Introduction:
Microphone sensors are essential devices that allow us to capture sound and convert it into electrical signals, playing a crucial role in modern technology.
From simple voice recordings to complex audio processing, these sensors translate acoustic energy into electrical energy, enabling applications in communication systems, entertainment, and industrial environments. Different types of microphone sensor have unique operating principles and are tailored to specific uses. Understanding how these sensors work, and their respective advantages is crucial for selecting the right microphone for any application.
How Microphone Sensors Work:
At its core, a microphone sensor is a transducer—a device that converts energy from one form to another. In this case, the energy conversion occurs from acoustic energy (sound waves) to electrical energy (voltage). The process begins when sound waves hit the diaphragm of the microphone, causing it to vibrate. These vibrations are then transformed into an electrical signal that mirrors the sound wave’s amplitude and frequency.
- Sound Waves Input: Incoming sound waves from the environment.
- Diaphragm: The diaphragm vibrates in response to sound waves, creating mechanical motion.
- Transduction Mechanism (Transducer): Converts mechanical vibrations into an electrical signal. This could be:
- Electromagnetic (Dynamic Microphone)
- Capacitive (Condenser Microphone)
- MEMS-based Transduction (MEMS Microphone)
- Piezoelectric (Piezo Microphone)
- Pre-Amplifier: Amplifies the weak electrical signal generated by the transduction mechanism.
- Signal Conditioning: May include filtering, equalization, or noise reduction to optimize the signal quality.
- Output Signal: The processed electrical signal is outputted to a recording, processing, or transmission system.
This conversion process can vary depending on the type of microphone sensor used. Let’s explore the most common types:
Types of Microphone Sensors:
Microphone sensors come in various types, each with different characteristics and suitable applications. They can mainly be divided into dynamic microphones, capacitor microphones, and microelectromechanical system (MEMS) microphones.
1. Dynamic Microphone:
Dynamic microphones are among the most common and widely used types of microphones in various industries, from live sound production to broadcasting and recording.
They operate on the principle of electromagnetic induction. Here’s a breakdown of the process:
- Diaphragm and Coil: At the heart of a dynamic microphone is a diaphragm made of a thin material, typically plastic or Mylar, attached to a coil of wire. When sound waves hit the diaphragm, they cause it to vibrate.
- Magnet: Surrounding the coil is a magnet, creating a magnetic field around it.
- Electromagnetic Induction: As the diaphragm vibrates, it moves the coil back and forth within the magnetic field. This motion induces an electrical current in the coil. The electrical signal produced by this current is proportional to the sound waves that initially caused the diaphragm to move.
- Output: This electrical signal is then sent to an amplifier or recording device where it is converted back into sound or stored as a digital or analog signal.
Advantages:
- Dynamic microphone sensors are known for their durability, Handling High Sound Pressure Levels (SPL), cost-effectiveness, and lack of external power requirement (self-powered).
Limitations:
- The sensitivity of dynamic microphone sensors is generally Low, which means they may not capture the subtle nuances of sound as effectively.
- Dynamic microphones generally have a narrower frequency response range than condenser microphones, which can affect the quality of recordings, especially at the higher and lower ends of the frequency spectrum.
2. Condenser Microphone:
Condenser microphones, also known as capacitor microphones, are widely regarded for their high sensitivity and accuracy in capturing sound.
The working principle of a condenser microphone relies on capacitive transduction. Here’s a step-by-step breakdown:
- Capacitor Plates (Diaphragm and Backplate): A condenser microphone consists of two plates forming a capacitor: a thin, lightweight diaphragm and a stationary backplate. The diaphragm acts as one plate of the capacitor, while the backplate is the other.
- Sound Waves and Diaphragm Movement: When sound waves hit the diaphragm, it vibrates, changing the distance between the diaphragm and the backplate. These vibrations cause variations in the capacitance of the system.
- Electrical Charge: A charge is applied across the diaphragm and the backplate, typically via an external power source such as phantom power. As the diaphragm moves, the capacitance changes, causing corresponding variations in the electrical signal.
- Signal Output: These variations in the electrical signal are then amplified and output as a sound signal that closely replicates the original audio source.
Advantages:
- Condenser microphone sensors have very high sensitivity, allowing them to capture subtle sound details.
- These microphones typically offer a wider frequency response than dynamic microphones, making them suitable for capturing detailed sound, including both low and high frequencies.
- Condenser microphones have a fast transient response, which means they can accurately capture sharp, quick sounds.
Limitations:
- Condenser microphones are generally more delicate than dynamic microphones and may not withstand rough handling, making them less suitable for live performances in harsh environments.
- Due to their high sensitivity, condenser microphones can pick up unwanted background noise, making them less ideal for noisy environments.
One key characteristic of condenser microphones is that they require an external power source to operate. This power can be supplied in the following ways:
