUIT, PQCC32 |
| 封裝： | 5 X 5 MM, 0.50 MM PITCH, LEAD FREE, PLASTIC, QFN-32 |
| 文件頁數(shù)： | 43/79頁 |
| 文件大?。?/td> | 789K |
| 代理商： | AK4646EN |
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[AK4646]
MS0557-E-02
2007/05
- 43 -
■
Input Digital Volume (Manual Mode)
The input digital volume becomes a manual mode at ALC1 bit = “0” when either Lch and Rch of ADC is powered-up
(PMADL bit = “1” or PMADR bit = “1”) and DAFIL bit is “0”. This mode is used in the case shown below.
1.
After exiting reset state, set-up the registers for the ALC operation (ZTM1-0, LMTH and etc)
2.
When the registers for the ALC operation (Limiter period, Recovery period and etc) are changed.
For example; when the change of the sampling frequency.
3.
When IVOL is used as a manual volume.
IVL7-0 and IVR7-0 bits set the gain of the volume control (Table 34). The IVOL value is changed at zero crossing or
timeout. The zero crossing timeout period is set by ZTM1-0 bits. If IVL7-0 or IVR7-0 bits are written during
PMADL=PMADR bits = “0”, IVOL operation starts with the written values at the end of the ADC initialization cycle
after PMADL or PMADR bit is changed to “1”.
If IVL7-0 or IVR7-0 bits are written during PMADL=PMADR bits = “0”, IVOL operation starts with the written values
at the end of the ADC initialization cycle after PMADL or PMADR bit is changed to “1”.
IVL7-0
IVR7-0
F1H
+36.0
F0H
+35.625
EFH
+35.25
:
:
E2H
+30.375
E1H
+30.0
E0H
+29.625
:
:
03H
53.25
02H
53.625
01H
54
00H
MUTE
Table 34. Input Digital Volume Setting
(default)
GAIN (dB)
Step
0.375dB
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AK4647 | Stereo CODEC with MIC/HP-AMP |
| AK4647VN | Stereo CODEC with MIC/HP-AMP |
| AK4648 | Stereo CODEC with MIC/HP/SPK-AMP |
| AK4648EC | Stereo CODEC with MIC/HP/SPK-AMP |
| AK4650 | 16Bit ツヒ CODEC with MIC/HP/SPK-AMP & TSC |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AK4646ENP-L | 制造商:Asahi Kasei Microsystems Co Ltd 功能描述:STEREO CODEC+SPK |
| AK4646EZ | 制造商:AKM 制造商全稱:AKM 功能描述:Stereo CODEC with MIC/SPK-AMP |
| AK4647 | 制造商:AKM 制造商全稱:AKM 功能描述:Stereo CODEC with MIC/HP-AMP |
| AK4647VN | 制造商:AKM 制造商全稱:AKM 功能描述:Stereo CODEC with MIC/HP-AMP |
| AK4647VQ | 制造商:AKM 制造商全稱:AKM 功能描述:Stereo CODEC with MIC/HP-AMP |
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