參數(shù)資料
型號(hào)： 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)： 75/82頁
文件大小： 688K
代理商： AK4633
ASAHI KASEI
[AK4633]
MS0447-E-03
2006/04
- 75 -
<Example>
This sequence is an example of ALC2 setting at fs=16kHz. If the parameter of the ALC2 is changed, please refer to
“
Table 33. Example of the ALC Setting (Playback)
”.
At first, clocks should be supplied according to
“
Clock Set Up
”
sequence.
(1) Set up a sampling frequency (FS3-0 bits). When the AK4633 is PLL mode, DAC and Speaker-Amp should be
powered-up in consideration of PLL lock time after a sampling frequency is changed.
(2) Set up the path of
“
DAC
SPK-Amp
”:
DACS bit:
“
0
”
→
“
1
”
(3) Set up the ALC2 Timer (Addr: 06H)
(4) Set up the REF value of ALC2 (Addr: 08H)
(5) Set up OVOL value at start ALC2 (Addr: 10H), RGAIN1 and LMTH1
(6) Set up LMTH0, RGAIN0, LMAT1-0, ZELM and ALC2 bits (Addr: 07H)
(7) Set up path of programmable filter and SPK-Amp gain:
PFDAC bit =
“
1
”
, ADCPF bit =
“
0
”
, SPKG1-0 bits =
“
XX
”
(8) Set up coefficient of programmable filter (HPF/EQ): Addr: 10H
～
1FH
(9) Set up ON/OFF of programmable filter (HPF/EQ)
HPF bit is recommended to
“
1
”
.
(10) Power Up DAC, SPK and programmable filter:
PMDAC bit = PMSPK bit = PMPFIL bit =
“
0
”
→
“
1
”
(11) Exit Speaker power-save-mode: SPPSN bit =
“
0
”
→
“
1
”
SPPSN bit should be set to
“
1
”
at more than 1ms after PMSPK bit is set to
“
1
”
.
(12) Enter Speaker power-save-mode: SPPSN bit =
“
1
”
→
“
0
”
(13) Disable the path of
“
DAC
SPK-Amp
”:
DACS bit =
“
1
”
→
“
0
”
(14) Power Down DAC, Speaker and programmable filter: PMDAC bit = PMSPK bit = PMPFIL bit =
“
1
”
→
“
0
”
相關(guān)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(guān)代理商/技術(shù)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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