ADMP441
ADMP441 is Omnidirectional Microphone manufactured by Analog Devices.
FEATURES
FUNCTIONAL BLOCK DIAGRAM
Digital I²S interface with high precision 24-bit data
High SNR of 61 d BA High sensitivity of
- 26 d BFS Flat frequency response from 60 Hz to 15 k Hz Low current consumption of 1.4 m A
FILTER
POWER
HARDWARE
MANAGEMENT CONTROL
I2S SERIAL PORT
SCK SD WS
High PSR of
- 75 d BFS Small 4.72 mm × 3.76 mm × 1 mm surface-mount package patible with Sn/Pb and Pb-free solder processes Ro HS/WEEE pliant
E APPLICATIONS
Teleconferencing systems Gaming consoles
T Mobile devices
Laptops Tablets
E Security systems
GENERAL DESCRIPTION
L The ADMP4411 is a high performance, low power, digital output, omnidirectional MEMS microphone with a bottom port. The plete ADMP441 solution consists of a MEMS sensor, signal conditioning, an analog-to-digital converter, antialiasing filters,
O power management, and an industry standard 24-bit I²S inter- face. The I²S interface allows the ADMP441 to connect directly to digital processors, such as DSPs and microcontrollers, with-
OBS out the need for an audio codec in the system.
VDD GND GND GND CHIPEN
L/R
09568-001
Figure 1.
09568-015
BOTTOM
Figure 2. Isometric Views of ADMP441 Microphone Package
The ADMP441 has a high SNR and high sensitivity, making it an excellent choice for far field applications. The ADMP441 has a flat wideband frequency response, resulting in natural sound with high intelligibility.
The ADMP441 is available in a thin 4.72 mm × 3.76 mm × 1 mm surface-mount package. It is reflow solder patible with no sensitivity degradation. The ADMP441 is halide free.
1 Protected by U.S. Patents 7,449,356; 7,825,484; 7,885,423; and 7,961,897. Other patents are pending.
Rev. B
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