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LMV1091 Datasheet(PDF) 10 Page - Texas Instruments

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Part # LMV1091
Description  Dual Input, Far Field Noise Suppression Microphone Amplifier
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

LMV1091 Datasheet(HTML) 10 Page - Texas Instruments

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10k
FREQUENCY (Hz)
-110
+0
-100
-90
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FREQUENCY (Hz)
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20k
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1k
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+0
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FREQUENCY (Hz)
20
20k
100
1k
10k
-110
+0
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
FREQUENCY (Hz)
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20k
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10k
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INPUT VOLTAGE (VP-P)
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INPUT VOLTAGE (VP-P)
LMV1091
SNAS481C – OCTOBER 2009 – REVISED MAY 2013
www.ti.com
Typical Performance Characteristics (continued)
Unless otherwise specified, TJ = 25°C, VDD = 3.3V, Input Voltage = 18mVP-P, f = 1kHz, pass through mode, Pre Amp gain =
20dB, Post Amp gain = 6dB, RL = 100kΩ, and CL = 4.7pF.
THD+N
THD+N
vs
vs
Input Voltage
Input Voltage
f = 1kHz
f = 1kHz
Mic1 Pass Through Mode
Mic2 Pass Through Mode
Figure 11.
Figure 12.
PSRR
PSRR
vs
vs
Frequency
Frequency
Pre Amp Gain = 20dB, Post Amp Gain = 6dB
Pre Amp Gain = 20dB, Post Amp Gain = 6dB
VRIPPLE = 100mVP-P, Mic1 = Mic2 = AC GND
VRIPPLE = 100mVP-P, Mic1 = Mic2 = AC GND
Mic1 Pass Through Mode
Mic2 Pass Through Mode
Figure 13.
Figure 14.
PSRR
vs
Frequency
Pre Amp Gain = 20dB, Post Amp Gain = 6dB
Far Field Noise Suppression Electrical
VRIPPLE = 100mVP-P, Mic1 = Mic2 = AC GND
vs
Noise Canceling Mode
Frequency
Figure 15.
Figure 16.
10
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