參數(shù)資料
型號(hào)： AK4648EC
廠商： Asahi Kasei Microsystems Co.,Ltd
元件分類： Codec
英文描述： Stereo CODEC with MIC/HP/SPK-AMP
中文描述： 立體聲編解碼器麥克風(fēng)/惠普/胰腎聯(lián)合移植腺苷
文件頁數(shù)： 115/119頁
文件大?。?/td> 1272K
代理商： AK4648EC
[AK4648]
MS0625-E-01
2007/06
- 115 -
■
Stop of Clock
Master clock can be stopped when ADC and DAC are not used.
1. PLL Master Mode
External MCKI
PMPLL bit
(Addr:01H, D0)
MCKO bit
(Addr:01H, D1)
Input
(3)
(1)
(2)
"1" or "0"
Example:
Audio I/F Format: MSB justified (ADC & DAC)
BICK frequency at Master Mode: 64fs
Input Master Clock Select at PLL Mode: 11.2896MHz
Sampling Frequency: 44.1kHz
(3) Stop an external MCKI
(1) (2) Addr:01H, Data:08H
Figure 81. Clock Stopping Sequence (1)
<Example>
(1)
Power down PLL: PMPLL bit = “1”
→
“0”
(2)
Stop MCKO clock: MCKO bit = “1”
→
“0”
(3)
Stop an external master clock.
2. PLL Slave Mode (LRCK or BICK pin)
External BICK
PMPLL bit
(Addr:01H, D0)
Input
(1)
(2)
External LRCK
Input
(2)
Example
Audio I/F Format: MSB justified (ADC & DAC)
PLL Reference clock: BICK
BICK frequency: 64fs
Sampling Frequency: 44.1kHz
(1) Addr:01H, Data:00H
(2) Stop the external clocks
Figure 82. Clock Stopping Sequence (2)
<Example>
(1)
Power down PLL: PMPLL bit = “1”
→
“0”
(2)
Stop the external BICK and LRCK clocks
3. PLL Slave (MCKI pin)
External MCKI
PMPLL bit
(Addr:01H, D0)
Input
(1)
(2)
MCKO bit
(Addr:01H, D1)
(1)
Example
Audio I/F Format: MSB justified (ADC & DAC)
PLL Reference clock: MCKI
BICK frequency: 64fs
Sampling Frequency: 44.1kHz
(1) Addr:01H, Data:00H
(2) Stop the external clocks
Figure 83. Clock Stopping Sequence (3)
<Example>
(1)
Power down PLL: PMPLL bit = “1”
→
“0”
Stop MCKO output: MCKO bit = “1”
→
“0”
(2)
Stop the external master clock.
相關(guān)PDF資料
PDF描述
AK4650 16Bit ツヒ CODEC with MIC/HP/SPK-AMP & TSC
AK4650VG 16Bit ツヒ CODEC with MIC/HP/SPK-AMP & TSC
AK4651 16Bit ツヒ CODEC with MIC/HP/SPK-AMP
AK4651VG 16Bit ツヒ CODEC with MIC/HP/SPK-AMP
AK4665A 20-Bit Stereo CODEC with MIC/HP-AMP
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AK4649 制造商:AKM 制造商全稱:AKM 功能描述:24bit Stereo CODEC with MIC/SPK-AMP
AK4649ECB 制造商:AKM 制造商全稱:AKM 功能描述:24bit Stereo CODEC with MIC/SPK-AMP
AK4649VN 功能描述:IC CODEC AUDIO 32QFN 制造商:akm semiconductor inc. 系列:- 包裝:帶卷（TR） 零件狀態(tài):初步 類型:音頻 數(shù)據(jù)接口:I2C 分辨率（位）:24 b ADC/DAC 數(shù):1 / 1 三角積分:- 信噪比，ADC/DAC（db）（典型值）:- 動(dòng)態(tài)范圍，ADC/DAC（db）（典型值）:- 電壓 - 電源，模擬:3 V ~ 3.6 V 電壓 - 電源，數(shù)字:3 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:32-WFQFN 裸露焊盤 供應(yīng)商器件封裝:32-QFN（5x5） 標(biāo)準(zhǔn)包裝:1,000
AK4650 制造商:AKM 制造商全稱:AKM 功能描述:16Bit ツヒ CODEC with MIC/HP/SPK-AMP & TSC
AK4650VG 制造商:AKM 制造商全稱:AKM 功能描述:16Bit ツヒ CODEC with MIC/HP/SPK-AMP & TSC
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