Mar 17, 2023
Headphone Amplifier Evaluation Board
Linear Integrated Systems headphone amplifier evaluation board is a complete, low-power stereo audio amplifier for high-fidelity line-level output and headphone applications. It consists of Linear Integrated Systems JFETs along with a number of other parts mounted on a circuit board.
Linear Integrated Systems headphone amplifier evaluation board includes the following features:
Stereo, single ended input and single ended output
400 mW output power into 100Ω
Wide frequency response (10Hz?200kHz; ?1dB)
Voltage gain 5 (14dB)
Low distortion (THD+N is less than 1% at 10Hz?20kHz at 5Vrms into 100Ω and less than 0.1% from 10 Hz to 20 kHz at 1Vrms into 100Ω load)
Short circuit protection
Pop reduction (slow start) circuit
Defeatable cross feed circuit
Volume control
Overvoltage and reverse polarity power protection
Audio input and output connections: left and right RCA phono jack inputs, ¼” stereo phone jack output
External 9V–16V supply input
External power supply connector: power jack, inside diameter 2.1mm, outside diameter 5.5mm