STA321TR
Overview
Category: Integrated Circuit (IC)
Use: Audio Amplifier
Characteristics: - Small form factor - Low power consumption - High audio quality - Wide operating voltage range
Package: SOT-23
Essence: STA321TR is an integrated circuit audio amplifier designed for various audio applications.
Packaging/Quantity: Available in tape and reel packaging, with 3000 units per reel.
Specifications and Parameters
- Supply Voltage: 2.7V to 5.5V
- Output Power: 1W
- Total Harmonic Distortion: <0.1%
- Signal-to-Noise Ratio: >90dB
- Operating Temperature Range: -40°C to +85°C
Pin Configuration
The STA321TR has the following pin configuration:
1. VDD
2. GND
3. IN+
4. IN-
5. OUT
Functional Characteristics
- Low power consumption allows for extended battery life in portable devices.
- High audio quality ensures clear and accurate sound reproduction.
- Wide operating voltage range provides flexibility in different power supply scenarios.
Advantages and Disadvantages
Advantages: - Small form factor enables compact designs. - Low power consumption prolongs battery life. - High audio quality delivers excellent sound reproduction. - Wide operating voltage range offers versatility.
Disadvantages: - Limited output power may not be suitable for high-power audio applications. - SOT-23 package may require additional thermal management for higher power dissipation.
Applicable Range of Products
STA321TR is commonly used in the following products: - Portable audio players - Mobile phones - Tablets - Bluetooth speakers - Headphones
Working Principles
The STA321TR operates as a class-D audio amplifier, utilizing pulse-width modulation (PWM) to convert the input audio signal into a high-frequency square wave. This square wave is then filtered and amplified to produce the final audio output.
Detailed Application Field Plans
STA321TR can be used in various audio applications, including: - Portable audio devices - Consumer electronics - Automotive audio systems - Home theater systems
Detailed Alternative Models
Some alternative models to STA321TR include: - STA311B - STA325 - STA339BW - STA540 - STA508
5 Common Technical Questions and Answers
Q: What is the maximum output power of STA321TR? A: The maximum output power of STA321TR is 1W.
Q: Can STA321TR operate with a supply voltage below 2.7V? A: No, the minimum supply voltage for STA321TR is 2.7V.
Q: Is STA321TR suitable for automotive applications? A: Yes, STA321TR can be used in automotive audio systems.
Q: What is the operating temperature range of STA321TR? A: STA321TR can operate within a temperature range of -40°C to +85°C.
Q: Does STA321TR require external thermal management? A: Depending on the application and power dissipation, additional thermal management may be required for STA321TR, especially when operating at higher power levels.
This concludes the encyclopedia entry for STA321TR.
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