參數(shù)資料
型號： 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)： 74/119頁
文件大?。?/td> 1272K
代理商： AK4648EC
[AK4648]
MS0625-E-01
2007/06
- 74 -
<Connection with mono headphone>
The AK4648 can be connected with mono headphone by using Headphone-Amp power management bit and HPZ bit. As
right channel of mono headphone is usually connected to GND, the right channel of Headphone-Amp must be Hi-Z. Here
are the power up sequence in Single-ended Mode and Pseudo Cap-less Mode.
1.
Single-ended Mode
(1)
Power-down Headphone-amp: PMHPL=PMHPR=HPZ bits = “0”
HPL/HPR pins output VSS2.
(2)
Power-up left channel of Headphone-amp: PMHPL = “1”
Left channel of Headphone-amp is powered-up and HPL pin outputs VSS2.
(3)
Change pull-down resistor of right channel of Headphone-amp: HPZ bit = “1”
HPR pin is pulled-down by 200k
Ω
(typ.) to VSS2.
(4)
Release mute of Headphone-amp: HPMTN bit: “0”
1
HPL pin outputs the signal and HPR pin is pulled-down by 200k
Ω
(typ.) to VSS2.
2.
Pseudo Cap-less Mode
(1)
Power-down of Headphone-amp: PMHPL=PMHPR=PMHPC=HPZ bits = “0”
HPL/HPR/HVCM pins output VSS2.
(2)
Power-up left channel and common buffer of Headphone-amp: PMHPL = PMHPC bits = “1”
Left channel and common buffer of Headphone-amp are powered-up and they output VSS2.
(3)
Change pull-down resistor of right channel of Headphone-amp: HPZ bit = “1”
HPR pin is pulled-down by 200k
Ω
(typ.) to VSS2.
(4)
Release mute of Headhone-amp: HPMTN bit: “0”
1
HPL pin outputs the signal. HPR pin is pulled-down by 200k
Ω
(typ.) to VSS2 and outputs HVCM voltage.
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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