AT73C221J

Product Overview

• Category: Integrated Circuit (IC)
• Use: Audio Amplifier
• Characteristics: High-performance, low-power consumption
• Package: 16-pin SOIC (Small Outline Integrated Circuit)
• Essence: Amplifies audio signals with high fidelity and efficiency
• Packaging/Quantity: Available in reels of 250 units

Specifications

• Supply Voltage: 3.3V
• Output Power: 2 Watts
• Total Harmonic Distortion: <0.1%
• Signal-to-Noise Ratio: >90dB
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The AT73C221J has a total of 16 pins, each serving a specific function:

1. VDD: Positive power supply
2. GND: Ground reference
3. IN+: Non-inverting input for audio signal
4. IN-: Inverting input for audio signal
5. BIAS: Bias voltage input
6. BYPASS: Bypass capacitor connection
7. MUTE: Mute control input
8. SHUTDOWN: Shutdown control input
9. OUT: Amplified audio output
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

Functional Features

• High-quality audio amplification with minimal distortion
• Low power consumption for energy-efficient operation
• Built-in mute and shutdown control for easy integration into audio systems
• Stable performance across a wide temperature range
• Compact package size for space-constrained applications

Advantages and Disadvantages

Advantages: - High-performance audio amplification - Low power consumption - Compact package size - Wide operating temperature range

Disadvantages: - Limited output power (2 Watts) - No built-in protection features against overvoltage or short circuits

Working Principles

The AT73C221J is designed to amplify audio signals with high fidelity and efficiency. It operates by receiving an audio input signal through the IN+ and IN- pins, which are then amplified and delivered through the OUT pin. The BIAS pin provides the necessary bias voltage for proper amplification. The MUTE and SHUTDOWN pins allow for control over the amplifier's operation, enabling muting or complete shutdown when required.

Detailed Application Field Plans

The AT73C221J is commonly used in various audio applications, including:

1. Portable speakers
2. Headphone amplifiers
3. Car audio systems
4. Home theater systems
5. Audio mixers

Its compact size, low power consumption, and high-quality audio amplification make it suitable for a wide range of audio devices.

Detailed and Complete Alternative Models

1. AT73C222J: Similar to AT73C221J but with higher output power (5 Watts)
2. AT73C220J: Lower-power version of AT73C221J with reduced output power (1 Watt)
3. AT73C223J: Enhanced version of AT73C221J with built-in protection features against overvoltage and short circuits

These alternative models offer different specifications and features to cater to specific application requirements.

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