MAX9761ETI+ - English Editing Encyclopedia Entry

Product Overview

Category

The MAX9761ETI+ belongs to the category of integrated audio amplifiers.

Use

It is primarily used for audio amplification in various electronic devices such as smartphones, tablets, laptops, and portable media players.

Characteristics

• High-quality audio amplification
• Compact size
• Low power consumption
• Wide input voltage range
• Thermal and short-circuit protection

Package

The MAX9761ETI+ is available in a small-sized package, typically a 28-pin TQFN (Thin Quad Flat No-Lead) package.

Essence

The essence of the MAX9761ETI+ lies in its ability to provide efficient and high-fidelity audio amplification in a compact form factor.

Packaging/Quantity

The MAX9761ETI+ is usually packaged in reels or tubes, with a typical quantity of 250 units per reel/tube.

Specifications

• Supply Voltage Range: 2.7V to 5.5V
• Output Power: Up to 3W per channel
• Total Harmonic Distortion + Noise (THD+N): <0.1%
• Signal-to-Noise Ratio (SNR): >90dB
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX9761ETI+ has a total of 28 pins, each serving a specific function. The pin configuration is as follows:

1. VDD - Power supply input
2. GND - Ground reference
3. SD - Shutdown control input
4. INL - Left channel audio input
5. INR - Right channel audio input
6. AGND - Analog ground reference
7. BYP - Bypass capacitor connection
8. OUTL - Left channel audio output
9. OUTR - Right channel audio output
10. VDDP - Power supply input for internal circuitry
11. PGND - Power ground reference
12. BSTL - Left channel bootstrap capacitor connection
13. BSTR - Right channel bootstrap capacitor connection
14. FB - Feedback pin for gain control
15. MUTE - Mute control input
16. GAIN - Gain selection input
17. MODE - Mode selection input 18-28. NC - No connection

Functional Features

1. High-Quality Audio Amplification: The MAX9761ETI+ provides excellent audio amplification with low distortion and high signal-to-noise ratio.
2. Compact Size: Its small form factor allows for easy integration into space-constrained electronic devices.
3. Low Power Consumption: The amplifier operates efficiently, minimizing power consumption and extending battery life in portable devices.
4. Thermal and Short-Circuit Protection: The MAX9761ETI+ incorporates built-in protection mechanisms to prevent damage from overheating or short-circuits.

Advantages and Disadvantages

Advantages

• High-quality audio amplification
• Compact size for easy integration
• Low power consumption
• Built-in thermal and short-circuit protection

Disadvantages

• Limited output power compared to higher wattage amplifiers
• May require additional external components for optimal performance

Working Principles

The MAX9761ETI+ utilizes a Class D amplifier architecture to achieve efficient audio amplification. It converts the incoming analog audio signals into a high-frequency pulse-width modulated (PWM) signal. This PWM signal is then amplified by the power stage and filtered to produce the final amplified audio output.

Detailed Application Field Plans

The MAX9761ETI+ finds applications in various electronic devices where audio amplification is required. Some potential application fields include: - Smartphones and tablets - Laptops and desktop computers - Portable media players - Bluetooth speakers - Gaming consoles

Detailed and Complete Alternative Models

1. MAX9760ETI+: Similar to the MAX9761ETI+, but with a lower output power rating.
2. MAX9762ETI+: Similar to the MAX9761ETI+, but with a higher output power rating.
3. TPA3116D2: An alternative audio amplifier with similar features and performance.

(Note: This list is not exhaustive, and there may be other alternative models available in the market.)

In conclusion, the MAX9761ETI+ is a compact and efficient audio amplifier that provides high-quality audio amplification for various electronic devices. Its small size, low power consumption, and built-in protection mechanisms make it an ideal choice for applications where space and power efficiency are crucial.