Hi-Efficient 20W Mono Class-D Audio Amplifier
This is a Hi-Efficient 20W mono Class-D audio amplifier, designed to drive speakers as low as 4 ohms in a bridge-tied-load configuration. Due to the low power dissipation and high efficiency of up to 90%, the module doesn’t require a heatsink. The project is built using PAM8320 chip which features short circuit protection, thermal shutdown, over-voltage protection and under-voltage lock-out. Ferrite-Bead is provided on the output of the speaker connection to eliminate EMI. Connect SD to a high and MUTE to a low for normal operation.
Features
- Operates from 4.5V to 15V
- 20W into 4Ω BTL Load from 12V Supply
- Single-Ended Analog Input
- No Pop Noise for Start-up and Shut-down Sequences
- Output Power at 1% THD+N (1Khz) @ 15W Output
- Internal Oscillator (No External Components Required)
- Highly Efficient Class-D Operation Eliminates Need for Heat Sinks
- Thermal and Short-Circuit Protection with Auto Recovery
- Over Voltage Protection and Under Voltage Lock-out
- Screw Terminal for Speak and Power Connections
- On Board Trimmer Potentiometer for Volume Control
- On Board Jumpers for Shutdown and Mute Functions
- On Board Power LED
- Header Connector for Audio Input
- PCB Dimensions 39.53 x 33.97 mm
- 2 x 3 mm PCB Mounting Holes
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This is a Hi-Efficient 20W mono Class-D audio amplifier, designed to drive speakers as low as 4 ohms in a bridge-tied-load configuration. Due to the low power dissipation and high efficiency of up to 90%, the module doesn’t require a heatsink. The project is built using PAM8320 chip which features short circuit protection, thermal shutdown, over-voltage protection and under-voltage lock-out. Ferrite-Bead is provided on the output of the speaker connection to eliminate EMI. Connect SD to a high and MUTE to a low for normal operation.
Features
- Operates from 4.5V to 15V
- 20W into 4Ω BTL Load from 12V Supply
- Single-Ended Analog Input
- No Pop Noise for Start-up and Shut-down Sequences
- Output Power at 1% THD+N (1Khz) @ 15W Output
- Internal Oscillator (No External Components Required)
- Highly Efficient Class-D Operation Eliminates Need for Heat Sinks
- Thermal and Short-Circuit Protection with Auto Recovery
- Over Voltage Protection and Under Voltage Lock-out
- Screw Terminal for Speak and Power Connections
- On Board Trimmer Potentiometer for Volume Control
- On Board Jumpers for Shutdown and Mute Functions
- On Board Power LED
- Header Connector for Audio Input
- PCB Dimensions 39.53 x 33.97 mm
- 2 x 3 mm PCB Mounting Holes
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