ISD
TON
TOFF
Shut Down Current
SD pin = GND
0.1
0.7
40
60
μA (max)
ms (max)
ms (max)
Turn-On Time (Note 9)
Turn-Off Time (Note 9)
GA0, GA1, GA2, GA3, GB0, GB1, GB2,
Mute1, Mute2,
Mode 0, Mode 1, SD
VIH
VIL
Logic High Input Threshold
Logic Low Input Threshold
1.4
0.4
V (min)
V (max)
GA0, GA1, GA2, GA3, GB0, GB1, GB2,
Mute1, Mute2,
Mode 0, Mode 1, SD
Electrical Characteristics 5.0V (Note 1)
Unless otherwise specified, all limits guaranteed for TA = 25°C, VDD = 5V, VIN = 18mVP-P, SD = VDD, Pre Amp gain = 20dB, Post
Amp gain = 6dB, RL = 100kΩ, and CL = 4.7pF, f = 1kHz pass through mode.
LMV1091
Typical Limit
(Note 6) (Note 7)
63
Units
(Limits)
Symbol
Parameter
Conditions
VIN = 18mVP-P, A-weighted, Audio band
dB
dB
SNR Signal-to-Noise Ratio
VOUT = 18mVP-P
,
65
voice band (300–3400Hz)
A-Weighted
eN
Input Referred Noise level
Maximum Input Signal
5
μVRMS
VIN
mVP-P (min)
VRMS (min)
THD+N < 1%
880
1.2
820
1.1
f = 1kHz, THD+N < 1%
between differential output
Maximum AC Output Voltage
DC Output Voltage
VOUT
820
0.1
mV
% (max)
kΩ
THD+N Total Harmonic Distortion + Noise
Differential Out+ and Out-
0.2
ZIN
Input Impedance
142
220
ZOUT
Output Impedance
Ω
Minimum
Maximum
6
36
dB
dB
AM
AMR
Microphone Preamplifier Gain Range
Microphone Preamplifier Gain Adjustment
Resolution
1.7
2.3
dB (min)
dB (max)
2
Minimum
Maximum
6
18
dB
dB
AP
Post Amplifier Gain Range
2.6
3.4
dB (min)
dB (max)
APR
Post Amplifier Gain Adjustment Resolution
Far Field Noise Suppression Electrical
Signal-to-Noise Ratio Improvement Electrical
3
f = 1kHz (See Test Method)
f = 300Hz (See Test Method)
34
42
26
FFNSE
SNRIE
dB
dB
f = 1kHz (See Test Method)
f = 300Hz (See Test Method)
26
33
18
Input Referred, Input AC grounded
fRIPPLE = 217Hz (VRIPPLE = 100mVP-P
)
99
95
60
85
80
dB (min)
dB (min)
dB
PSRR Power Supply Rejection Ratio
CMRR Common Mode Rejection Ratio
fRIPPLE = 1kHz (VRIPPLE = 100mVP-P
)
Input referred
1.85
2.15
V ( min)
V (max)
VBM
IBIAS = 1.2mA
Microphone Bias Supply Voltage
2.0
Microphone bias noise voltage on VREF pin
Supply Quiescent Current
A-Weighted, CB = 10nF
VIN = 0V
7
eVBM
IDDQ
μVRMS
0.60
0.8
mA (max)
VIN = 25mVP-P both inputs
Noise cancelling mode
IDD
Supply Current
0.60
0.1
mA
ISD
TON
TOFF
Shut Down Current
Turn On Time
SD pin = GND
μA
40
60
ms (max)
ms (max)
Turn Off Time
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