ADMP404 Datasheet PDF - Analog Devices
| Part Number | ADMP404 | |
| Description | Omnidirectional Microphone | |
| Manufacturers | Analog Devices | |
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Preliminary Technical Data
Omnidirectional Microphone withwww.DataSheet4U.com
Bottom Port and Analog Output
ADMP404
FEATURES
Tiny 3.35 mm × 2.50 mm × 0.88 mm surface-mount package
High SNR of 62 dBA
High sensitivity of −38 dBV
Flat frequency response from 100 Hz to 15 kHz
Low current consumption: <250 µA
Single-ended analog output
High PSRR of 70 dB
Compatible with Sn/Pb and Pb-free solder processes
RoHS/WEEE compliant
APPLICATIONS
Smartphones and feature phones
Digital video cameras
Bluetooth headsets
Video phones
Teleconferencing systems
GENERAL DESCRIPTION
The ADMP404 is a high quality, low cost, low power, analog
output bottom-ported omnidirectional MEMS microphone.
The ADMP404 consists of a MEMS microphone element, an
impedance converter, and an output amplifier. The ADMP404
sensitivity specification makes it an excellent choice for both
near field and far field applications. The ADMP404 has a high
SNR and flat, wideband frequency response, resulting in natural
sound with high intelligibility. Low current consumption
enables long battery life for portable applications. A built-in
particle filter provides high reliability. The ADMP404 complies
with the TIA-920 Telecommunications Telephone Terminal
Equipment Transmission Requirements for Wideband Digital
Wireline Telephones standard.
The ADMP404 is available in an ultraminiature 3.35 mm ×
2.50 mm × 0.88 mm surface-mount package. It is reflow solder
compatible with no sensitivity degradation. The ADMP404 is
halide free.
FUNCTIONAL BLOCK DIAGRAM
ASIC
MEMS
MEMBRANE
BACKPLATE
ADMP404
IMPEDANCE
CONVERTER
OUTPUT AMPLIFIER
VDD
OUTPUT
GND
Figure 1.
Rev. PrH
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityisassumedbyAnalogDevices for itsuse,nor for anyinfringementsofpatentsor other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113
©2010 Analog Devices, Inc. All rights reserved.
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Preliminary Technical Data
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
Table 4. Pin Function Descriptions
Pin No.
Mnemonic
1 OUTPUT
2 GND
3 VDD
GND
2
1
OUTPUT
ADMP404
3
VDD
TOP VIEW
(TERMINAL SIDE DOWN)
Not to Scale
Figure 3. Pin Configuration
Description
Analog Output Signal.
Ground.
Power Supply.
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Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for ADMP404 electronic component. |
| Information | Total 12 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ ADMP404.PDF Datasheet ] | |
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