- The most common method, phantom power (usually 48V), is supplied through the microphone cable from an audio interface, mixer, or preamp.
- Some portable condenser microphones use batteries as a power source, which is useful in field recording or portable setups.
Electret condenser microphones are a type of condenser microphone with a permanently charged backplate, eliminating the need for an external bias voltage. While they don’t require external power for polarization, they typically include built-in amplifiers, so low-voltage power (1.0V-10V) is still necessary. Their characteristics are otherwise similar to conventional condenser microphones.
Condenser Microphones from Digikey
Applicable Part Numbers
| DigiKey Part Number | Manufacturer Part Number |
|---|---|
| 102-6541-ND | CMEJ-0415-42-LP |
| 102-1721-ND | CMA-4544PF-W |
| 102-1720-ND | CMA-6542PF |
| 668-1197-ND | AOM-4544P-2-R |
| 668-1391-ND | POM-3535L-3-R |
| 668-1676-ND | POM-5038P-C3310-R |
| 433-1155-ND | EM4015LW-38C10NF |
| 668-1425-ND | POM-3535P-3-R |
| 668-1158-ND | POM-2738P-R |
| 668-1424-ND | POW-2742P-C3310-B-R |
| 668-1314-ND | POW-1644P-B-R |
| 668-1596-ND | AOM-5024L-HD-R |
| 102-5634-ND | CMC-9745-37T |
| 102-2190-ND | CME-1538-100LB |
| 423-1121-ND | EK-23024-C36 |
| 423-1160-ND | EK-23024-000 |
| 423-WP-23502-000-ND | WP-23502-000 |
| 423-1064-ND | FG-23629-P16 |
| 423-1123-ND | FG-23629-D65 |
| 423-1368-ND | TO-24611-000 |
| 423-1159-ND | FG-23329-P07 |
| 423-1015-ND | MR-23151-000 |
| 102-6532-ND | CMEJ-4618-42-L015 |
| 102-6542-ND | CMEJ-0415-42-P |
| 2104-MO094204-1-ND | MO094204-1 |
| 668-1460-ND | AOM-4544P-R |
| 102-6540-2-ND,102-6540-1-ND,102-6540-6-ND | CMEJ-0413-42-SMT-TR |
| 102-6547-ND | CMEJ-0627-42-P |
| 102-6549-ND | CMEJ-0605-36-L030 |
| 102-1719-ND | CMA-6542TF-K |
| 102-4103-ND | CMC-9745-44P |
| 102-1725-ND | CMC-5044PF-A |
| 668-1224-ND | AOM-4546P-R |
| 102-1722-ND | CMB-6544PF |
| 102-4098-ND | CMC-6027-32T |
| 102-1724-ND | CMC-5042PF-AC |
| 102-6545-ND | CMEJ-0733-25-L070 |
| CMEJ-9745-37-P-ND | CMEJ-9745-37-P |
| 2104-MW062502-1-ND | MW062502-1 |
| 668-1296-ND | AOM-6738P-R |
| 668-1490-ND | ANM-5254L-LW100-R |
| 668-1196-ND | AOM-6742P-2-R |
| 102-1726-ND | CMC-2742PBJ-A |
| 668-1295-ND | AOM-6738L-R |
| 668-1215-ND | ANM-5254L-R |
| 668-1195-ND | AOM-6742L-R |
| 668-1418-ND | AOM-6746P-R |
| 2104-MW044202-1-ND | MW044202-1 |
| 433-1099-ND | EM-6027P |
| 668-1308-ND | POM-2244L-C33-R |
| 2104-MW064202-1-ND | MW064202-1 |
| 2104-MW042502-1-ND | MW042502-1 |
| 433-1188-ND | EM-4015N-44 |
| 102-5630-ND | CMC-6027-32L100 |
| 668-1175-ND | PUM-3546L-R |
| 102-5629-ND | CMC-6027-24L100 |
| 102-1728-ND | CMI-5247TF-K |
| 102-1727-ND | CMC-2242PBL-A |
| 458-PMOF-9745W-42DQ-ND | PMOF-9745W-42DQ |
| 668-1495-ND | POM-2738L-LW100-R |
| 433-1154-ND | EM6027LW-42C |
| 668-1393-ND | AUM-5047L-3-R |
| 668-1677-ND | POM-5046P-C3310-R |
| 102-1732-ND | CMC-2742WBL-25L |
| 668-1153-ND | POM-2246P-C33-R |
| 102-4474-ND | CMC-9745-130T |
| 102-4641-ND | CMC-4015-40L100 |
| 668-1492-ND | AUM-5047L-3-LW100-R |
| 102-4097-ND | CMC-6027-24T |
| 102-4637-ND | CMC-3015-44L100 |
| 433-EM-6027UN-38-ND | EM-6027UN-38 |
| 668-1155-ND | POM-2735P-R |
| 668-1415-ND | POM-2244P-C3310-2-R |
| 668-1679-ND | PUM-5250L-C3310-R |
| 668-1597-ND | DOM-3027L-HD-R |
| 668-1413-ND | ANM-5054L-2-R |
| 668-1672-ND | PNM-2751L-C3310-R |
| 102-4102-ND | CMC-6027-42L100 |
| 668-1184-ND | TOM-1545P-R |
| 668-1297-ND | AOW-4544P-C3310-B-R |
| 668-POW-3535L-3-LW100-B-R-ND | POW-3535L-3-LW100-B-R |
| 102-4538-ND | CMC-6015-47P |
| 102-5637-ND | CMC-97452-L100 |
| 102-4475-ND | CMC-6035-130T |
| 668-1496-ND | POM-3535L-3-LW100-R |
| 668-1599-ND | ROM-2235L-HD-R |
| 668-AOM-5024L-HD-F-R-ND | AOM-5024L-HD-F-R |
| 102-2191-ND | CMI-4537-SN69 |
| 668-TUM-1842L-HD-ND | TUM-1842L-HD |
| 668-1598-ND | POM-2730L-HD-R |
| 668-1601-ND | TOM-1537L-HD-R |
| 102-5636-ND | CMC-9745-37T3 |
| 668-PUM-2745L-HD-R-ND | PUM-2745L-HD-R |
| 668-1453-ND | POM-3535L-2-R |
| 668-AUM-5241L-HD-ND | AUM-5241L-HD |
| 423-EA-21842-C36-ND | EA-21842-C36 |
| 102-6548-ND | CMEJ-0627-42-SP |
| 2104-MO064404-1-ND | MO064404-1 |
| 102-6531-ND | CMEJ-4618-42-L010 |
| 102-6536-ND | CMEJ-4618-38-L040 |
| 102-6535-ND | CMEJ-4618-38-L060 |
| 102-1723-ND | CMC-5044TF-A |
| 2104-MO093803-2-ND | MO093803-2 |
| 668-1294-ND | AOM-5244L-R |
| 2104-MO064202-3-ND | MO064202-3 |
| 2104-MO044202-4-ND | MO044202-4 |
| 2104-MW063002-1-ND | MW063002-1 |
| 433-1097-ND | EM-9745P |
| 433-1098-ND | EM-9745 |
| 458-1547-ND | PMOF-9767NP-46DQ |
| 102-6537-ND | CMEJ-4618-32-L045 |
| 102-5627-ND | CMC-6022-38L100 |
| 458-1537-ND | PMO-6022PN-48KDQ |
| 2104-MO062504-1-ND | MO062504-1 |
| 2104-MW063602-1-ND | MW063602-1 |
| 668-1499-ND | AOM-4540P-R |
| 668-1292-ND | AOM-4544P-NF-R |
| 668-1484-ND | AOM-4542P-R |
| 668-1290-ND | AOM-4540L-R |
| 668-1293-ND | AOM-4546L-R |
| 668-1198-ND | AOM-6545P-R |
| 102-6543-ND | CMEJ-0733-36-L050 |
| 668-1168-ND | POM-3046P-R |
| 668-1172-ND | POM-3546P-R |
| 102-4086-ND | CMC-3015-44T |
| 668-1163-ND | POM-2746L-R |
| 433-1107-ND | EM-4015-BC |
| 668-1310-ND | POM-2744P-C33-R |
| 433-1189-ND | EM-6027N |
| 102-5624-ND | CMC-6013-38L100 |
| 433-EM-6027LR-45-ND | EM-6027LR-45 |
| 668-1491-ND | AOM-6738L-LW100-R |
| 668-1673-ND | PNM-3546L-C3310-R |
| 668-1389-ND | POM-2245L-C10-R |
| 102-4476-ND | CMC-4015-130T |
| 433-EM-6027LRNW-ND | EM-6027LRNW |
| 668-1642-ND | POM-5246L-R |
| 458-1539-ND | PMO-6027P-40KDQ |
| 668-1675-ND | PNM-5054L-C3310-R |
| 102-4093-ND | CMC-6018-38P |
| 668-POW-1527L-C3310-AMP-R-ND | POW-1527L-C3310-AMP-R |
| 668-1170-ND | POM-3542P-R |
| 668-1680-ND | AUM-5247L-C3310-R |
| 2223-CMC-4013-2-SMT-TR-ND,2223-CMC-4013-2-SMT-TRCT-ND,2223-CMC-4013-2-SMT-TRDKR-ND | CMC-4013-2-SMT-TR |
| 102-4088-ND | CMC-4015-40P |
| 102-4087-ND | CMC-4015-25T |
| 668-1157-ND | POM-2738P-C33-R |
| 668-1156-ND | POM-2738L-R |
| 102-5635-ND | CMC-9745-37T2 |
| 668-1540-ND | AOW-4544L-C3310-B-R |
| 668-TOW-1538L-LW100-R-ND | TOW-1538L-LW100-R |
