Specifications
| Attribute | Value |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| ProductStatus | Obsolete |
| Type | Class AB |
| OutputType | 1-Channel (Mono) |
| Voltage-Supply | 2.7V ~ 3.6V |
| Features | Microphone, Shutdown, Thermal Protection |
| MountingType | Surface Mount |
| OperatingTemperature | -40°C ~ 85°C (TA) |
| SupplierDevicePackage | SC-70-6 |
Overview
Description
The MAX9812LEXT+T is a low-noise, low-power, microphone preamplifier with automatic gain control (AGC), designed for portable audio applications. It typically targets devices like smartphones, tablets, and other portable electronics where high-quality audio capture is required. The MAX9812L integrates an internal microphone bias and provides a high degree of amplification while maintaining a low noise floor, which helps in capturing clear audio signals even in noisy environments.
The device operates on a single supply voltage and has an integrated AGC that helps in adjusting the gain automatically based on the input signal level, ensuring consistent output without distortion over varying input volumes. The compact package makes it suitable for space-constrained applications. Additionally, its low power consumption is ideal for battery-operated devices, extending their operational time without frequent recharges. Overall, the MAX9812LEXT+T offers an efficient solution for enhancing microphone performance in compact and portable electronic devices.
The device operates on a single supply voltage and has an integrated AGC that helps in adjusting the gain automatically based on the input signal level, ensuring consistent output without distortion over varying input volumes. The compact package makes it suitable for space-constrained applications. Additionally, its low power consumption is ideal for battery-operated devices, extending their operational time without frequent recharges. Overall, the MAX9812LEXT+T offers an efficient solution for enhancing microphone performance in compact and portable electronic devices.
Equivalent
The MAX9812LEXT+T is a low-noise microphone preamplifier. Equivalent products include:
1. NXP's SA58672
2. Texas Instruments' LMV1012 series
3. Analog Devices' SSM2167
4. On Semiconductor's NCS2088
These equivalents may vary in specific features like gain, noise level, or power consumption, so it's important to review the datasheets to ensure compatibility with your application.
1. NXP's SA58672
2. Texas Instruments' LMV1012 series
3. Analog Devices' SSM2167
4. On Semiconductor's NCS2088
These equivalents may vary in specific features like gain, noise level, or power consumption, so it's important to review the datasheets to ensure compatibility with your application.
Features
The MAX9812LEXT+T is a low-cost, high-performance microphone amplifier designed for portable devices. Its key features include:
1. Low Supply Voltage: It operates from a supply voltage as low as 2.7V, making it ideal for battery-powered applications.
2. Low Quiescent Current: The amplifier consumes minimal power during operation, extending battery life.
3. High Gain: It offers a fixed gain of 20dB, suitable for amplifying weak microphone signals.
4. Rail-to-Rail Output: This feature maximizes the dynamic range, ensuring better audio performance.
5. Low Total Harmonic Distortion: The device ensures high-quality audio with minimal distortion.
6. Integrated Biasing: It includes a built-in microphone bias voltage, simplifying design and reducing external components.
7. Compact Package: Available in a small, surface-mount package, it is ideal for space-constrained applications.
8. Temperature Range: Operates effectively over a wide temperature range, enhancing reliability in various environments.
These features make the MAX9812LEXT+T suitable for a variety of audio applications in portable electronics, such as smartphones, tablets, and other handheld devices.
1. Low Supply Voltage: It operates from a supply voltage as low as 2.7V, making it ideal for battery-powered applications.
2. Low Quiescent Current: The amplifier consumes minimal power during operation, extending battery life.
3. High Gain: It offers a fixed gain of 20dB, suitable for amplifying weak microphone signals.
4. Rail-to-Rail Output: This feature maximizes the dynamic range, ensuring better audio performance.
5. Low Total Harmonic Distortion: The device ensures high-quality audio with minimal distortion.
6. Integrated Biasing: It includes a built-in microphone bias voltage, simplifying design and reducing external components.
7. Compact Package: Available in a small, surface-mount package, it is ideal for space-constrained applications.
8. Temperature Range: Operates effectively over a wide temperature range, enhancing reliability in various environments.
These features make the MAX9812LEXT+T suitable for a variety of audio applications in portable electronics, such as smartphones, tablets, and other handheld devices.
Pinout
The MAX9812LEXT+T is a low-noise, microphone amplifier IC designed for use in portable audio applications. It typically comes in a small package, such as a UTDFN (Ultra Thin Dual Flat No-Lead) package, with a pin count of 6.
The key functions of the MAX9812 include:
1. Microphone Biasing: Provides biasing for electret microphones.
2. Amplification: Amplifies the microphone signal with low noise, enhancing the audio quality.
3. Shutdown Mode: A feature to reduce power consumption when the device is not in use.
4. Low Supply Current: Optimized for battery-powered devices to enhance efficiency.
With its compact size and efficient design, it is ideal for smartphones, tablets, and other portable audio devices. Always refer to the manufacturer's datasheet for detailed pin configuration and specific application instructions.
The key functions of the MAX9812 include:
1. Microphone Biasing: Provides biasing for electret microphones.
2. Amplification: Amplifies the microphone signal with low noise, enhancing the audio quality.
3. Shutdown Mode: A feature to reduce power consumption when the device is not in use.
4. Low Supply Current: Optimized for battery-powered devices to enhance efficiency.
With its compact size and efficient design, it is ideal for smartphones, tablets, and other portable audio devices. Always refer to the manufacturer's datasheet for detailed pin configuration and specific application instructions.
Manufacturer
The MAX9812LEXT+T is manufactured by Maxim Integrated, which is now part of Analog Devices, Inc. Maxim Integrated is known for designing and producing analog and mixed-signal integrated circuits. The company specializes in creating semiconductor components that are utilized in a variety of sectors, including automotive, communications, consumer, and industrial industries. Their products often include power management ICs, sensor interface devices, and amplifiers, among others. Maxim Integrated's focus is on providing innovative solutions that help enhance the performance and efficiency of electronic devices.
Application
The MAX9812LEXT+T is a low-noise microphone amplifier commonly used in various audio applications. Key application areas include:
1. Smartphones and Tablets: Enhances audio quality for voice calls and recordings.
2. Wearable Devices: Used in smartwatches and fitness trackers for voice command and communication features.
3. Voice-Activated Systems: Integrated into smart home devices for improved voice recognition.
4. Hearing Aids: Provides clear audio amplification in compact form factors.
5. Portable Audio Recorders: Improves sound capture quality in field recordings.
6. Consumer Electronics: Used in cameras and voice recorders for noise reduction.
Its low-noise performance and small size make it ideal for compact, battery-powered devices requiring high-quality audio input.
1. Smartphones and Tablets: Enhances audio quality for voice calls and recordings.
2. Wearable Devices: Used in smartwatches and fitness trackers for voice command and communication features.
3. Voice-Activated Systems: Integrated into smart home devices for improved voice recognition.
4. Hearing Aids: Provides clear audio amplification in compact form factors.
5. Portable Audio Recorders: Improves sound capture quality in field recordings.
6. Consumer Electronics: Used in cameras and voice recorders for noise reduction.
Its low-noise performance and small size make it ideal for compact, battery-powered devices requiring high-quality audio input.
Package
The MAX9812LEXT+T is an analog MEMS microphone preamplifier in a compact package. Specifically, it comes in a 6-pin thin small outline package (TSOP) that is surface-mountable, making it suitable for compact electronic devices requiring high-performance audio input handling.
