ADMP401-1 datasheet(3/8 Pages) AD

tên linh kiện	ADMP401-1

Giải thích chi tiết về linh kiện	Omnidirectional Microphone with Bottom Port and Analog Output

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Preliminary Technical Data

ADMP401-1

Rev. PrB | Page 3 of

8

SPECIFICATIONS

TA = 25°C, VDD = 1.8 V, unless otherwise noted. All minimum and maximum specifications are guaranteed. Typical specifications are not

guaranteed.

Table 1.

Parameter

Symbol

Test Conditions/Comments

Min

Typ

Max

Unit

PERFORMANCE

Directionality

Omni

Sensitivity

1 kHz, 94 dB SPL

−40

−37

−34

dBV

Signal-to-Noise Ratio

SNR

60

62

dBA

Equivalent Input Noise

EIN

32

dBA SPL

Frequency Response

100 Hz to 10 kHz

−2

0

+2

dB

100 Hz to 12 kHz

−3

0

+2

dB

Total Harmonic Distortion

THD

105 dB SPL

3

%

Power Supply Rejection Ratio

PSRR

217 Hz, 100 mV p-p square wave super-

imposed on VDD = 1.8 V

50

dB

Maximum Acoustic Input

Peak

120

dB SPL

POWER SUPPLY

Supply Voltage

VDD

1.5

3.6

V

Supply Current

IS

200

μA

OUTPUT CHARACTERISTICS

Output Impedance

ZOUT

200

Ω

Polarity

Noninverting1

1 Positive going (increasing) pressure on the membrane results in a positive going (increasing) output voltage.

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