| 668-1414-ND | POM-1345P-C3310-R |
| 668-1423-ND | POW-2742L-C3310-B-R |
| 668-1422-ND | POW-2242L-C3310-B-R |
| 668-1313-ND | POW-1644L-B-R |
| 668-1498-ND | TOM-1545L-LW100-R |
| 668-1600-ND | ROM-2235P-HD-R |
| 2104-MO064202-4-ND | MO064202-4 |
| 102-6534-ND | CMEJ-4618-42-L177 |
| 2104-MO094001-2-ND | MO094001-2 |
| 2104-MO044202-2-ND | MO044202-2 |
| 458-1534-ND | PMO-4015PN-42KDQ |
| 668-1396-ND | AOM-6746L-R |
| 2104-MO044002-1TR-ND,2104-MO044002-1CT-ND,2104-MO044002-1DKR-ND | MO044002-1 |
| 433-1232-ND | EM-3015 |
| 2104-MN094701-1-ND | MN094701-1 |
| 668-1169-ND | POM-3542L-R |
| 2104-MN095401-1-ND | MN095401-1 |
| 433-1187-ND | EM-4015N |
| 102-5626-ND | CMC-6022-37L100 |
| 2104-MU064602-2-ND | MU064602-2 |
| 668-1674-ND | PNM-5050L-C3310-R |
| 668-1493-ND | POM-2244L-C33-LW100-R |
| 102-5625-ND | CMC-6018-44L100 |
| 102-5632-ND | CMC-6050-40L100 |
| 2104-MU064602-1-ND | MU064602-1 |
| 102-4638-ND | CMC-4012-40P |
| 2151-RMIC-110-5-6015-NS1-ND | RMIC-110-5-6015-NS1 |
| 2151-RMIC-110-10-6022-NS1-ND | RMIC-110-10-6022-NS1 |
| 2104-MW062502-2-ND | MW062502-2 |
| 2104-MW063002-2-ND | MW063002-2 |
| 2151-RMIC-110-5-6027-NS1-ND | RMIC-110-5-6027-NS1 |
| 2151-RMIC-110-5-4015-NS2-ND | RMIC-110-5-4015-NS2 |
| 2223-CMR-4015-44-SP-ND | CMR-4015-44-SP |
| 2151-RMIC-110-5-3015-NS1-ND | RMIC-110-5-3015-NS1 |
| 2151-RMIC-110-5-4015-NS3-ND | RMIC-110-5-4015-NS3 |
| 668-1171-ND | POM-3546L-R |
| 2223-CMC-4015-40L170-ND | CMC-4015-40L170 |
| PUM-5250L-C3310-LWC50-R-ND | PUM-5250L-C3310-LWC50-R |
| FG-23329-P142-ND | FG-23329-P142 |
| TO38-30886B21-ND | TO38-30886-B21 |
| FG38-31011S16-ND | FG38-31011-S16 |
| 423-VEK-H-30108-000-ND | VEK-H-30108-000 |
| 3949-OWMO-4013SA-42-RC101TR-ND,3949-OWMO-4013SA-42-RC101CT-ND,3949-OWMO-4013SA-42-RC101DKR-ND | OWMO-4013SA-42-RC101 |
| 2266-CMC-6018-38T-ND,102-4094-ND | CMC-6018-38T |
| 3949-OWMO-9745TA-32-CC101-ND | OWMO-9745TA-32-CC101 |
| 3949-OWMO-6027TA-34-ANC114-ND | OWMO-6027TA-34-ANC114 |
| 2377-MEU-95PD-01-713-C1033-ND | MEU-95PD-01-713-C1033 |
| 3949-OWMO-4015TA-39-ANC114-ND | OWMO-4015TA-39-ANC114 |
| 102-4100-ND | CMC-6036-40T |
| 4626-TM141047-ND | TM141047 |
| 4626-TM141036-ND | TM141036 |
| 102-4101-ND | CMC-6050-40T |
| 102-1730-ND | CMR-5054TB-A |
| 4086-UB1465-ND | UB1465 |
| 4086-UB99452-373J-L01C01-00-0-ND | UB99452-373J-L01C01-00-0 |
| 2266-CMC-6015-42P-ND,102-4092-ND | CMC-6015-42P |
| 4626-TM141059-ND | TM141059 |
| 4086-UB1662-ND | UB1662 |
| 3949-OWMU-1465TA-34-CC101-ND | OWMU-1465TA-34-CC101 |
| 2266-CMC-9745-37L100-ND,102-5633-ND | CMC-9745-37L100 |
| 2266-CMC-6036-40L100-ND,102-5631-ND | CMC-6036-40L100 |
| 2266-CMC-9745-L100-ND,102-4643-ND | CMC-9745-L100 |
| 4086-UB2564-ND | UB2564 |
| 2895-BCM4013OSBC-42-ND | BCM4013OSBC-42 |
| 2895-HBO0603B-52/1338TR-ND | HBO0603B-52/1338 |
| 2895-BCM4013OLFC-42-JST-ZHR-2-ND | BCM4013OLFC-42-JST-ZHR-2 |
| 2895-HBO0302C-58/1248-ND | HBO0302C-58/1248 |
| 2895-BCM9750ULF-47J50-ND | BCM9750ULF-47J50 |
| 423-TO-30047-D60-ND | TO-30047-D60 |
| 2377-MEO-96PD-04-583-ND | MEO-96PD-04-583 |
| 4086-UB40152-423G-XSLCY2-IH-0-ND | UB40152-423G-XSLCY2-IH-0 |
| 4086-NB6027E-403S-L01RAB-00-0-ND | NB6027E-403S-L01RAB-00-0 |
| 2377-MEO-627PN-02-643REV.1-ND | MEO-627PN-02-643 REV.1 |
| 4086-UB60505-352X-L01CAY-00-0-ND | UB60505-352X-L01CAY-00-0 |
| 4086-UB60279-353G-WUVC01-NG-0-ND | UB60279-353G-WUVC01-NG-0 |
| 4086-UB1463-ND | UB1463 |
| 4086-UB6018D-442S-YATRAC-00-0-ND | UB6018D-442S-YATRAC-00-0 |
| 4086-UB9750A-373G-L01C01-00-0-ND | UB9750A-373G-L01C01-00-0 |
| 4086-UB1465-2-ND | UB1465-2 |
| 4086-UB1606-ND | UB1606 |
| 4333-BG-MIC-U1-ND | BG-MIC-U1 |
| FG-23329-C05-ND | FG-23329-C05 |
| 102-6533-ND | CMEJ-4618-42-L120 |
| 102-6544-ND | CMEJ-0629-36-L050 |
| 102-1729-ND | CMP-5247TF-K |
| 668-DUM-4537L-HD-R-ND | DUM-4537L-HD-R |
| 668-TOM-1537L-HD-LW100-B-R-ND | TOM-1537L-HD-LW100-B-R |
| 423-1120-ND | EK-23027-C36 |
| 423-1289-ND | EM-24446-C36 |
| 423-1010-ND | NR-23160-000 |
| TM-23546-C36-ND | TM-23546-C36 |
| FG-23742-C05-ND | FG-23742-C05 |
| 2104-MO093803-1-ND | MO093803-1 |
| 102-6550-ND | CMEJ-0706-42-P |
| 102-6546-ND | CMEJ-0733-42-L050 |
| 2104-MO064402-7-ND | MO064402-7 |
| 433-EM-9767P-44-ND | EM-9767P-44 |
| 433-EM-6022PR-38-ND | EM-6022PR-38 |
| 2104-MW043602-1-ND | MW043602-1 |
| 668-PNM-2751P-R-ND | PNM-2751P-R |
| 458-1538-ND | PMO-6022SN-42UQ |
| 458-PMOF-6050PA-36KDQ-ND | PMOF-6050PA-36KDQ |
| 668-1417-ND | AOM-4542L-R |
| 102-4095-ND | CMC-6022-37T |
| 2104-MW043002-1-ND | MW043002-1 |
| 668-1327-ND | TOM-3050L-R |
| 668-1166-ND | POM-3042P-R |
| 433-EM-4015LRW-40-ND | EM-4015LRW-40 |
| 433-1191-ND | EM-9745UN |
| 668-1149-ND | POM-2242P-C33-R |
| 668-TOW-1538P-C3310-R-ND | TOW-1538P-C3310-R |
| 668-TOW-1530P-R-ND | TOW-1530P-R |
| 2104-MO095804-1-ND | MO095804-1 |
| 2104-MO063602-1-ND | MO063602-1 |
| 433-EM-9750P-ND | EM-9750P |
| 2104-MO044202-3-ND | MO044202-3 |
| 458-1548-ND | PMOF-9767NS-40DQ |
| 433-EM-6022L-38-ND | EM-6022L-38 |
| 102-6538-ND | CMEJ-4618-38-L046 |
| 433-EM-9767P-ND | EM-9767P |
| 433-1096-ND | EM-4530 |
| 433-EM-4015PR-38-ND | EM-4015PR-38 |
| 433-EM-6022STR-ND,433-EM-6022SCT-ND,433-EM-6022SDKR-ND | EM-6022S |
| 433-1101-ND | EM-6027 |
| 668-1167-ND | POM-3046L-R |
| 668-1160-ND | POM-2742P-2-R |
| 668-1159-ND | POM-2742L-2-R |
| 433-1190-ND | EM-6050N |
| 668-1678-ND | POM-5038L-C3310-R |
| 458-1540-ND | PMOF-6027NSN-36KDQ |
| 458-1541-ND | PMOF-6027WN-44KDQ |
| 668-1661-ND | PUM-3046L-C3310-R |
| 668-1595-ND | DUM-4546L-C3310-R |
| 668-1500-ND | AOW-4542P-B-R |
| 668-1494-ND | POM-2246L-C33-LW100-R |
| 668-1681-ND | TOM-1242L-NF-C3310-R |
| 2151-RMIC-110-10-6027-NS1-ND | RMIC-110-10-6027-NS1 |
| 2151-RMIC-104-10-4015-NS1-ND | RMIC-104-10-4015-NS1 |
| 2151-RMIC-115-10-4013-NS1-ND | RMIC-115-10-4013-NS1 |
| 2151-RMIC-110-10-9750-NS1-ND | RMIC-110-10-9750-NS1 |
| 2104-MW043602-2-ND | MW043602-2 |
| 2104-MW044202-2-ND | MW044202-2 |
| 2104-MW064202-2-ND | MW064202-2 |
| 2104-MW063602-2-ND | MW063602-2 |
| 2104-MW043002-2-ND | MW043002-2 |
