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)： 78/119頁
文件大?。?/td> 1272K
代理商： AK4648EC
[AK4648]
MS0625-E-01
2007/06
- 78 -
<Speaker-Amp Control Sequence>
Lch Speaker-Amp is powered-up/down by PMSPL bit and Rch Speaker-Amp is powered-up/down by PMSPR bit.
Power-save mode of both Lch and Rch Speaker-Amps are controlled by SPPSN bit.
When PMSPL (PMSPR) bit is “0”, both SPLP (SPRP) and SPLN (SPRN) pin are in Hi-Z state. When PMSPL (PMSPR)
bit is “1” and SPPSN bit is “0”, the Speaker-Amp enters power-save mode. In this mode, SPLP (SPRP) pin is placed in
Hi-Z state and SPLN (SPRN) pin goes to HVDD/2 voltage. Power-save mode can reduce the pop noise at power-up and
power-down.
When The PDN pin is changed from “L” to “H” after power-up and PMSPL (PMSPR) bit is set to “1”, SPLP (SPRP) and
SPLN (SPRN) pins are in power-save mode. When changing the output mode of Speaker-Amp, PMSPL and PMSPR bits
should be set to “0”.
PMSPL bit
PMSPR bit
0
x
Power-down
0
Power-Save
1
1
Normal Operation
Table 68. Setting of Speaker-Amp Mode (x: Don’t care)
PMSPL bit
PMSPR bit
SPPSN bit
Mode
SPLP pin
SPRP pin
Hi-Z
Hi-Z
Normal Operation
SPLN pin
SPRN pin
Hi-Z
HVDD/2
Normal Operation
(default)
SPPSN bit
SPLP pin,
SPRP pin
SPLN pin,
SPRN pin
HVDD/2
HVDD/2
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Figure 57. Power-up/Power-down Timing for Speaker-Amp
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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