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參數(shù)資料
| 型號： | AK4633 |
| 廠商： | Asahi Kasei Microsystems Co.,Ltd |
| 元件分類： | Codec |
| 英文描述： | 16-Bit Mono CODEC with ALC & MIC/SPK-AMP |
| 中文描述： | 16位單聲道編解碼器ALC的 |
| 文件頁數(shù)： | 30/82頁 |
| 文件大?。?/td> | 688K |
| 代理商： | AK4633 |
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ASAHI KASEI
[AK4633]
MS0447-E-03
2006/04
- 30 -
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
AK4633 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: 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(Table 5).
AK4633
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 19. PLL Slave Mode1 (PLL Reference Clock: MCKI pin)
b) PLL reference clock: BICK or FCK pin
In case of using BICK or FCK as PLL reference clock, the sampling frequency corresponds to 7.35kHz to 48kHz by
FS3-0 bits(Table 6).
AK4633
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)
The external clocks (MCKI, BICK and FCK) should always be present whenever the ADC or DAC or Programmable
Filter are in operation (PMADC bit =
“
1
”
or PMDAC bit =
“
1
” or
PMPFIL bit =
“
1
”
). If these clocks are not provided, the
AK4633 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, DAC and Programmable Filter should be in the power-down
mode (PMADC bit =PMDAC bit = PMPFIL bit =
“
0
”
).
相關PDF資料 |
PDF描述 |
|---|---|
| AK4640 | 16BIT CODEC WITH MIC /HP/SPK-AMPl |
| AK4640VG | 16BIT CODEC WITH MIC /HP/SPK-AMPl |
| AK4640VN | 16BIT CODEC WITH MIC /HP/SPK-AMPl |
| AK4642EN | Stereo CODEC with MIC/HP/SPK-AMP |
| AK4643EN | Stereo CODEC with MIC/HP/RCV/SPK-AMP |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| 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 |
| AK4634 | 制造商:AKM 制造商全稱:AKM 功能描述:16-Bit Mono CODEC with ALC & MIC/SPK-AMP |
| AK4635 | 制造商:AKM 制造商全稱:AKM 功能描述:16-Bit Mono CODEC with ALC & MIC/SPK/Video-AMP |
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