| 668-1323-ND | POM-2244P-2-R |
| EK-23027-P35-ND | EK-23027-P35 |
| 423-WP-23501-000-ND | WP-23501-000 |
| 2377-MEO-96PD-01-603-ND | MEO-96PD-01-603 |
| 2377-MEO-94PN-01-643-ND | MEO-94PN-01-643 |
| 2326-REM54F60ASSY-NL-ND | REM54F60ASSY-NL |
| 3949-OWMO-6027TA-34-RC101-ND | OWMO-6027TA-34-RC101 |
| 2377-MEO-94PN-01-603-ND | MEO-94PN-01-603 |
| 4626-TM141032-ND | TM141032 |
| 2266-CMC-4015-40T-ND,102-4089-ND | CMC-4015-40T |
| 4626-TM141062-ND | TM141062 |
| 4626-TM141061-ND | TM141061 |
| 4626-TM141064-ND | TM141064 |
| 4626-TM141042-ND | TM141042 |
| 102-4091-ND | CMC-6013-38T |
| 4626-TM141045-ND | TM141045 |
| 4626-TM141049-ND | TM141049 |
| 4626-TM141030-ND | TM141030 |
| 668-1165-ND | POM-3042L-R |
| 4626-TM141050-ND | TM141050 |
| 4626-TM141066-ND | TM141066 |
| 4626-TM141065-ND | TM141065 |
| 4626-TM141067-ND | TM141067 |
| 4626-TM141051-ND | TM141051 |
| 4626-TM141029-ND | TM141029 |
| 4626-TM141054-ND | TM141054 |
| 4626-TM141053-ND | TM141053 |
| 4626-TM141058-ND | TM141058 |
| 4626-TM141055-ND | TM141055 |
| 2895-HBO0403D-57/1335TR-ND | HBO0403D-57/1335 |
| 2895-HBO0603H-50/1340-ND | HBO0603H-50/1340 |
| 2895-HBO0803A-48/1341-ND | HBO0803A-48/1341 |
| 2895-HBO0303C-60TR-ND | HBO0303C-60 |
| 2895-HBO1003D-46/1342-ND | HBO1003D-46/1342 |
| 423-EA-21842-G31-ND | EA-21842-G31 |
| 4626-TM141041-ND | TM141041 |
| 4626-TM141037-ND | TM141037 |
| 4626-TM141044-ND | TM141044 |
| 4626-TM141060-ND | TM141060 |
| 4626-TM141028-ND | TM141028 |
| 4626-TM141057-ND | TM141057 |
| 2673-MEO4013MH-443RCTR-ND | MEO4013MH-443RC |
| 2673-MEO6027S363C1033HTR-ND | MEO6027S363C1033H |
| 2673-MEO6022S423C1033TR-ND | MEO6022S423C1033 |
| 4626-TM141063-ND | TM141063 |
| 4626-TM141056-ND | TM141056 |
| 4626-TM141052-ND | TM141052 |
| 668-1183-ND | TOM-1545L-R |
| 668-1394-ND | AOM-4540P-NF-R |
| 433-EM-4015LR-40-3-ND | EM-4015LR-40-3 |
| 668-1390-ND | POM-2245L-C33-R |
| 668-1151-ND | POM-2246L-C33-R |
| 433-1092-ND | EM-4530-C |
| 668-1187-ND | TOM-3046L-R |
| 668-1421-ND | POM-1644P-NF-R |
| 668-AOM-5024P-HD-MB-R-ND | AOM-5024P-HD-MB-R |
| 423-BJ-21590-000-ND | BJ-21590-000 |
| 668-AUM-4537L-HD-R-ND | AUM-4537L-HD-R |
| 668-POM-2739L-HD3-LW100-R-ND | POM-2739L-HD3-LW100-R |
| FBEM30342000-ND | FB-EM-30342-000 |
| 423-FBFO23225-ND | FB-FO-23225-000 |
| FB-EM30343000-ND | FB-EM-30343-000 |
| TOW-3050P-B-R-ND | TOW-3050P-B-R |
| FBDW30293000-ND | FB-DW-30293-000 |
| FBBU34023000-ND | FB-BU-34023-000 |
| FB-EI31552000-ND | FB-EI-31552-000 |
| 4333-BG-OMNITALK-ND | BG-OMNITALK |
| 4333-BG-OMNITALK-PRO-ND | BG-OMNITALK-PRO |
| 668-AOM-5035L-HD3-LW100-R-ND | AOM-5035L-HD3-LW100-R |
| FB-BW30335000-ND | FB-BW-30335-000 |
| 668-POM-2739L-HD3-R-ND | POM-2739L-HD3-R |
| BJ-28471-000-ND | BJ-28471-000 |
| 423-FB-FO-25383-000-ND | FB-FO-25383-000 |
| FB-EI30026000-ND | FB-EI-30026-000 |
| FB-DR30366000-ND | FB-DR-30366-000 |
| 423-WP-25993-D63-ND | WP-25993-D63 |
| 423-DFG-30445-000-ND | DFG-30445-000 |
| 668-AOM-5035L-HD3-R-ND | AOM-5035L-HD3-R |
| 668-AOW-6540L-R-ND | AOW-6540L-R |
| ZC5330-ND | ZC5330 |
| TO-24611-D60-ND | TO-24611-D60 |
| TO-30078-000-ND | TO-30078-000 |
| TO-30453-000-ND | TO-30453-000 |
| TO-30994-000-ND | TO-30994-000 |
| 423-WP-30113-PO3-ND | WP-30113-PO3 |
| BJ-21591-000-ND | BJ-21591-000 |
| TO-31021-B21-ND | TO-31021-B21 |
| BTO-26738-D48-ND | BTO-26738-D48 |
| BTO-26740-D55-ND | BTO-26740-D55 |
| NR-30572-000-ND | NR-30572-000 |
| BJ-23141-134-ND | BJ-23141-134 |
| FB-DO23847E46-ND | FB-DO-23847-E46 |
| TO-30078-P117-ND | TO-30078-P117 |
| TO-30187-S13-ND | TO-30187-S13 |
| TO-30790-S13-ND | TO-30790-S13 |
| 423-FB-DE-30290-000-ND | FB-DE-30290-000 |
| 423-FB-AE-30051-000-ND | FB-AE-30051-000 |
| 423-FB-AE-30209-000-ND | FB-AE-30209-000 |
| 423-FB-DE-30291-000-ND | FB-DE-30291-000 |
| 423-FB-DE-30292-000-ND | FB-DE-30292-000 |
| 423-VEK-F-30431-000-ND | VEK-F-30431-000 |
| TO-30453-P16-ND | TO-30453-P16 |
| FB-DW32122000-ND | FB-DW-32122-000 |
| FB-EI31878000-ND | FB-EI-31878-000 |
| BTO-26732-D55-ND | BTO-26732-D55 |
| 423-FBBU31193-ND | FB-BU-31193-000 |
| 458-PMOF-4527PN-47DQ-ND | PMOF-4527PN-47DQ |
3. Microelectromechanical System Microphone:
A Microelectromechanical Systems Microphone (MEMS Microphone) is a type of microphone sensor manufactured using microelectromechanical systems (MEMS) technology, known for its high integration, miniaturization, and low power consumption.
MEMS microphones operate on the same basic principle as condenser microphones but utilize microfabrication technology. Here’s a breakdown of the key components and functionality:
- MEMS Sensor: The core of a MEMS microphone is a tiny diaphragm, typically made of silicon, that vibrates in response to sound waves. This diaphragm forms one plate of a capacitor…
- ASIC: The MEMS sensor is paired with an ASIC (Application-Specific Integrated Circuit) that processes the electrical signal, handling amplification, analog-to-digital conversion, and signal processing.
- Sound Wave Detection: Sound waves cause the diaphragm to move, altering capacitance and generating an electrical signal, which is processed by the ASIC.
- Output: MEMS microphones output either analog or digital signals, with digital outputs being popular for direct integration with digital devices.
Advantages:
- Due to their microfabrication process, MEMS microphones exhibit consistent performance across units, reducing the variability seen in traditional microphones.
- MEMS microphones are incredibly small, allowing them to be integrated into compact devices
- MEMS microphones are energy-efficient, making them suitable for battery-powered devices.
- Many MEMS microphones feature a digital output, which reduces the need for additional analog-to-digital conversion in digital systems, streamlining the design process for engineers.
Limitation:
- MEMS microphones generally don’t match the sound quality of larger, traditional condenser microphones used in professional audio recording.
