參數(shù)資料
型號: AK4640
廠商: Asahi Kasei Microsystems Co.,Ltd
元件分類: Codec
英文描述: 16BIT CODEC WITH MIC /HP/SPK-AMPl
中文描述: 16位編解碼器麥克風(fēng)/惠普/胰腎聯(lián)合移植,AMPl
文件頁數(shù): 65/76頁
文件大小: 634K
代理商: AK4640
ASAHI KASEI
[AK4640]
MS0273-E-00
2004/03
- 65 -
2. When X'tal is used in PLL mode. (Master mode)
MCKPD bit
(Addr:01H, D7)
BICK, LRCK
(Master Mode)
PS1-0 bits
(Addr:04H, D5-4)
PMXTL bit
(Addr:01H, D6)
PMPLL bit
(Addr:01H, D5)
MCKO bit
(Addr:04H, D3)
MCKO pin
XX
00
40msec(max)
Output
Output
(1)
20ms(typ)(2)
(3)
(4)
E xam ple :
A udio I/F Fo rm at : I
2
S
B IC K freq ue ncy at M a ste r M o de : 64fs
Inp ut M aster C lo c k S e lect at P LL M o de : 1 1.2 896M H z
O utp ut M as ter C lo ck F re q ue ncy : 6 4fs
(1) A ddr:01H, D ata:40H
(2) A ddr:01H, D ata:60H
(3) A ddr:04H, D ata 6A H
(4) M CK O , BICK and LRC K output starts
Figure 46. Clock Set Up Sequence(2)
<Example>
(1) Release the pull-down of the XTI pin : MCKPD bit = “1”
“0” and and power-up the X’tal oscillator: PMXTL
bit = “0”
“1”
(2) Power-up PLL : PMPLL bit = “0”
“1”
The PLL should be powered-up after the X’tal oscillator becomes stable. If X'tal and PLL are powered-up at
the same time, the PLL does not start. It takes X’tal oscillator 20ms(typ) to be stable after PMXTL bit= “1”.
This time depends on X’tal. PLL needs 40ms lock time the PMPLL bit = “0”
“1”.
(3) Enable MCKO output : MCKO bit = “0”
“1” and set up MCKO output frequency (PS1-0 bits)
(4) MCKO, BICK and LRCK are output after PLL lock time.
相關(guān)PDF資料
PDF描述
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
AK4645EZ Stereo CODEC with MIC/HP-AMP
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AK4640_05 制造商:AKM 制造商全稱:AKM 功能描述:16-Bit ツヒ CODEC with MIC/HP/SPK-AMP
AK4640VG 制造商:AKM 制造商全稱:AKM 功能描述:16BIT CODEC WITH MIC /HP/SPK-AMPl
AK4640VN 制造商:AKM 制造商全稱:AKM 功能描述:16BIT CODEC WITH MIC /HP/SPK-AMPl
AK4641 制造商:AKM 制造商全稱:AKM 功能描述:16 BIT CODEC WITH BLUETOOTH INTERFACE
AK4641EN 制造商:AKM 制造商全稱:AKM 功能描述:16bit stereo CODEC with built-in Microphone-amplifier and 16bit Mono CODEC for Bluetooth Interface.