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MAX9737ETG/V+T
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MAX9737ETG/V+T

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Audio Amplifier
  • Characteristics: High Efficiency, Low Distortion
  • Package: 24-pin TQFN
  • Essence: Power Amplification
  • Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

  • Supply Voltage Range: 4.5V to 14V
  • Output Power: 2 x 20W into 8Ω at 10% THD+N
  • Efficiency: Up to 88%
  • Total Harmonic Distortion + Noise (THD+N): 0.03% at 1kHz, 1W into 8Ω
  • Signal-to-Noise Ratio (SNR): 100dB A-weighted
  • Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX9737ETG/V+T has a 24-pin TQFN package with the following pin configuration:

  1. INL-: Negative Input for Left Channel
  2. INL+: Positive Input for Left Channel
  3. GND: Ground
  4. BYP: Bypass Capacitor Connection
  5. VDD: Positive Power Supply
  6. PVDD: Power Supply for Power Stage
  7. OUTL: Output for Left Channel
  8. NC: No Connection
  9. NC: No Connection
  10. NC: No Connection
  11. NC: No Connection
  12. NC: No Connection
  13. NC: No Connection
  14. NC: No Connection
  15. NC: No Connection
  16. NC: No Connection
  17. NC: No Connection
  18. NC: No Connection
  19. NC: No Connection
  20. NC: No Connection
  21. NC: No Connection
  22. INR+: Positive Input for Right Channel
  23. INR-: Negative Input for Right Channel
  24. OUTR: Output for Right Channel

Functional Features

  • High Efficiency Class D Amplifier
  • Low Distortion and Noise
  • Short-Circuit and Thermal Protection
  • Integrated BTL (Bridge-Tied Load) Configuration
  • Wide Supply Voltage Range
  • Differential Inputs for Improved Noise Rejection

Advantages and Disadvantages

Advantages: - High efficiency results in less power dissipation and longer battery life. - Low distortion ensures high-quality audio reproduction. - Integrated protection features enhance reliability and prevent damage.

Disadvantages: - Limited output power compared to larger amplifiers. - Requires careful PCB layout and grounding to minimize noise.

Working Principles

The MAX9737ETG/V+T is a class D audio amplifier that utilizes pulse-width modulation (PWM) to amplify the input audio signal. It operates by rapidly switching the power supply voltage on and off, creating a square wave that approximates the original audio waveform. This square wave is then filtered to remove high-frequency components and provide a clean amplified audio signal.

Detailed Application Field Plans

The MAX9737ETG/V+T is suitable for various audio applications, including:

  1. Portable Bluetooth Speakers
  2. Home Theater Systems
  3. Car Audio Systems
  4. Multimedia Soundbars
  5. Gaming Consoles
  6. Musical Instruments

Detailed and Complete Alternative Models

  1. TPA3116D2: 50W Stereo Class D Audio Amplifier
  2. TAS5630B: 300W Mono Class D Audio Amplifier
  3. LM3886: 68W Hi-Fi Audio Amplifier
  4. STA540: 38W Quad Bridge-Tied Load (BTL) Audio Amplifier
  5. IRS2092S: 500W Digital Audio Amplifier

These alternative models offer different power outputs and features, allowing users to choose the most suitable amplifier for their specific requirements.

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Liệt kê 10 câu hỏi và câu trả lời thường gặp liên quan đến ứng dụng MAX9737ETG/V+T trong giải pháp kỹ thuật

  1. What is the maximum input voltage for MAX9737ETG/V+T?
    - The maximum input voltage for MAX9737ETG/V+T is 17V.

  2. What is the typical output power of MAX9737ETG/V+T?
    - The typical output power of MAX9737ETG/V+T is 3.2W into 4Ω at 10% THD+N.

  3. Can MAX9737ETG/V+T operate with a single supply voltage?
    - Yes, MAX9737ETG/V+T can operate with a single supply voltage ranging from 4.5V to 17V.

  4. What is the quiescent current consumption of MAX9737ETG/V+T?
    - The quiescent current consumption of MAX9737ETG/V+T is typically 4.5mA.

  5. Does MAX9737ETG/V+T have built-in thermal shutdown protection?
    - Yes, MAX9737ETG/V+T features built-in thermal shutdown protection.

  6. What is the recommended operating temperature range for MAX9737ETG/V+T?
    - The recommended operating temperature range for MAX9737ETG/V+T is -40°C to +85°C.

  7. Can MAX9737ETG/V+T be used in automotive applications?
    - Yes, MAX9737ETG/V+T is suitable for automotive applications.

  8. What is the typical efficiency of MAX9737ETG/V+T?
    - The typical efficiency of MAX9737ETG/V+T is 88% at 1W into 8Ω.

  9. Is MAX9737ETG/V+T suitable for portable audio devices?
    - Yes, MAX9737ETG/V+T is suitable for portable audio devices due to its low quiescent current and small footprint.

  10. Does MAX9737ETG/V+T require external compensation components?
    - No, MAX9737ETG/V+T does not require external compensation components, simplifying the design process.