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參數(shù)資料
| 型號(hào)： | AK4632 |
| 廠商： | Asahi Kasei Microsystems Co.,Ltd |
| 元件分類： | Codec |
| 英文描述： | 16-Bit ツヒ Mono CODEC with ALC & MIC/SPK/Video-AMP |
| 中文描述： | 16位ツヒALC的單聲道編解碼器 |
| 文件頁數(shù)： | 25/70頁 |
| 文件大?。?/td> | 639K |
| 代理商： | AK4632 |
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ASAHI KASEI
[AK4632]
MS0396-E-00
2005/06
- 25 -
PLL Slave Mode (PMPLL bit = “1”, M/S bit = “0”)
A reference clock of PLL is selected among the input clocks to MCKI, BICK or FCK pin. The required clock to the
AK4632 is generated by an internal PLL circuit. Input frequency is selected by PLL3-0 bits. When BICK input frequency
is 16fs, the audio interface format supports only Mode 0 (DSP Mode).
a) PLL reference clock: BICK or FCK pin
In the case of using BICK as PLL reference clock, the sampling frequency corresponds to 7.35kHz to 48kHz by
changing FS3-0 bits. In the case of using FCK, the sampling frequency corresponds to 7.35kHz to 26kHz. (SeeTable
6)
AK4632
DSP or
μ
P
MCKI
BICK
FCK
SDTO
SDTI
BCLK
FCK
SDTI
SDTO
MCKO
1fs
16fs, 32fs, 64fs
Figure 20. PLL Slave Mode 1 (PLL Reference Clock: FCK or BICK pin)
b) PLL reference clock: MCKI pin
BICK and FCK inputs should be synchronized with MCKO output. The phase between MCKO and FCK dose not
matter. Sampling frequency can be selected by FS3-0 bits. (See Table 5)
AK4632
DSP or
μ
P
MCKO
BICK
FCK
SDTO
SDTI
BCLK
FCK
SDTI
SDTO
MCKI
1fs
16fs, 32fs, 64fs
256fs
11.2896MHz, 12MHz, 12.288MHz
13.5MHz, 24MHz, 27MHz
MCLK
Figure 21. PLL Slave Mode 2 (PLL Reference Clock: MCKI pin)
The external clocks (MCKI, BICK and FCK) should always be present whenever the ADC or DAC is in operation
(PMADC bit =
“
1
”
or PMDAC bit =
“
1
”
). If these clocks are not provided, the AK4632 may draw excess current and it is
not possible to operate properly because utilizes dynamic refreshed logic internally. If the external clocks are not present,
the ADC and DAC should be in the power-down mode (PMADC bit =PMDAC bit =
“
0
”
).
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AK4632VN | 16-Bit ツヒ Mono CODEC with ALC & MIC/SPK/Video-AMP |
| AK4633VN | 16bit mono CODEC with MIC/SPK amplifier. |
| AK4633 | 16-Bit Mono CODEC with ALC & MIC/SPK-AMP |
| AK4640 | 16BIT CODEC WITH MIC /HP/SPK-AMPl |
| AK4640VG | 16BIT CODEC WITH MIC /HP/SPK-AMPl |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AK4632VN | 制造商:AKM 制造商全稱:AKM 功能描述:16-Bit ツヒ Mono CODEC with ALC & MIC/SPK/Video-AMP |
| AK4633 | 制造商:AKM 制造商全稱:AKM 功能描述:16-Bit Mono CODEC with ALC & MIC/SPK-AMP |
| AK4633ENP-L | 制造商:Asahi Kasei Microsystems Co Ltd 功能描述:LOW COST MONO CODEC WITH SPK A |
| AK4633VN | 制造商:AKM 制造商全稱:AKM 功能描述:16bit mono CODEC with MIC/SPK amplifier. |
| AK4633VNP-L | 制造商:Asahi Kasei Microsystems Co Ltd 功能描述:LOW COST MONO CODEC WITH SPK A |
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