Images are for reference only
MAX9814ETD+
+BOMMICROPHONE AMPLIFIER WITH AGC AN
-
ManufacturerAnalog Devices Inc./Maxim Integrated
-
Mfr. Part #MAX9814ETD+
-
Datasheet MAX9814ETD+ DataSheet
-
In Stock9273
365 Days Quality Guarantee
7*24 hours service quarantee
90-day after-sales guarantee
Genuine Product Guarantee
Specifications
| Attribute | Value |
| Part Status | Discontinued at Digi-Key |
| Type | Class AB |
| Output Type | 1-Channel (Mono) |
| Voltage - Supply | 2.7V ~ 5.5V |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Supplier Device Package | 14-TDFN (3x3) |
| Package / Case | 14-WFDFN Exposed Pad |
| Base Product Number | MAX9814 |
Overview
Description
The MAX9814ETD+ is a low-noise microphone preamplifier designed for audio applications. It features automatic gain control (AGC) to provide optimal signal levels, eliminating the need for manual adjustments. The device operates on a supply voltage of 2.7V to 5.5V, making it suitable for battery-operated devices. Its low noise figure (typically 30 dB) ensures high-quality audio capture with minimal distortion.
The MAX9814ETD+ includes features such as a built-in microphone bias, adjustable gain settings, and a shutdown mode to conserve power. The AGC can adapt to varying sound levels, making it ideal for applications in voice recognition, portable audio devices, and various consumer electronics.
The chip is packaged in a compact 8-pin MSOP, facilitating easy integration into small designs. Its combination of high performance, low power consumption, and versatile functionality makes the MAX9814ETD+ a popular choice for developers seeking to enhance audio quality in their products.
The MAX9814ETD+ includes features such as a built-in microphone bias, adjustable gain settings, and a shutdown mode to conserve power. The AGC can adapt to varying sound levels, making it ideal for applications in voice recognition, portable audio devices, and various consumer electronics.
The chip is packaged in a compact 8-pin MSOP, facilitating easy integration into small designs. Its combination of high performance, low power consumption, and versatile functionality makes the MAX9814ETD+ a popular choice for developers seeking to enhance audio quality in their products.
Equivalent
Equivalent products to the MAX9814ETD+ chip include the ADMP401 from Analog Devices, the LMV1032 from Texas Instruments, and the ICS-43434 from Invensense. These microphones and audio amplifiers provide similar functionality in terms of gain, noise performance, and application suitability for audio signal processing. Always check the datasheets for specific electrical characteristics and compatibility for your design requirements.
Features
The MAX9814ETD+ is a low-power, high-performance microphone preamplifier designed for audio applications. Key features include:
1. Automatic Gain Control (AGC): Provides consistent audio levels by adjusting gain, eliminating distortion from loud sounds.
2. Low Noise: Achieves a low equivalent input noise (EIN) for high-quality audio capture.
3. Wide Supply Voltage Range: Operates from 2.7V to 5.5V, making it suitable for various battery-powered applications.
4. Single-Ended Output: Delivers a single-ended output signal compatible with standard audio processing systems.
5. Adjustable Gain: Gain can be set via external resistors, allowing customization for specific applications.
6. Compact Package: Available in a small 8-pin μMAX package, ideal for space-constrained designs.
7. Low Quiescent Current: Efficient power consumption, making it suitable for portable devices.
8. Integrated Biasing: Simplifies design by providing internal biasing for the microphone.
These features make the MAX9814ETD+ an excellent choice for consumer electronics, portable audio devices, and voice recognition systems.
1. Automatic Gain Control (AGC): Provides consistent audio levels by adjusting gain, eliminating distortion from loud sounds.
2. Low Noise: Achieves a low equivalent input noise (EIN) for high-quality audio capture.
3. Wide Supply Voltage Range: Operates from 2.7V to 5.5V, making it suitable for various battery-powered applications.
4. Single-Ended Output: Delivers a single-ended output signal compatible with standard audio processing systems.
5. Adjustable Gain: Gain can be set via external resistors, allowing customization for specific applications.
6. Compact Package: Available in a small 8-pin μMAX package, ideal for space-constrained designs.
7. Low Quiescent Current: Efficient power consumption, making it suitable for portable devices.
8. Integrated Biasing: Simplifies design by providing internal biasing for the microphone.
These features make the MAX9814ETD+ an excellent choice for consumer electronics, portable audio devices, and voice recognition systems.
