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LMV1090 Datasheet(PDF) 6 Page - Texas Instruments |
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LMV1090 Datasheet(HTML) 6 Page - Texas Instruments |
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6 / 25 page  LMV1090 SNAS472I – MAY 2009 – REVISED MAY 2013 www.ti.com Electrical Characteristics 3.3V (1)(2) (continued) Unless otherwise specified, all limits specified for TA = 25°C, VDD = 3.3V, VIN = 18mVP-P, f = 1kHz, EN = VDD, Pre Amp gain = 20dB, Post Amp gain = 6dB, RL = 100kΩ, and CL = 4.7pF, f = 1kHz pass through mode. LMV1090 Units Symbol Parameter Conditions (Limits) Typical(3) Limit(4) Differential Out+, Out- Maximum AC Output Voltage 1.2 1.1 VRMS (min) THD+N < 1% VOUT DC Level at Outputs Out+, Out- 820 mV THD+N Total Harmonic Distortion + Noise Differential Out+ and Out- 0.1 0.2 % (max) ZIN Input Impedance 142 k Ω ZOUT Output Impedance (Differential) 220 Ω RLOAD 10 k Ω (min) ZLOAD Load Impedance (Out+, Out-)(5) CLOAD 100 pF (max) minimum 6 dB AM Microphone Preamplifier Gain Range maximum 36 dB Microphone Preamplifier Gain 1.7 dB (min) AMR 2 Adjustment Resolution 2.3 dB (max) minimum 6 dB AP Post Amplifier Gain Range maximum 18 dB 2.6 dB (min) APR Post Amplifier Gain Resolution 3 3.4 dB (max) f = 1kHz (See Test Methods) 34 26 dB FFNSE Far Field Noise Suppression Electrical f = 300Hz (See Test Methods) 42 dB Signal-to-Noise Ratio Improvement f = 1kHz (See Test Methods) 26 18 dB SNRIE Electrical f = 300Hz (See Test Methods) 33 dB Input Referred, Input AC grounded PSRR Power Supply Rejection Ratio fRIPPLE = 217Hz (VRIPPLE = 100mVP-P) 99 85 dB (min) fRIPPLE = 1kHz (VRIPPLE = 100mVP-P) 95 80 dB (min) CMRR Common Mode Rejection Ratio input referred 60 dB 1.85 V (min) VBM Microphone Bias Supply Voltage IBIAS = 1.2mA 2.0 2.15 V (max) eVBM Mic bias noise voltage on VREF pin A-Weighted, CB = 10nF 7 μVRMS IDDQ Supply Quiescent Current VIN = 0V 0.60 0.80 mA (max) VIN = 25mVP-P both inputs IDD Supply Current 0.60 mA Noise cancelling mode ISD Shut Down Current EN pin = GND 0.1 0.7 μA (max) IDDI 2C I2C supply current I2C Idle Mode 25 100 nA (max) TON Turn-On Time(6) 40 ms (max) TOFF Turn-Off Time(6) 60 ms (max) (5) Ensured by design. (6) Ensured by design. 6 Submit Documentation Feedback Copyright © 2009–2013, Texas Instruments Incorporated Product Folder Links: LMV1090 |
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