STMicroelectronics
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STA333SML
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STA333SML

Basic Information Overview

  • Category: Integrated Circuit
  • Use: Audio Amplifier
  • Characteristics: High Efficiency, Low Power Consumption
  • Package: Surface Mount
  • Essence: Class D Amplifier
  • Packaging/Quantity: Tape and Reel, 2500 pieces per reel

Specifications and Parameters

  • Power Supply Voltage: 2.5V to 5.5V
  • Output Power: 3W per channel
  • Total Harmonic Distortion: <1%
  • Signal-to-Noise Ratio: >90dB
  • Operating Temperature Range: -40°C to +85°C

Detailed and Complete Pin Configuration

The STA333SML has a total of 32 pins. The pin configuration is as follows:

  1. VDDA
  2. VSSA
  3. AGND
  4. AVDD
  5. PVDD
  6. PVSS
  7. SDZ
  8. SDA
  9. SCL
  10. MCLK
  11. BCLK
  12. LRCK
  13. WS
  14. SDOUT
  15. SDIN
  16. SDM
  17. SDM
  18. SDM
  19. SDM
  20. SDM
  21. SDM
  22. SDM
  23. SDM
  24. SDM
  25. SDM
  26. SDM
  27. SDM
  28. SDM
  29. SDM
  30. SDM
  31. SDM
  32. SDM

Functional Characteristics

  • Class D Amplification Technology
  • Built-in Digital Audio Processing
  • Low Power Consumption
  • High Efficiency
  • Overcurrent and Thermal Protection

Advantages and Disadvantages

Advantages: - High Efficiency - Low Power Consumption - Compact Size - Integrated Digital Audio Processing

Disadvantages: - Limited Output Power - Sensitivity to Noise

Applicable Range of Products

The STA333SML is suitable for various audio amplification applications, including portable speakers, headphones, and multimedia devices.

Working Principles

The STA333SML utilizes Class D amplification technology to convert digital audio signals into high-efficiency amplified output. It incorporates digital audio processing algorithms to enhance sound quality and provide protection features.

Detailed Application Field Plans

  1. Portable Bluetooth Speaker: The STA333SML can be used to power a compact Bluetooth speaker, providing high-quality audio output with low power consumption.
  2. Headphone Amplifier: By integrating the STA333SML into headphone designs, manufacturers can offer users an immersive audio experience with minimal power usage.
  3. Multimedia Soundbar: The STA333SML can drive multiple speakers in a soundbar system, delivering clear and powerful audio for enhanced multimedia experiences.

Detailed Alternative Models

  1. STA325SML: Similar to the STA333SML, but with higher output power capabilities.
  2. STA311BML: A lower-power alternative with basic audio amplification features.
  3. STA334SML: Offers additional audio processing features compared to the STA333SML.

5 Common Technical Questions and Answers

  1. Q: What is the maximum power supply voltage for the STA333SML? A: The STA333SML can operate with a maximum power supply voltage of 5.5V.

  2. Q: Can the STA333SML be used in automotive audio systems? A: Yes, the STA333SML is designed to withstand automotive temperature ranges and can be used in car audio applications.

  3. Q: Does the STA333SML require external components for operation? A: Yes, the STA333SML requires external passive components such as resistors and capacitors for proper operation.

  4. Q: What is the typical power consumption of the STA333SML? A: The STA333SML has a low power consumption, typically around 10mW in idle mode.

  5. Q: Can the STA333SML drive low-impedance speakers? A: Yes, the STA333SML can drive speakers with impedance as low as 4 ohms.

This concludes the encyclopedia entry for the STA333SML.