Pinout
The MAX9814ETD+ is a low-noise microphone amplifier with a total of 8 pins. The pin functions are as follows:
1. VDD: Power supply input (typically 2.7V to 5.5V).
2. OUT: Amplified audio output.
3. GND: Ground connection.
4. SCL: I2C clock input for serial communication.
5. SDA: I2C data input/output for serial communication.
6. SHDN: Shutdown control pin to enable or disable the device.
7. GAIN: Gain selection input pin to set the amplifier gain (typically adjustable).
8. CAP: Capacitor connection for AC coupling on the output.
The MAX9814ETD+ is designed for high-performance audio applications with features like automatic gain control (AGC) and low total harmonic distortion (THD).
1. VDD: Power supply input (typically 2.7V to 5.5V).
2. OUT: Amplified audio output.
3. GND: Ground connection.
4. SCL: I2C clock input for serial communication.
5. SDA: I2C data input/output for serial communication.
6. SHDN: Shutdown control pin to enable or disable the device.
7. GAIN: Gain selection input pin to set the amplifier gain (typically adjustable).
8. CAP: Capacitor connection for AC coupling on the output.
The MAX9814ETD+ is designed for high-performance audio applications with features like automatic gain control (AGC) and low total harmonic distortion (THD).
Manufacturer
The MAX9814ETD+ is manufactured by Analog Devices, Inc. (ADI), a global leader in high-performance analog, mixed-signal, and digital signal processing (DSP) integrated circuits. Founded in 1965 and headquartered in Norwood, Massachusetts, Analog Devices serves a wide range of industries, including communications, automotive, healthcare, and industrial automation.
ADI is known for its innovative solutions that enable the conversion, conditioning, and processing of real-world signals. The company specializes in technologies such as amplifiers, converters, sensors, and signal processing. The MAX9814ETD+ is a microphone amplifier designed to enhance audio quality in various applications, particularly in consumer electronics and voice recognition systems.
Through its commitment to research and development, Analog Devices continually advances the capabilities of analog technology, making it a crucial player in the semiconductor industry. The company's products are integral to enabling next-generation applications in fields ranging from Internet of Things (IoT) devices to sophisticated automotive systems.
ADI is known for its innovative solutions that enable the conversion, conditioning, and processing of real-world signals. The company specializes in technologies such as amplifiers, converters, sensors, and signal processing. The MAX9814ETD+ is a microphone amplifier designed to enhance audio quality in various applications, particularly in consumer electronics and voice recognition systems.
Through its commitment to research and development, Analog Devices continually advances the capabilities of analog technology, making it a crucial player in the semiconductor industry. The company's products are integral to enabling next-generation applications in fields ranging from Internet of Things (IoT) devices to sophisticated automotive systems.
Application
The MAX9814ETD+ is a low-noise microphone amplifier designed for various applications, including:
1. Consumer Electronics: Used in smartphones, tablets, and laptops for improved audio input quality.
2. Voice-Activated Systems: Enhances voice recognition in smart home devices and virtual assistants.
3. Hearing Aids: Provides clear sound amplification for better hearing assistance.
4. Portable Audio Recorders: Offers high-fidelity sound capture for recording applications.
5. Medical Devices: Utilized in devices requiring precise sound detection, such as stethoscopes.
Its features include automatic gain control, low power consumption, and high signal-to-noise ratio, making it suitable for these diverse applications.
1. Consumer Electronics: Used in smartphones, tablets, and laptops for improved audio input quality.
2. Voice-Activated Systems: Enhances voice recognition in smart home devices and virtual assistants.
3. Hearing Aids: Provides clear sound amplification for better hearing assistance.
4. Portable Audio Recorders: Offers high-fidelity sound capture for recording applications.
5. Medical Devices: Utilized in devices requiring precise sound detection, such as stethoscopes.
Its features include automatic gain control, low power consumption, and high signal-to-noise ratio, making it suitable for these diverse applications.
Package
The MAX9814ETD+ is available in a 14-pin TDFN (Thin Dual Flat No-lead) package. This compact package design facilitates surface mounting and is suitable for various electronic applications, particularly in audio amplification.
