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AS3525 Datasheet(PDF) 139 Page - ams AG |
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AS3525 Datasheet(HTML) 139 Page - ams AG |
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139 / 194 page ![]() AS3525-A/-B C22O22 Data Sheet, Confidential © 2005-2009, austriamicrosystems AG, 8141 Unterpremstaetten, Austria-Europe. All Rights Reserved. www.austriamicrosystems.com Revision 1.13 139 - 194 7.4.8.5 Parameter Table 121 Microphone Inputs Parameter Symbol Parameter Notes Min Typ Max Unit A0 Gain programmable gain -40.5 6 dB Ax Gain Step-Size 1.5 dB RinMIC Input Resistance differential 15 kOhm AMIC0 MicAmp_Gain0 28 dB AMIC1 MicAmp_Gain1 34 dB AMIC2 MicAmp_Gain2 40 dB SoftClip_AGC_Range 15*2.0 dB Attack_Time 60 us Release_Time 120 ms VInnom0 Nominal_Input_Voltage0 MicInGain = 0dB, MicAmp_Gain0 40 mVp VInnom1 Nominal_Input_Voltage1 MicInGain = 0dB, MicAmp_Gain1 20 mVp VInnom2 Nominal_Input_Voltage2 MicInGain = 0dB, MicAmp_Gain2 10 mVp SNR Signal to Noise Ratio 90 dB Mute Attenuation 120 dB Microphone Supply VMICsup Microphone Supply Voltage 0-4mA 2.95 V IMIClim Mic. Supply Current Limit 10 mA IMICdet Mic. Detection Current 50 uA IREMdet Remote Detection Current microphone supply current step 500 uA Vnoise Voltage Noise 5.7 uV BVDD = 3.3V, TA= 25oC unless otherwise mentioned |
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