AS3412 datasheet(15/85 Pages) AMSOSRAM

номер детали	AS3412

подробное описание детали	Ultra Small ANC Speaker Driver

PDF	85 Pages

Scroll/Zoom	100%

производитель	AMSOSRAM [ams-OSRAM AG]

домашняя страница	https://ams-osram.com/

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15 / 85 page

Page 14

ams Datasheet

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[v1-00] 2016-Apr-06

AS3412 − Detailed Description

Parameter

VBAT=1.8V, TA= 25ºC, CAC=10μF, CMIC=4.7μF and RMICIN=2.2kΩ

unless otherwise specified.

Figure 14:

Microphone Parameter

Symbol

Parameter

Condition

Min

Typ

Max

Unit

VMICIN0

Input Signal Level

AMIC = 10dB

mVRMS

VMICIN1AMIC = 20dB

mVRMS

VMICIN2AMIC = 30dB

mVRMS

SNR

Signal to Noise Ratio

0dB gain, High quality mode,

AGC off

118.5

10dB gain, High quality mode,

AGC off

109

20dB gain, High quality mode,

AGC off

99.5

0dB gain, ECO mode, AGC off

117

10dB gain, ECO mode, AGC off

107

20dB gain, ECO mode, AGC off

VNOISE-A

A-Weighted Output Noise

Floor

0dB gain, 20Hz – 20kHz

bandwidth, high quality

1.2

μV

10dB gain, 20Hz – 20kHz

bandwidth, High quality

4.2

μV

20dB gain, 20Hz – 20kHz

bandwidth, High quality

13.5

μV

0dB gain, 20Hz – 20kHz

bandwidth, ECO mode

1.4

μV

10dB gain, 20Hz – 20kHz

bandwidth, ECO mode

4.6

μV

20dB gain, 20Hz – 20kHz

bandwidth, ECO mode

14.8

μV

IMIC

Block Current

Consumption

VBAT = 1.8V; no signal, stereo,

normal mode

0.82

1.4

VBAT = 1.8V; no signal, stereo,

ECO mode

0.58

1.2

1.4

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