PAM8403 class D dual channel power amplifier
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The PAM8403 is a low-power, high-efficiency Class D amplifier that provides dual-channel audio amplification. It delivers 3W per channel with a low Total Harmonic Distortion (THD), making it ideal for portable and compact audio applications. The amplifier operates with high efficiency, ensuring minimal heat generation and extended battery life for portable devices. Its small size and low power consumption make it a popular choice for DIY audio projects, battery-powered speakers, and other audio applications where space and power efficiency are crucial.
Key Features:
- Class D audio amplifier
- Dual channel (stereo) output
- Output power: 3W per channel
- High efficiency: Up to 90%
- Low Total Harmonic Distortion (THD)
- Built-in thermal protection
- Built-in short circuit protection
- Pop noise suppression
- Operating voltage: 2.5V to 5.5V
- Compact size for easy integration
- Output Power: 3W x 2 (at 4Ω, 5V, THD+N = 10%)
- Efficiency: Up to 90%
- Operating Voltage: 2.5V to 5.5V
- Signal-to-Noise Ratio (SNR): 90dB
- Total Harmonic Distortion (THD): 0.1% (1W, 4Ω, 1kHz)
- Input Impedance: 15kΩ
- Portable speakers
- DIY audio projects
- Battery-powered audio devices
- MP3 and media players
- Mobile phones and tablets
- Small home audio systems
Technical Specifications:
- Logic Family: CMOS
- Number of Channels: 3
- Switch Configuration: Single-Pole Double-Throw (SPDT)
- Supply Voltage Range: 3V to 15V
- “ON” Resistance (R_ON): 125Ω typical at V_DD = 10V
- “OFF” Leakage Current (I_OFF): ±100pA typical at V_DD = 10V
- Control Input Voltage (V_IH): 0.7 V_DD min, 0.3 V_DD max
- Maximum Operating Frequency: 40 MHz at V_DD = 10V
Applications:
- Signal routing and switching
- Analog and digital multiplexing
- Audio and video signal processing
- Data acquisition systems
- Test equipment