Applicable Part Numbers
| DigiKey Part Number | Manufacturer Part Number |
|---|---|
| 423-SPU0410LR5H-QBTR-ND,423-SPU0410LR5H-QBCT-ND,423-SPU0410LR5H-QBDKR-ND | SPU0410LR5H-QB |
| 423-SPH0641LM4H-1TR-ND,423-SPH0641LM4H-1CT-ND,423-SPH0641LM4H-1DKR-ND | SPH0641LM4H-1 |
| SPV0142LR5HTR-ND,SPV0142LR5HCT-ND,SPV0142LR5HDKR-ND | SPV0142LR5H-1 |
| 1428-MMICT390200012TR-ND,1428-MMICT390200012CT-ND,1428-MMICT390200012DKR-ND | MMICT390200012 |
| SPV21A0LR5HTR-ND,SPV21A0LR5HCT-ND,SPV21A0LR5HDKR-ND | SPV21A0LR5H-1V |
| 423-SPH0690LM4H-1TR-ND,SPH0690LM4HCT-ND,SPH0690LM4HDKR-ND | SPH0690LM4H-1 |
| SPH6611LR5HTR-ND,SPH6611LR5HCT-ND,SPH6611LR5HDKR-ND | SPH6611LR5H-1 |
| 668-AMM-3738-B-RTR-ND,668-AMM-3738-B-RCT-ND,668-AMM-3738-B-RDKR-ND | AMM-3738-B-R |
| IM69D130V01XTSA1TR-ND,IM69D130V01XTSA1CT-ND,IM69D130V01XTSA1DKR-ND | IM69D130V01XTSA1 |
| SPH0655LM4HTR-ND,SPH0655LM4HCT-ND,SPH0655LM4HDKR-ND | SPH0655LM4H-1-8 |
| 102-5081-2-ND,102-5081-1-ND,102-5081-6-ND | CMM-3729AT-42308-TR |
| 423-SPM0687LR5H-1TR-ND,423-SPM0687LR5H-1CT-ND,423-SPM0687LR5H-1DKR-ND | SPM0687LR5H-1 |
| 423-1425-2-ND,423-1425-1-ND,423-1425-6-ND | SPK0641HT4H-1 |
| 423-SPC18P8LM4H-1TR-ND,SPC18P8LM4HCT-ND,SPC18P8LM4HDKR-ND | SPC18P8LM4H-1 |
| 1428-1018-2-ND,1428-1018-1-ND,1428-1018-6-ND | INMP621ACEZ-R7 |
| 423-SPW0690LM4H-1TR-ND,423-SPW0690LM4H-1CT-ND,423-SPW0690LM4H-1DKR-ND | SPW0690LM4H-1 |
| 423-SPH0645LM4H-BTR-ND,423-SPH0645LM4H-BCT-ND,423-SPH0645LM4H-BDKR-ND | SPH0645LM4H-B |
| 448-IM69D128SV01XTMA1TR-ND,448-IM69D128SV01XTMA1CT-ND,448-IM69D128SV01XTMA1DKR-ND | IM69D128SV01XTMA1 |
| 448-IM69D127V11XTMA1TR-ND,448-IM69D127V11XTMA1CT-ND,448-IM69D127V11XTMA1DKR-ND | IM69D127V11XTMA1 |
| SPH0641LU4HTR-ND,SPH0641LU4HCT-ND,SPH0641LU4HDKR-ND | SPH0641LU4H-1 |
| 1428-1066-2-ND,1428-1066-1-ND,1428-1066-6-ND | ICS-43434 |
| 448-IM73D122V01XTMA1TR-ND,448-IM73D122V01XTMA1CT-ND,448-IM73D122V01XTMA1DKR-ND | IM73D122V01XTMA1 |
| 1428-MMICT5838-00-012TR-ND,1428-MMICT5838-00-012CT-ND,1428-MMICT5838-00-012DKR-ND | MMICT5838-00-012 |
| 668-DMM-4026-B-I2S-RTR-ND,668-DMM-4026-B-I2S-RCT-ND,668-DMM-4026-B-I2S-RDKR-ND | DMM-4026-B-I2S-R |
| 1428-1053-2-ND,1428-1053-1-ND,1428-1053-6-ND | ICS-43432 |
| 1428-1027-2-ND,1428-1027-1-ND,1428-1027-6-ND | ICS-40300 |
| 1428-1122-2-ND,1428-1122-1-ND,1428-1122-6-ND | ICS-52000 |
| 1428-1141-2-ND,1428-1141-1-ND,1428-1141-6-ND | ICS-40730 |
| 4719-S14OB381-057TR-ND,4719-S14OB381-057CT-ND,4719-S14OB381-057DKR-ND | S14OB381-057 |
| 4719-S15OB381-124TR-ND,4719-S15OB381-124CT-ND,4719-S15OB381-124DKR-ND | S15OB381-124 |
| SPH0141LM4HTR-ND,SPH0141LM4HCT-ND,SPH0141LM4HDKR-ND | SPH0141LM4H-1 |
| 102-5093-2-ND,102-5093-1-ND,102-5093-6-ND | CMM-2718AB-38308-TR |
| 102-5096-2-ND,102-5096-1-ND,102-5096-6-ND | CMM-2718AB-38108-TR |
| 102-5091-2-ND,102-5091-1-ND,102-5091-6-ND | CMM-2718AT-42108-TR |
| 423-SPV1142LR5H-1TR-ND,SPV1142LR5HCT-ND,SPV1142LR5HDKR-ND | SPV1142LR5H-1 |
| 423-SPH1878LR5H-1TR-ND,423-SPH1878LR5H-1CT-ND,423-SPH1878LR5H-1DKR-ND | SPH1878LR5H-1 |
| 1428-1064-2-ND,1428-1064-1-ND,1428-1064-6-ND | ICS-41350 |
| 423-SPK0838HT4H-1TR-ND,423-SPK0838HT4H-1CT-ND,423-SPK0838HT4H-1DKR-ND | SPK0838HT4H-1 |
| 423-SPV08A0LR5H-1TR-ND,423-SPV08A0LR5H-1CT-ND,423-SPV08A0LR5H-1DKR-ND | SPV08A0LR5H-1 |
| 423-SPV61A0LR5H-1TR-ND,423-SPV61A0LR5H-1CT-ND,423-SPV61A0LR5H-1DKR-ND | SPV61A0LR5H-1 |
| 423-SPH9855LM4H-CTR-ND,SPH9855LM4CCT-ND,SPH9855LM4CDKR-ND | SPH9855LM4H-C |
| 423-SPW0878LR5H-1TR-ND,SPW0878LR5HCT-ND,SPW0878LR5HDKR-ND | SPW0878LR5H-1 |
| SPH18C3LM4HTR-ND,SPH18C3LM4HCT-ND,SPH18C3LM4HDKR-ND | SPH18C3LM4H-1 |
| 1428-1155-2-ND,1428-1155-1-ND,1428-1155-6-ND | ICS-41351 |
| IM69D120V01XTSA1TR-ND,IM69D120V01XTSA1CT-ND,IM69D120V01XTSA1DKR-ND | IM69D120V01XTSA1 |
| 668-AMM-3742-T-RTR-ND,668-AMM-3742-T-RCT-ND,668-AMM-3742-T-RDKR-ND | AMM-3742-T-R |
| 423-SPH8878LR5H-1TR-ND,SPH8878LR5HCT-ND,SPH8878LR5HDKR-ND | SPH8878LR5H-1 |
| 423-SPH9855LM4H-1TR-ND,423-SPH9855LM4H-1CT-ND,423-SPH9855LM4H-1DKR-ND | SPH9855LM4H-1 |
| 2223-CMM-2718AT-38164W-TR-ND,2223-CMM-2718AT-38164W-TRCT-ND,2223-CMM-2718AT-38164W-TRDKR-ND | CMM-2718AT-38164W-TR |
| 668-AMM-2742-T-RTR-ND,668-AMM-2742-T-RCT-ND,668-AMM-2742-T-RDKR-ND | AMM-2742-T-R |
| 1428-1062-2-ND,1428-1062-1-ND,1428-1062-6-ND | ICS-40618 |
| 1428-1140-2-ND,1428-1140-1-ND,1428-1140-6-ND | ICS-40212 |
| 423-SPH1878LR5H-CTR-ND,423-SPH1878LR5H-CCT-ND,423-SPH1878LR5H-CDKR-ND | SPH1878LR5H-C |
| 497-17809-2-ND,497-17809-1-ND,497-17809-6-ND | MP34DT05TR-A |
| 423-1433-2-ND,423-1433-1-ND,423-1433-6-ND | SPG08P4HM4H-1 |
| 2223-CMM-2718AT-3817NC-TR-ND,2223-CMM-2718AT-3817NC-TRCT-ND,2223-CMM-2718AT-3817NC-TRDKR-ND | CMM-2718AT-3817NC-TR |
| 423-SPH11C3LR5H-1TR-ND,423-SPH11C3LR5H-1CT-ND,423-SPH11C3LR5H-1DKR-ND | SPH11C3LR5H-1 |
| 423-SPH18R1LM4H-1TR-ND,423-SPH18R1LM4H-1CT-ND,423-SPH18R1LM4H-1DKR-ND | SPH18R1LM4H-1 |
| 102-5102-2-ND,102-5102-1-ND,102-5102-6-ND | CMM-4737DT-26186-TR |
| 448-IM68A130V01XTMA1TR-ND,448-IM68A130V01XTMA1CT-ND,448-IM68A130V01XTMA1DKR-ND | IM68A130V01XTMA1 |
| 448-IM70D122V01XTMA1TR-ND,448-IM70D122V01XTMA1CT-ND,448-IM70D122V01XTMA1DKR-ND | IM70D122V01XTMA1 |
| 01A0LR5H17TR-ND,01A0LR5H17CT-ND,01A0LR5H17DKR-ND | SPK01A0LR5H-1-7 |
| 448-IM68A130AXTMA1TR-ND,448-IM68A130AXTMA1CT-ND,448-IM68A130AXTMA1DKR-ND | IM68A130AXTMA1 |
| 102-5099-2-ND,102-5099-1-ND,102-5099-6-ND | CMM-4030DT-26154-TR |
| 448-IM73A135V01XTSA1TR-ND,448-IM73A135V01XTSA1CT-ND,448-IM73A135V01XTSA1DKR-ND | IM73A135V01XTSA1 |
| 448-IM70A135V01XTMA1TR-ND,448-IM70A135V01XTMA1CT-ND,448-IM70A135V01XTMA1DKR-ND | IM70A135V01XTMA1 |
