Document
Data Sheet
Ultralow Noise Microphone with Bottom Port and Analog Output
ADMP504
FEATURES
FUNCTIONAL BLOCK DIAGRAM
Tiny, 3.35 mm × 2.50 mm × 0.88 mm surface-mount package
Omnidirectional response
Very high SNR of 65 dBA Sensitivity of −38 dBV
OUTPUT AMPLIFIER
OUTPUT
Extended frequency response from 100 Hz to 20 kHz
Low current consumption: 180 µA Single-ended analog output 120 dB maximum SPL High PSR of 70 dBV Compatible with Sn/Pb and Pb-free solder processes
E RoHS/WEEE compliant
APPLICATIONS
T Smartphones and feature phones
Tablet computers Teleconferencing systems Digital still and video cameras
E Bluetooth headsets
Notebook PCs Security and surveillance
L GENERAL DESCRIPTION
The ADMP5041 is a high performance, very low noise, low power, analog output, bottom-ported omnidirectional MEMS
O microphone. The ADMP504 consists of a MEMS microphone
element, an impedance converter and an output amplifier. The ADMP504 sensitivity specification makes it an excellent choice
S for both near field and far field applications. The ADMP504 is
function- and pin-compatible with the ADMP404 microphone, providing an easy upgrade path.
The ADMP504 has very high SNR and extended wideband
OB frequency response, resulting in natural sound with high
10140-001
ADMP504
POWER
VDD GND
Figure 1.
10140-011
Figure 2. Isometric Views of ADMP504 Microphone Package
intelligibility. Low current consumption enables long battery life for portable applications. The ADMP504 complies with the TIA-920 Telecommunications Telephone Terminal Equipment Transmission Requirements for Wideband Digital Wireline Telephones standard. The ADMP504 is available in an ultraminiature 3.35 mm × 2.5 mm × 0.88 mm surface-mount package. It is reflow solder compatible with no sensitivity degradation. The ADMP504 is halide free.
1 Protected by U.S. Patents 7,449,356; 7,825,484; 7,885,423; 7,961,897. Other patents are pending.
Rev. A
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ADMP504
Data Sheet
TABLE OF CONTENTS
Features .............................................................................................. 1
Supporting Documents ................................................................7
Applications....................................................................................... 1
Handling Instructions.......................................................................8
Functional Block Diagram .............................................................. 1
Pick-and-Place Equipment ..........................................................8
General Description ......................................................................... 1
Reflow Solder .................................................................................8
Revision History ............................................................................... 2
Board Wash ....................................................................................8
Specifications..................................................................................... 3
PCB Land Pattern Layout.................................................................9
Absolute Maximum Ratings............................................................ 4
Reliability Specifications................................................................ 10
ESD Caution.................................................................................. 4
Pin Configuration and Function Descriptions............................. 5
Typical Performance Characteristics ............................................. 6
Applications Information ................................................................ 7
E REVISION HISTORY T 6/12—Rev. 0 to Rev. A
Changes to Figure 2 .......................................................................... 1 Changes to General Description Section ...................................... 1 Change to Power Supply Rejection Parameter, Table 1 ............... 3
E Changes to Supporting Documents Section ................................. 7
Changes to Reflow Solder Section.................................................. 8
OBSOL 10/11—Revision 0: Initial Version
Outline Dimensions ....................................................................... 11 Ordering Guide ..........................................................................