XFPCB-0003 Class-AB Amplifier 20-30W LM1875 or TDA2030

Variation 1 LM1875

The LM1875 is a monolithic power amplifier offering very low distortion and high quality performance for consumer audio applications.

Specifications

• Load: 4Ω - 8Ω
• Output Power: 30W
• Supply Voltage 12V-36V(±18)

Features

• Low Distortion: 0.015%, 1 kHz, 20 W
• Wide Power Bandwidth: 70 kHz
• High Current Capability: 4A
• Protection for AC and DC Short Circuits to Ground

Variation 2 TDA2030

The TDA2030 is a monolithic integrated circuit in Pentawattpackage, intended for use as a low frequency class AB amplifier.

Specifications

• Load: 4Ω - 8Ω
• Supply Voltage ±18(36)
• Output Power: 20W

Features

• Low harmonic and cross-over distortion
• Short circuit protection system and thermal shut-down system

Use with: XFPCB-0004 Regulated Bipolar Power Supply

Included Files:

• xf3_amp - KiCAD Project Files
• xf3_amp_gerbers_masks - PCB Gerber, Drill, Silk/Solder Masks, Positive and Negative plots
• xf3-KiCad-Library - KiCAD Library Files; footprints, .step and .wrl component models, schema lib.

Schematic

Application

KiCad 3D

PCB

Prototype

Amplifier Using: XFPCB-0004 Regulated Bipolar Power Supply