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MAX9814 डेटा पत्रक PDF( Datasheet डाउनलोड )


डेटा पत्रक - Microphone Amplifier - Maxim Integrated Products

भाग संख्या MAX9814
समारोह Microphone Amplifier
मैन्युफैक्चरर्स Maxim Integrated Products 
लोगो Maxim Integrated Products लोगो 
पूर्व दर्शन
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<?=MAX9814?> डेटा पत्रक पीडीएफ

MAX9814 pdf
MAX9814
Microphone Amplifier with AGC and
Low-Noise Microphone Bias
Absolute Maximum Ratings
VDD to GND.............................................................-0.3V to +6V
All Other Pins to GND............................... -0.3V to (VDD + 0.3V)
Output Short-Circuit Duration.....................................Continuous
Continuous Current (MICOUT, MICBIAS).......................±100mA
All Other Pins....................................................................±20mA
Continuous Power Dissipation (TA = +70°C)
14-Pin TDFN-EP
(derate 16.7mW/°C above +70°C).........................1481.5mW
Operating Temperature Range............................ -40°C to +85°C
Junction Temperature.......................................................+150°C
Lead Temperature (soldering, 10s).................................. +300°C
Bump Temperature (soldering) Reflow............................. +235°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these
or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect
device reliability.
Electrical Characteristics
(VDD = 3.3V, SHDN = VDD, CCT = 470nF, CCG = 2μF, GAIN = VDD, TA = TMIN to TMAX, unless otherwise specified. Typical values
are at TA = +25°C.) (Note 1)
PARAMETER
GENERAL
Operating Voltage
Supply Current
Shutdown Supply Current
Input-Referred Noise Density
Output Noise
Signal-to-Noise Ratio
SYMBOL
VDD
IDD
ISHDN
en
SNR
CONDITIONS
Guaranteed by PSRR test
BW = 20kHz, all gain settings
BW = 20kHz
BW = 22Hz to 22kHz
(500mVRMS output signal)
A-weighted
MIN TYP MAX UNITS
2.7 5.5 V
3.1 6 mA
0.01 1
µA
30 nV/√Hz
430 µVRMS
61
dB
64
Dynamic Range
DR (Note 2)
60 dB
Total Harmonic Distortion Plus
Noise
Amplifier Input BIAS
Maximum Input Voltage
Input Impedance
Maximum Gain
THD+N
VIN
VIN_MAX
ZIN
A
fIN = 1kHz, BW = 20Hz to 20kHz,
RL = 10kΩ, VTH = 1V (threshold = 2VP-P),
VIN = 0.5mVRMS, VCT = 0V
fIN = 1kHz, BW = 20Hz to 20kHz,
RL = 10kΩ, VTH = 0.1V (threshold =
200mVP-P), VIN = 30mVRMS, VCT = 2V
1% THD
1.14
GAIN = VDD
GAIN = GND
39.5
49.5
0.04
0.2
1.23
100
100
40
50
%
1.32
40.5
50.6
V
mVP-P
kΩ
dB
GAIN = unconnected
59.5 60 60.5
Minimum Gain
GAIN = VDD
GAIN = GND
18.7 20 20.5
29.0
30 30.8 dB
GAIN = unconnected
38.7 40 40.5
Maximum Output Level
Regulated Output Level
AGC Attack Time
VOUT_RMS­
tATTACK
1% THD+N, VTH = MICBIAS
AGC enabled, VTH = 0.7V
CCT = 470nF (Note 3)
A/R = GND
1.26
0.707
1.40
1.1
1:500
1.54
VRMS
VP-P
ms
Attack/Release Ratio
A/R A/R = VDD
A/R = unconnected
1:2000
1:4000
ms/ms
www.maximintegrated.com
Maxim Integrated 2

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