Champ Audio Amplifier Kit with Pre Amplifier (01/13)

Assembly Required

The Champion Audio Amplifier Kit with Pre-Amplifier Refer: Silicon Chip Magazine January 2013 An amplifier and pre-amplifier combination for all those general-purpose audio projects. It uses the AN7511 audio IC to deliver 2W music power into 8 ohms from a 9 to 12V supply. Features low distortion, two inputs (mixed 1:1), over-temperature protection (auto-limiting), Mute and standby control. Pre-amplifier is also suitable for microphones and electric guitars, and can be separated from the amplifier for individual use. Kit supplied with silk-screened PCB, heatsink and PCB mount components.

Features:

• Operating voltage range: 4 - 13.5VDC
• Music power: 3W @ 9 - 12V
• Frequency Response: -2.5dB @ 20Hz, -0.2dB @ 20kHz
• Gain: 34dB for Amplifier, up to 58dB with pre-amplifier
• Input Sensitivity for Amplifier only: 52mV RMS @ 5V, 125mV RMS @ 9 - 12V
• Input Sensitivity for Amplifier & Pre-amplifier: 2mV RMS @ 5V, 5mV RMS @ 9 - 12V
• Quiescent current: 2mA (Pre-amplifier) + 30-60mA (Amplifier)
• Standby current: 2mA (Pre-amplifier) + 1-10uA (Amplifier)

Product Specifications

• Kit Form : Short Form (circuit only)
• Difficulty : Simple
• Estimated Construction Time : 60.0min
• Tools required : Soldering Iron
• Application Field : Audio Amplifier with Pre-Amplifier
• Additional optional items : 10kohm potentiometer
• PCB Width : 41.0mm
• PCB Length : 101.0mm
• Audio Device : Amplifier
• Signal Input Level : 52.0mV
• Output power : 3.0W
• Audio distortion : 0.25%
• Audio frequency range : 20.0Hz, 20.0kHz
• Signal to noise ratio : 65.0dB
• Audio power supply : 3W
• Audio gain : 34.0dB

• Length : 20 cm
• Width : 7 cm
• Height : 3 cm