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參數(shù)資料
| 型號(hào)： | AK4561VQ |
| 廠商： | Asahi Kasei Microsystems Co.,Ltd |
| 元件分類： | Codec |
| 英文描述： | 16bit CODEC with built-in ALC and MIC/HP-Amp |
| 中文描述： | 16位編解碼器在ALC和內(nèi)置麥克風(fēng)/惠普放大器 |
| 文件頁數(shù)： | 42/48頁 |
| 文件大?。?/td> | 332K |
| 代理商： | AK4561VQ |
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ASAHI KASEI
AKM CONFIDENTIAL
[AK4561]
Rev. 0.9
2000/09
- 42 -
3.
Attention of IPGA writing operation
During the ALC operation, internal control register indicates the different value to the current IPGA value. And if the
writing value before and after the ALC operation is same, the IPGA value is not updated.
If the IPGA is the same value before and after the ALC operation, it needs to write the dummy command during the ALC
operation.
In Figure 30, the last IPGA value is reflected by doing the following sequence.
WR(IPGA=60H)
→
WR(ALC= “1”)
→
WR(ALC= “0”)
→
WR(IPGA=60H)
Figure 30
. IPGA value during
ALC operation 1
(1) WR(ALC = “1”): Enter ALC mode from Manual mode
(2) WR(ALC = “0”): Finish ALC mode and enter Manual mode
The IPGA becomes a value after finishing ALC operation. (In Figure 30, the IPGA value assumes
40H.)
(3) WR(IPGA=60H): If the written value to control register is the same as the current value, the written value is ignored,
therefore the IPGA value keeps 40H (the value after finishing the ALC operation).
Control Register
Internal IPGAValue
Internal State
ALC operation
Manual Mode
Manual Mode
60H
60H--> 40H
40H
60H
(1)
(2)
(3)
相關(guān)PDF資料 |
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|---|---|
| AK4562 | LOW POWER 20BIT CODEC WITH PGA |
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| AK4563A | Low Power 16bit 4ch ADC & 2ch DAC with ALC |
| AK4563AVF | Low Power 16bit 4ch ADC & 2ch DAC with ALC |
| AK4564 | 16BIT CODEC WITH BUILT-IN ALC AND MIC/HP/SPK-AMP |
相關(guān)代理商/技術(shù)參數(shù) |
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| AK4562 | 制造商:AKM 制造商全稱:AKM 功能描述:EVALUATION BOARD REV.A FOR AK4562 |
| AK4562VN | 制造商:AKM 制造商全稱:AKM 功能描述:LOW POWER 20BIT CODEC WITH PGA |
| AK4563A | 制造商:AKM 制造商全稱:AKM 功能描述:Low Power 16bit 4ch ADC & 2ch DAC with ALC |
| AK4563AVF | 制造商:AKM 制造商全稱:AKM 功能描述:Low Power 16bit 4ch ADC & 2ch DAC with ALC |
| AK4564 | 制造商:AKM 制造商全稱:AKM 功能描述:16BIT CODEC WITH BUILT-IN ALC AND MIC/HP/SPK-AMP |
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