ADMP504ACEZ datasheet(3/12 Pages) AD

tên linh kiện	ADMP504ACEZ

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

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Data Sheet

ADMP504

Rev. 0 | Page 3 of 12

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

−41

−38

−35

dBV

Signal-to-Noise Ratio

SNR

20 Hz to 20 kHz, A-weighted

dBA

Equivalent Input Noise

EIN

20 Hz to 20 kHz, A-weighted

dBA SPL

Dynamic Range

Derived from EIN and maximum acoustic input

Frequency Response1

Low frequency −3 dB point

100

High frequency −3 dB point

>20

kHz

Total Harmonic Distortion

THD

104 dB SPL

Power Supply Rejection

PSR

217 Hz, 100 mV p-p square wave superimposed on

VDD = 1.8 V

dBV

Maximum Acoustic Input

Peak, 10% THD

120

dB SPL

POWER SUPPLY

Supply Voltage

VDD

1.6

3.3

Supply Current

VDD = 1.8 V

180

200

µA

VDD = 3.3 V

200

225

µA

OUTPUT CHARACTERISTICS

Output Impedance

ZOUT

200

Output DC Offset

0.8

Output Current Limit

µA

Maximum Output Voltage

120 dB SPL input, peak

0.25

Noise Floor

20 Hz to 20 kHz, A-weighted, rms

−103

dBV

See Figure 5 and Figure 7.

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