| 4719-S18OB381-046TR-ND,4719-S18OB381-046CT-ND,4719-S18OB381-046DKR-ND | S18OB381-046 |
| 448-IM67D130AXTSA2TR-ND,448-IM67D130AXTSA2CT-ND,448-IM67D130AXTSA2DKR-ND | IM67D130AXTSA2 |
| 1428-MMICT5837-00-012TR-ND,1428-MMICT5837-00-012CT-ND,1428-MMICT5837-00-012DKR-ND | MMICT5837-00-012 |
| 423-SPH0645LM4H-1-ND | SPH0645LM4H-1 |
| 497-18180-2-ND,497-18180-1-ND,497-18180-6-ND | MP34DT06JTR |
| 668-AMM-2742-T-WP-RTR-ND,668-AMM-2742-T-WP-RCT-ND | AMM-2742-T-WP-R |
| 497-IMP23ABSUTR-ND,497-IMP23ABSUCT-ND,497-IMP23ABSUDKR-ND | IMP23ABSUTR |
| 497-18183-2-ND,497-18183-1-ND,497-18183-6-ND | IMP34DT05TR |
| 1428-ICS-40638TR-ND,1428-ICS-40638CT-ND,1428-ICS-40638DKR-ND | ICS-40638 |
| 2223-CMM-3424DT-26165-TR-ND,2223-CMM-3424DT-26165-TRCT-ND,2223-CMM-3424DT-26165-TRDKR-ND | CMM-3424DT-26165-TR |
| 1428-1120-2-ND,1428-1120-1-ND,1428-1120-6-ND | ICS-40720 |
| 668-VMM-1627L-RTR-ND,668-VMM-1627L-RCT-ND,668-VMM-1627L-RDKR-ND | VMM-1627L-R |
| 102-5086-2-ND,102-5086-1-ND,102-5086-6-ND | CMM-2718AT-42316-TR |
| 102-5080-2-ND,102-5080-1-ND,102-5080-6-ND | CMM-3729AB-38308-TR |
| 102-5082-2-ND,102-5082-1-ND,102-5082-6-ND | CMM-3729AB-38108-TR |
| 102-5078-2-ND,102-5078-1-ND,102-5078-6-ND | CMM-3729AT-42316-TR |
| 2104-MM034402-1-ND | MM034402-1 |
| 102-5100-2-ND,102-5100-1-ND,102-5100-6-ND | CMM-4030DT-26354-TR |
| 668-AMM-2738-B-RTR-ND,668-AMM-2738-B-RCT-ND,668-AMM-2738-B-RDKR-ND | AMM-2738-B-R |
| 2223-CMM-3526AT-38165-TR-ND,2223-CMM-3526AT-38165-TRCT-ND,2223-CMM-3526AT-38165-TRDKR-ND | CMM-3526AT-38165-TR |
| 102-5094-2-ND,102-5094-1-ND,102-5094-6-ND | CMM-4030DB-26354-TR |
| 102-5095-2-ND,102-5095-1-ND,102-5095-6-ND | CMM-4030DB-26154-TR |
| 102-5101-2-ND,102-5101-1-ND,102-5101-6-ND | CMM-4737DT-26386-TR |
| 2104-MM024202-1TR-ND,2104-MM024202-1CT-ND,2104-MM024202-1DKR-ND | MM024202-1 |
| 2104-MM034202-8TR-ND,2104-MM034202-8CT-ND,2104-MM034202-8DKR-ND | MM034202-8 |
| 2104-MM033802-9TR-ND,2104-MM033802-9CT-ND,2104-MM033802-9DKR-ND | MM033802-9 |
| 2104-MM034202-7TR-ND,2104-MM034202-7CT-ND,2104-MM034202-7DKR-ND | MM034202-7 |
| 668-DMM-4326-T-RTR-ND,668-DMM-4326-T-RCT-ND,668-DMM-4326-T-RDKR-ND | DMM-4326-T-R |
| 448-IM67D120AXTSA1TR-ND,448-IM67D120AXTSA1CT-ND,448-IM67D120AXTSA1DKR-ND | IM67D120AXTSA1 |
| 2104-MM032602-1TR-ND,2104-MM032602-1CT-ND,2104-MM032602-1DKR-ND | MM032602-1 |
| 2104-MM042602-13TR-ND,2104-MM042602-13CT-ND,2104-MM042602-13DKR-ND | MM042602-13 |
| 668-AMM-3742-T-WP-RTR-ND,668-AMM-3742-T-WP-RCT-ND | AMM-3742-T-WP-R |
| 668-DMM-4326-T-WP-RTR-ND,668-DMM-4326-T-WP-RCT-ND | DMM-4326-T-WP-R |
| 423-IA611TR-ND,423-IA611CT-ND,423-IA611DKR-ND | IA611 |
| 102-5088-2-ND,102-5088-1-ND,102-5088-6-ND | CMM-2718AT-42116-TR |
| 2223-CMM-2718AT-42358-TR-ND,2223-CMM-2718AT-42358-TRCT-ND,2223-CMM-2718AT-42358-TRDKR-ND | CMM-2718AT-42358-TR |
| 2223-CMM-2718AB-3815NC-TR-ND,2223-CMM-2718AB-3815NC-TRCT-ND,2223-CMM-2718AB-3815NC-TRDKR-ND | CMM-2718AB-3815NC-TR |
| 2223-CMM-2718AB-38164-TR-ND,2223-CMM-2718AB-38164-TRCT-ND,2223-CMM-2718AB-38164-TRDKR-ND | CMM-2718AB-38164-TR |
| 2104-MM033802-4TR-ND,2104-MM033802-4CT-ND,2104-MM033802-4DKR-ND | MM033802-4 |
| 2104-MM033802-7TR-ND,2104-MM033802-7CT-ND,2104-MM033802-7DKR-ND | MM033802-7 |
| 2104-MM034202-13TR-ND,2104-MM034202-13CT-ND,2104-MM034202-13DKR-ND | MM034202-13 |
| 2104-MM034202-17TR-ND,2104-MM034202-17CT-ND,2104-MM034202-17DKR-ND | MM034202-17 |
| 2104-MM033802-5TR-ND,2104-MM033802-5CT-ND,2104-MM033802-5DKR-ND | MM033802-5 |
| 2104-MM034202-10TR-ND,2104-MM034202-10CT-ND,2104-MM034202-10DKR-ND | MM034202-10 |
| 2104-MM034202-14TR-ND,2104-MM034202-14CT-ND,2104-MM034202-14DKR-ND | MM034202-14 |
| 2104-MM034202-15TR-ND,2104-MM034202-15CT-ND,2104-MM034202-15DKR-ND | MM034202-15 |
| 2104-MM033802-8TR-ND,2104-MM033802-8CT-ND,2104-MM033802-8DKR-ND | MM033802-8 |
| 2104-MM034202-11TR-ND,2104-MM034202-11CT-ND,2104-MM034202-11DKR-ND | MM034202-11 |
| 2104-MM034202-9TR-ND,2104-MM034202-9CT-ND,2104-MM034202-9DKR-ND | MM034202-9 |
| 2104-MM033802-6TR-ND,2104-MM033802-6CT-ND,2104-MM033802-6DKR-ND | MM033802-6 |
| 2104-MM034202-12TR-ND,2104-MM034202-12CT-ND,2104-MM034202-12DKR-ND | MM034202-12 |
| 2104-MM023802-1TR-ND,2104-MM023802-1CT-ND,2104-MM023802-1DKR-ND | MM023802-1 |
| 2104-MM023802-2TR-ND,2104-MM023802-2CT-ND,2104-MM023802-2DKR-ND | MM023802-2 |
| 2104-MM023802-3TR-ND,2104-MM023802-3CT-ND,2104-MM023802-3DKR-ND | MM023802-3 |
| 2223-CMM-4030DT-26165-TR-ND,2223-CMM-4030DT-26165-TRCT-ND,2223-CMM-4030DT-26165-TRDKR-ND | CMM-4030DT-26165-TR |
| 2223-CMM-4030DT-26164-TR-ND,2223-CMM-4030DT-26164-TRCT-ND,2223-CMM-4030DT-26164-TRDKR-ND | CMM-4030DT-26164-TR |
| 2223-CMM-3526DB-37165-TR-ND,2223-CMM-3526DB-37165-TRCT-ND,2223-CMM-3526DB-37165-TRDKR-ND | CMM-3526DB-37165-TR |
| 2104-MM042602-15TR-ND,2104-MM042602-15CT-ND,2104-MM042602-15DKR-ND | MM042602-15 |
| 4719-S08OB381-045TR-ND,4719-S08OB381-045CT-ND,4719-S08OB381-045DKR-ND | S08OB381-045 |
| 4719-SD18OB371-077TR-ND,4719-SD18OB371-077CT-ND,4719-SD18OB371-077DKR-ND | SD18OB371-077 |
| 4719-S18OB381-028TR-ND,4719-S18OB381-028CT-ND,4719-S18OB381-028DKR-ND | S18OB381-028 |
| 4719-SD33OT261-003TR-ND,4719-SD33OT261-003CT-ND,4719-SD33OT261-003DKR-ND | SD33OT261-003 |
| 4719-SD18OB261-050TR-ND,4719-SD18OB261-050CT-ND,4719-SD18OB261-050DKR-ND | SD18OB261-050 |
| 2223-CMM-4030DT-261280-TR-ND,2223-CMM-4030DT-261280-TRCT-ND,2223-CMM-4030DT-261280-TRDKR-ND | CMM-4030DT-261280-TR |
| 2223-CMM-3526DB-26165-TR-ND,2223-CMM-3526DB-26165-TRCT-ND,2223-CMM-3526DB-26165-TRDKR-ND | CMM-3526DB-26165-TR |
