MAX9814 Microphone Amplifier Module
$1.68
MAX9814 microphone amplifier module MIC microphone sound amplification
| Dimensions | 20.8 × 13.8 × 7.5 mm |
|---|---|
| Brand |
easyelecmodule |
9877 in stock
Product Introduction
The MAX9814 microphone amplifier module is an audio amplification module specifically designed for electret condenser microphones. It amplifies weak microphone signals to sufficient levels for subsequent circuit processing. Featuring low noise, high gain, and high bandwidth, this module delivers clear, high-quality audio signals. Additionally, the MAX9814 offers high power supply rejection ratio and excellent stability, making it suitable for various audio applications such as voice recognition, audio recording, and communication equipment.
MAX9814 Functional Parameter Table
| Specification | Details |
|---|---|
| MAX9814 | |
| Supply Voltage | 2.7V-5.5V |
| Output Voltage | 2V with a 1.25V bias |
| Low Total Harmonic Distortion | 0.04% |
| Adjustable Automatic Gain | 40dB/50dB/60dB |
| Frequency Response | 20Hz-20KHz |
| Operating Temperature Range | Maximum: 85°C; Minimum: -40°C |
| Product Dimensions | 26mm*15mm |
MAX9814 DATASHEET
Three Gain Modes of the MAX9814:
Pins | dB | |
Gain1 | Disconnected | 60 |
Gain2 | VCC | 50 |
Gain3 | GND | 40 |
MAX9814 pins
GND: Ground terminal, used to connect the module’s negative terminal or ground potential
Vdd: Connect to power supply positive terminal
Gain: Tri-state amplifier gain control pin (GAIN=ADD: gain set to 40dB; GAIN=GND: gain set to 50dB; GAIN=floating: no compression, gain set to 60dB)
Out: Audio signal output terminal, providing amplified audio signals. This signal can be fed into subsequent audio processing circuits, such as analog-to-digital converters (ADC) or audio power amplifiers, for further processing or amplification.
AR: Three-state activation-to-release ratio selection (controls the activation time to release time ratio of the AGC circuit)
AR=GND: Activation time to release time ratio: 1:500
AR=vpp: Activation time to release time ratio: 1:2000
AR=floating: Activation time to release time ratio: 1:4000
Shipping Cost
We only ship to the United States. Shipping costs are calculated based on the total order amount.
Shipping Method And Delivery Time
All orders will be processed and shipped within 72 hours of placing the order (excluding weekends and holidays). They will ship from Shenzhen, China, primarily via 4PX logistics. Depending on the destination and logistics conditions, other carriers such as DHL, FedEx, UPS, USPS, etc., may also handle the delivery. Estimated shipping time is 7-12 business days, with actual delivery occurring in 10-17 business days, depending on logistics conditions.
Payment:
We accept Visa, Master card, Maestro, American Express, JCB, Dinner's Club, Discover, Paypal, Apple Pay, Google Pay .
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