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ADMP504 데이터시트 PDF




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부품번호 ADMP504 기능
기능 Ultralow Noise Microphone
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ADMP504 데이터시트, 핀배열, 회로
Data Sheet
Ultralow Noise Microphone with
Bottom Port and Analog Output
ADMP504
FEATURES
Tiny, 3.35 mm × 2.5 mm × 0.88 mm surface-mount package
Omnidirectional response
Very high SNR of 65 dBA
Sensitivity of −38 dBV
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
RoHS/WEEE compliant
FUNCTIONAL BLOCK DIAGRAM
OUTPUT
AMPLIFIER
OUTPUT
ADMP504
POWER
VDD GND
Figure 1.
APPLICATIONS
Smartphones and feature phones
Tablet computers
Teleconferencing systems
Digital still and video cameras
Bluetooth headsets
Notebook PCs
Security and surveillance
GENERAL DESCRIPTION
The ADMP5041 is a high performance, very low noise, low
power, analog output, bottom-ported omnidirectional MEMS
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
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
frequency response, resulting in natural sound with high
http://www.DataSheet4U.net/
TOP ISO
BOTTOM ISO
Figure 2. Isometric Views of ADMP504 Microphone Package
intelligibility. Low current consumption enables long battery
life for portable applications. A built-in particle filter provides
high reliability. The ADMP504 complies with the TIA-920
Telecommunications Telephone Terminal Equipment Transmis-
sion 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. 0
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or 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
©2011 Analog Devices, Inc. All rights reserved.
datasheet pdf - http://www.DataSheet4U.net/




ADMP504 pdf, 반도체, 판매, 대치품
ADMP504
ABSOLUTE MAXIMUM RATINGS
Table 2.
Parameter
Supply Voltage
Sound Pressure Level (SPL)
Mechanical Shock
Vibration
Temperature Range
Rating
−0.3 V to +3.6 V
160 dB
10,000 g
Per MIL-STD-883 Method 2007,
Test Condition B
−40°C to +85°C
Data Sheet
Stresses above those listed under Absolute Maximum Ratings
may cause permanent damage to the device. This is a stress
rating only; functional operation of the device at these or any
other conditions above those indicated in the operational
section of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect
device reliability.
ESD CAUTION
TP
TL TSMAX
TSMIN
RAMP-UP
tP
CRITICAL ZONE
TL TO TP
tL
tS
PREHEAT
RAMP-DOWN
t25°C TO PEAK
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TIME
Figure 3. Recommended Soldering Profile Limits
Table 3. Recommended Soldering Profile Limits
Profile Feature
Average Ramp Rate (TL to TP)
Preheat
Minimum Temperature (TSMIN)
Maximum Temperature (TSMAX)
Time (TSMIN to TSMAX), tS
Ramp-Up Rate (TSMAX to TL)
Time Maintained Above Liquidous (tL)
Liquidous Temperature (TL)
Peak Temperature (TP)
Time Within 5°C of Actual Peak Temperature (tP)
Ramp-Down Rate
Time 25°C to Peak Temperature
Sn63/Pb37
1.25°C/sec maximum
100°C
150°C
60 sec to 75 sec
1.25°C/sec
45 sec to 75 sec
183°C
215°C + 3°C/−3°C
20 sec to 30 sec
3°C/sec maximum
5 minutes maximum
Pb-Free
1.25°C/sec maximum
150°C
200°C
60 sec to 75 sec
1.25°C/sec
~50 sec
217°C
260°C + 0°C/−5°C
20 sec to 30 sec
3°C/sec maximum
5 minutes maximum
Rev. 0 | Page 4 of 12
datasheet pdf - http://www.DataSheet4U.net/

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ADMP504 전자부품, 판매, 대치품
Data Sheet
ADMP504
APPLICATIONS INFORMATION
The ADMP504 output can be connected to a dedicated codec
microphone input (see Figure 8) or to a high input impedance
gain stage (see Figure 9). A 0.1 µF ceramic capacitor placed close
to the ADMP504 supply pin is used for testing and is recom-
mended to adequately decouple the microphone from noise on
the power supply. A dc-blocking capacitor is required at the
output of the microphone. This capacitor creates a high-pass
filter with a corner frequency at
fC = 1/(2π × C × R)
where R is the codec’s input impedance.
A minimum value of 2.2 μF is recommended in Figure 8
because the input impedance of the ADAU1361/ADAU1761
can be as low as 2 kΩ at its highest PGA gain setting, which
would result in a high-pass filter corner frequency at about
37 Hz.
Figure 9 shows the ADMP504 connected to an ADA4897-1
op amp configured as a noninverting preamplifier.
VDD
ADMP504
OUTPUT
GND
0.1µF
2.2µF
MINIMUM
MICBIAS
ADAU1761
OR
ADAU1361
LINN
LINP
CM
Figure 8. ADMP504 Connected to the Analog Devices ADAU1761
or ADAU1361 Codec
GAIN = (R1 + R2)/R1
R1
VREF
R2
0.1µF
VDD
ADMP504
OUTPUT
GND
1µF
MINIMUM
10k
ADA4897-1
VOUT
VREF
Figure 9. ADMP504 Connected to the ADA4897-1 Op Amp
SUPPORTING DOCUMENTS
Evaluation Board User Guide
UG-325, EVAL-ADMP504-FLEX: Bottom-Ported Analog Output
MEMS Microphone Evaluation Board
Circuit Note
CN-0207, High Performance iMEMS Analog Microphone’s
Simple Interface to SigmaDSP Audio Codec
Application Notes
AN-1003, Recommendations for Mounting and Connecting
Analog Devices, Inc., Bottom-Ported MEMS Microphones
AN-1068, Reflow Soldering of the MEMS Microphone
AN-1112, Microphone Specifications Explained
AN-1124, Recommendations for Sealing Analog Devices, Inc.,
http://www.DataSheet4U.net/
Bottom-Port MEMS Microphones from Dust and Liquid
Ingress
Rev. 0 | Page 7 of 12
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부품번호상세설명 및 기능제조사
ADMP504

Ultralow Noise Microphone

Analog Devices
Analog Devices

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