| 2223-CMM-2718AB-38162W-TR-ND,2223-CMM-2718AB-38162W-TRCT-ND,2223-CMM-2718AB-38162W-TRDKR-ND | CMM-2718AB-38162W-TR |
| 2223-CMM-2718AB-38164W-TR-ND,2223-CMM-2718AB-38164W-TRCT-ND,2223-CMM-2718AB-38164W-TRDKR-ND | CMM-2718AB-38164W-TR |
| 448-IM64A130AXTMA1TR-ND,448-IM64A130AXTMA1CT-ND,448-IM64A130AXTMA1DKR-ND | IM64A130AXTMA1 |
| 2223-CMM-4030DT-261075-TR-ND,2223-CMM-4030DT-261075-TRCT-ND,2223-CMM-4030DT-261075-TRDKR-ND | CMM-4030DT-261075-TR |
| 448-IM64D121AXTMA1TR-ND,448-IM64D121AXTMA1CT-ND,448-IM64D121AXTMA1DKR-ND | IM64D121AXTMA1 |
| 448-IM64D130AXTMA1TR-ND,448-IM64D130AXTMA1CT-ND,448-IM64D130AXTMA1DKR-ND | IM64D130AXTMA1 |
| 448-IM69D130V11XTSA2TR-ND,448-IM69D130V11XTSA2CT-ND,448-IM69D130V11XTSA2DKR-ND | IM69D130V11XTSA2 |
| 668-AMM-3742-2-TTR-ND,668-AMM-3742-2-TCT-ND,668-AMM-3742-2-TDKR-ND | AMM-3742-2-T |
| 448-IM66D120AXTMA1TR-ND,448-IM66D120AXTMA1CT-ND,448-IM66D120AXTMA1DKR-ND | IM66D120AXTMA1 |
| 448-IM66D130AXTMA1TR-ND,448-IM66D130AXTMA1CT-ND,448-IM66D130AXTMA1DKR-ND | IM66D130AXTMA1 |
| 668-DMM-3526-4-BTR-ND,668-DMM-3526-4-BCT-ND,668-DMM-3526-4-BDKR-ND | DMM-3526-4-B |
| 668-AMM-2738-2-BTR-ND,668-AMM-2738-2-BCT-ND,668-AMM-2738-2-BDKR-ND | AMM-2738-2-B |
| 668-DMM-3526-2-BTR-ND,668-DMM-3526-2-BCT-ND,668-DMM-3526-2-BDKR-ND | DMM-3526-2-B |
| 668-AMM-3538-3-BTR-ND,668-AMM-3538-3-BCT-ND,668-AMM-3538-3-BDKR-ND | AMM-3538-3-B |
| 668-AMM-2738-3-BTR-ND,668-AMM-2738-3-BCT-ND,668-AMM-2738-3-BDKR-ND | AMM-2738-3-B |
| 668-DMM-3537-BTR-ND,668-DMM-3537-BCT-ND,668-DMM-3537-BDKR-ND | DMM-3537-B |
| 668-AMM-3538-2-BTR-ND,668-AMM-3538-2-BCT-ND,668-AMM-3538-2-BDKR-ND | AMM-3538-2-B |
| 668-DMM-3526-3-BTR-ND,668-DMM-3526-3-BCT-ND,668-DMM-3526-3-BDKR-ND | DMM-3526-3-B |
| 668-AMM-3538-BTR-ND,668-AMM-3538-BCT-ND,668-AMM-3538-BDKR-ND | AMM-3538-B |
| 668-AMM-4038-BTR-ND,668-AMM-4038-BCT-ND,668-AMM-4038-BDKR-ND | AMM-4038-B |
| 668-AMM-3738-TTR-ND,668-AMM-3738-TCT-ND,668-AMM-3738-TDKR-ND | AMM-3738-T |
| 668-AMM-3738-2-BTR-ND,668-AMM-3738-2-BCT-ND,668-AMM-3738-2-BDKR-ND | AMM-3738-2-B |
| 668-AUMM-3842TR-ND,668-AUMM-3842CT-ND,668-AUMM-3842DKR-ND | AUMM-3842 |
| 3949-OWMMOA-271811A-S421QA-ND | OWMMOA-271811A-S421QA |
| 3949-OWMMOA-271809A-S381FANC-BP-ND | OWMMOA-271809A-S381FANC-BP |
| 2603-CM02M-03S38-MA-5TR-ND,2603-CM02M-03S38-MA-5CT-ND,2603-CM02M-03S38-MA-5DKR-ND | CM02M-03S38-MA-5 |
| 3949-OWMMOD-403010A-S261F-ND | OWMMOD-403010A-S261F |
| 3949-OWMMOD-403010A-S261F-BP-ND | OWMMOD-403010A-S261F-BP |
| 5280-3SM121LZB1HATR-ND,5280-3SM121LZB1HACT-ND,5280-3SM121LZB1HADKR-ND | 3SM121LZB1HA |
| 3949-OWMMOA-332509A-S381I101-BP-ND | OWMMOA-332509A-S381I101-BP |
| 102-5084-2-ND,102-5084-1-ND,102-5084-6-ND | CMM-3526AB-38308-TR |
| 5280-3SM123E4T1VA-002-RTR-ND,5280-3SM123E4T1VA-002-RCT-ND,5280-3SM123E4T1VA-002-RDKR-ND | 3SM123E4T1VA-002-R |
| 3949-OWMMOD-352609A-S371I02-BP-ND | OWMMOD-352609A-S371I02-BP |
| 102-5079-2-ND,102-5079-1-ND,102-5079-6-ND | CMM-3729AB-38116-TR |
| 5280-3SM122KZT1VATR-ND,5280-3SM122KZT1VACT-ND,5280-3SM122KZT1VADKR-ND | 3SM122KZT1VA |
| 102-5077-2-ND,102-5077-1-ND,102-5077-6-ND | CMM-3722AT-42116-TR |
| 2156-ADMP404ACEZ-RL-ND | ADMP404ACEZ-RL |
| 2156-ADMP404ACEZ-RL7-ND | ADMP404ACEZ-RL7 |
| 5280-3SM122KZB1VD-002-RTR-ND,5280-3SM122KZB1VD-002-RCT-ND,5280-3SM122KZB1VD-002-RDKR-ND | 3SM122KZB1VD-002-R |
| 5280-3SM222KMT1KA-PTR-ND,5280-3SM222KMT1KA-PCT-ND,5280-3SM222KMT1KA-PDKR-ND | 3SM222KMT1KA-P |
| 5280-3SM121MZB1UATR-ND,5280-3SM121MZB1UACT-ND,5280-3SM121MZB1UADKR-ND | 3SM121MZB1UA |
| 497-MP23DB01HPTR-ND,497-MP23DB01HPCT-ND,497-MP23DB01HPDKR-ND | MP23DB01HPTR |
| 5280-3SM121MZT1UATR-ND,5280-3SM121MZT1UACT-ND,5280-3SM121MZT1UADKR-ND | 3SM121MZT1UA |
| 5280-3SM121PZB1MBTR-ND,5280-3SM121PZB1MBCT-ND,5280-3SM121PZB1MBDKR-ND | 3SM121PZB1MB |
| 3838-AT6577CT-ND | AT6577 |
| 2156-ADMP510ACEZ-RL7-ND | ADMP510ACEZ-RL7 |
| 448-IM72D128V01XTMA1TR-ND,448-IM72D128V01XTMA1CT-ND,448-IM72D128V01XTMA1DKR-ND | IM72D128V01XTMA1 |
| 102-5098-2-ND,102-5098-1-ND,102-5098-6-ND | CMM-3125AT-42316-TR |
| 102-5092-2-ND,102-5092-1-ND,102-5092-6-ND | CMM-2718AT-42308-TR |
| 102-5089-2-ND,102-5089-1-ND,102-5089-6-ND | CMM-2718AB-383161-TR |
| 102-5087-2-ND,102-5087-1-ND,102-5087-6-ND | CMM-2718AB-38316-TR |
| 2104-MN045302-1-ND | MN045302-1 |
| 5280-3SM222KMB1HA-PTR-ND,5280-3SM222KMB1HA-PCT-ND,5280-3SM222KMB1HA-PDKR-ND | 3SM222KMB1HA-P |
| 5280-3SM123C4T1QATR-ND,5280-3SM123C4T1QACT-ND,5280-3SM123C4T1QADKR-ND | 3SM123C4T1QA |
| 5280-3SM123C4T1VA-RTR-ND,5280-3SM123C4T1VA-RCT-ND,5280-3SM123C4T1VA-RDKR-ND | 3SM123C4T1VA-R |
| 5280-3SM123GZB1VE-RTR-ND,5280-3SM123GZB1VE-RCT-ND,5280-3SM123GZB1VE-RDKR-ND | 3SM123GZB1VE-R |
| 5280-3SM122HZB1VD-RTR-ND,5280-3SM122HZB1VD-RCT-ND,5280-3SM122HZB1VD-RDKR-ND | 3SM122HZB1VD-R |
| 3838-AT6856CT-ND | AT6856 |
| 2895-SMO04A-42/1316-ND | SMO04A-42/1316 |
| 2895-SMO04C-38/1316-ND | SMO04C-38/1316 |
| 2895-SMO05A-42/1316-ND | SMO05A-42/1316 |
| 2895-SDMO07D-36/1363-ND | SDMO07D-36/1363 |
| 2895-SMO08C-38/1317-ND | SMO08C-38/1317 |
| 2895-SMO07C-38/1348-ND | SMO07C-38/1348 |
| 497-18092-2-ND,497-18092-1-ND,497-18092-6-ND | MP23ABS1TR |
| 668-DMM-4026-B-RTR-ND,668-DMM-4026-B-RCT-ND,668-DMM-4026-B-RDKR-ND | DMM-4026-B-R |
| 668-DMM-3526-B-RTR-ND,668-DMM-3526-B-RCT-ND,668-DMM-3526-B-RDKR-ND | DMM-3526-B-R |
| 4719-SD28OB341-015TR-ND,4719-SD28OB341-015CT-ND,4719-SD28OB341-015DKR-ND | SD28OB341-015 |
| 1428-MMICT5848-00-012TR-ND,1428-MMICT5848-00-012CT-ND,1428-MMICT5848-00-012DKR-ND | MMICT5848-00-012 |
| 3949-OWMMOA-372911A-S38-BP-ND | OWMMOA-372911A-S38-BP |
| 2104-MM042602-4-ND | MM042602-4 |
