參數(shù)資料
型號(hào): AS3517
廠商: ams
文件頁(yè)數(shù): 59/94頁(yè)
文件大?。?/td> 0K
描述: IC CODEC AFE AUDIO STER 81-CTBGA
標(biāo)準(zhǔn)包裝: 250
類(lèi)型: 音頻編解碼器
應(yīng)用: 便攜式音頻,電話(huà)
安裝類(lèi)型: 表面貼裝
封裝/外殼: 81-TFBGA
供應(yīng)商設(shè)備封裝: 81-CTBGA(9x9)
包裝: 托盤(pán)
AS3517 V17
Data Sheet, Confidential
2003-2007, austriamicrosystems AG, 8141 Unterpremstaetten, Austria-Europe. All Rights Reserved.
www.austriamicrosystems.com
Table 53 MIC1_R Register
Name
Base
Default
MIC1_R
2-wire serial
00h
Right Microphone Input 1 Register
Offset: 06h
Configures the gain from microphone 1 amplifier output up to mixer input (Σ).
This register is reset when the block is disabled in AudioSet1 register (14h) or at a
DVDD-POR. The register cannot be written when the block is disabled.
Bit
Bit Name
Default
Access
Bit Description
7
MIC1_AGC_OFF
0
R/W
Control of limiter AGC (automatic gain control). Limits high
dynamic range of electrete/MEMS microphone (e.g. user
shouts or blows into microphone)
0: automatic gain control enabled
1: automatic gain control disabled
6:5
PRE1_Gain
00
R/W
Sets the gain of the microphone 1 preamplifier (gain from
microphone inputs to N5)
00: gain set to 28 dB
01: gain set to 34 dB
10: gain set to 40 dB
11: reserved, do not use.
4:0
M1R_VOL
00000
R/W
volume settings for right microphone input 1, adjustable in 32
steps @ 1.5dB; gain from microphone amplifier (N6) to mixer
input (N15)
11111: 6 dB gain
11110: 4.5 dB gain
..
00001: -39 dB gain
00000: -40.5 dB gain
Table 54 MIC1_L Register
Name
Base
Default
MIC1_L
2-wire serial
00h
Left Microphone Input 1 Register
Offset: 07h
Configures the gain from microphone 1 amplifier output up to mixer input (Σ) and
controls MUTE switch D.
This register is reset when the block is disabled in AudioSet1 register (14h) or at a
DVDD-POR. The register cannot be written when the block is disabled.
Bit
Bit Name
Default
Access
Bit Description
7
M1SUP_OFF
0
R/W
0: microphone 1 supply enabled
1: microphone supply disabled
6
MUTE_OFF_E
0
R/W
Control of MUTE switch E
0: microphone input 1 set to mute
1: normal operation
5
RDET1_OFF
0
R/W
Disables the microphone 1 detect function (30kOhm pull-up
from MIC1S to AVDD) to use the terminal as ADC-10 input
0: microphone 1 detection enabled
1: microphone detection disabled
4:0
M1L_VOL
00000
R/W
volume settings for left microphone 1 input, adjustable in 32
steps @ 1.5dB; gain from microphone amplifier (N6) to mixer
input (N14)
11111: 6 dB gain
11110: 4.5 dB gain
..
00001: -39 dB gain
00000: -40.5 dB gain
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