参数资料
型号: AS3658F-BCTP
厂商: ams
文件页数: 109/158页
文件大小: 0K
描述: IC PMU POWER/AUDIO 124-CTBGA
标准包装: 2,500
应用: 便携式设备
电流 - 电源: 7mA
电源电压: 3 V ~ 5.5 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 124-TFBGA
供应商设备封装: 124-CTBGA(8x8)
包装: 带卷 (TR)
AS3658
Data Sheet Confidential
- Detailed Description- Audio Functions
Table 112. MIC_L Register
MIC_L
Addr:88
Left Microphone Input Register
Configures the gain from microphone amplifier output
Bit
Bit Name
Default
Access
Description
7
msup_off
0
R/W
0
1
microphone supply on if mic_on=1
microphone supply off
9.9
Audio Output Mixer
9.9.1 General
The mixer stage sums up the audio signals of the following stages
Microphone Input
Line Input
Digital Audio Input (DAC)
The mixing ratios have to be with the volume registers of the corresponding input stages. Please be sure that the input
signals of the mixer stage are not higher than 1Vp. If summing up several signals, each individual signal has of course
to be accordingly lower. This shall insure that the output signal is also not higher than 1Vp to get a proper signal for the
output amplifier.
This stage features an automatic gain control (AGC), which automatically avoids clipping.
9.9.2 Register Description
Table 113. AudioSet_3 Register
Audio_set3 register
Addr:76
Configures the mixer inputs and AGC
Bit
Bit Name
Default
Access
Description
Preset of PLL bias for the following sampling
frequencies
0
pll_mode
0
R/W
0
16-48kS
1
8-12kS
Controls the pulldown of the HP1 if HP2is enabled and
HP2, if HP1 is enabled
1
hp_pulld_en
0
R/W
0
Pulldown disabled if hp_on=1
1
Pulldown of the not used HP1/2 output
enabled, if hp_on=1
Switches on the voice recognition
2
voxm_on
0
R/W
0
OFF
1
ON
Switches on the microphone amplifier
3
mic_on
0
R/W
0
OFF
1
ON
www.austriamicrosystems.com
Revision 1v13
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