| 285-ICS-40214TR-ND | ICS-40214 |
| 2104-MM042602-5-ND | MM042602-5 |
| 2104-MM042602-6-ND | MM042602-6 |
| 423-1416-2-ND,423-1416-1-ND,423-1416-6-ND | SPA2629LR5H-B |
| 1428-1034-2-ND,1428-1034-1-ND,1428-1034-6-ND | INMP621ACEZ-R0 |
| 423-TP-24620-000-ND | TP-24620-000 |
| MQM-32325-000-ND | MQM-32325-000 |
| 423-MM20-33366-000-ND | MM20-33366-000 |
| 423-MM20-33366-B116TR-ND | MM20-33366-B116 |
| 423-MM20-33639-000-ND | MM20-33639-000 |
| 423-MM20-33639-B116TR-ND | MM20-33639-B116 |
| MQM-32300-000-ND | MQM-32300-000 |
| MP34DB01-ND | MP34DB01 |
| MP34DT01-ND | MP34DT01 |
| MP33AB01-ND | MP33AB01 |
| MP33AB01H-ND | MP33AB01H |
| ADMP803JCEZ-RL-ND | ADMP803JCEZ-RL |
| MP23AB02TR-ND | MP23AB02TR |
| MP23AB01DMTR-ND | MP23AB01DMTR |
| MP23AB01DM-ND | MP23AB01DM |
| 2895-SDMO07C-26/1281-ND | SDMO07C-26/1281 |
| 423-SPM0208HE5-ND | SPM0208HE5 |
| 423-SPM0408LE5H-ND | SPM0408LE5H |
| 423-SPU0410LR5H-T-ND | SPU0410LR5H-T |
| 423-SPM0410LR5H-ND | SPM0410LR5H |
| 423-SPU0410LR5H-ND | SPU0410LR5H |
| 423-SPM0204HE5H-ND | SPM0204HE5H |
| 423-SPM0208HD5H-ND | SPM0208HD5H |
| 423-SPM0404LE5H-ND | SPM0404LE5H |
| 423-SPM0204HD5-ND | SPM0204HD5 |
| 423-SPM0405HE4H-ND | SPM0405HE4H |
| 423-SPM0408HE5H-ND | SPM0408HE5H |
| 423-SPM0404HE5H-ND | SPM0404HE5H |
| 423-SPM0208HD5-ND | SPM0208HD5 |
| 423-SPM0208LE5H-ND | SPM0208LE5H |
| 423-SPU0410LR5H-2-ND | SPU0410LR5H-2 |
| 423-SPM0205HD4H-ND | SPM0205HD4H |
| 423-SPU0409LE5H-ND | SPU0409LE5H |
| 423-SPM0405HD4H-ND | SPM0405HD4H |
| 423-SPU0410LR5H-PB-ND | SPU0410LR5H-PB |
| 423-SPM0205HD4-ND | SPM0205HD4 |
| 423-SPM0204LE5-ND | SPM0204LE5 |
4. Piezo Microphones:
Piezo microphones are a type of microphone that rely on piezoelectric materials to convert sound waves into electrical signals. These microphones are known for their durability, simplicity, and ability to capture sound from surfaces or vibrations.
Piezo microphones operate on the principle of piezoelectricity. Here’s a breakdown of their functionality:
- Piezoelectric Element: At the core of the microphone is a piezoelectric material, often a crystal or ceramic, that deforms when exposed to mechanical pressure, such as vibrations from sound waves.
- Vibration Detection: When sound waves or physical vibrations strike the piezoelectric element, it generates an electrical charge in response to the deformation caused by the mechanical stress.
- Signal Output: The generated electrical charge is then converted into an audio signal, which can be amplified or processed further for output.
Advantages:
- Piezo microphones are highly durable and can withstand rough handling, making them ideal for industrial and outdoor environments.
- Piezo microphones are simple in design, which makes them cost-effective and easy to integrate into various applications.
- These microphones excel at picking up vibrations directly from surfaces, making them useful for amplifying stringed instruments like guitars.
Limitations:
- Piezo microphones generally have a more limited frequency response compared to other microphone types.
- While they are durable, piezo microphones can sometimes be overly sensitive to physical impacts, which may result in unwanted noise.
Applications of Microphone sensors:
| Microphone Type | Applications |
|---|---|
| Electromagnetic (Dynamic Microphone) | - Live sound reinforcement |
| - Recording studios | |
| - Broadcasting | |
| - Public address systems | |
| Capacitive (Condenser Microphone) | - Studio recording |
| - Podcasting | |
| - Film and television production | |
| - Acoustic research | |
| MEMS-based Transduction (MEMS Microphone) | - Smartphones |
| - Wearable devices | |
| - Hearing aids | |
| - Consumer electronics | |
| - Automotive applications | |
| Piezoelectric (Piezo Microphone) | - Musical instruments |
| - Contact microphones | |
| - Industrial machinery | |
| - Medical equipment |
Considerations for choosing microphone sensors:
When selecting microphone sensors, key considerations include application requirements, environmental conditions, sensitivity, frequency response, and directionality.
Analyze the intended use, such as studio recording or communication systems, and the environment’s noise levels, temperature, and humidity.
Choose a microphone with appropriate sensitivity and frequency response for the sound intensity and detail needed.
Directionality matters, with omnidirectional microphones for capturing sound from all directions and cardioid microphones for focused forward sound.
Noise-cancelling capabilities, durability, power supply compatibility, and cost must also be considered.
Comprehensive evaluation ensures the microphone sensor meets performance and budget expectations, and testing validates its suitability for the application.
Conclusion:
Microphone sound sensors play a crucial role in converting acoustic energy into electrical signals, serving as the backbone of numerous applications, from communication devices to professional audio systems. The operation of these sensors varies based on the underlying technology, such as electromagnetic, capacitive, MEMS, or piezoelectric transduction. Each type offers distinct benefits and limitations, making the selection process highly dependent on the specific requirements of the application, environmental factors, and desired performance. By thoroughly evaluating these considerations, it is possible to select the most suitable microphone sensor that balances performance with cost-efficiency, ensuring optimal results.