Single_chiyo_audio_amplifier_BTL_1_W_05_W_with_volume_control

Published:2009/7/23 23:56:00 Author:Jessie | From:SeekIC

This circuit makes use or the bridge-tied load (BTL) principle to achieve low-voltage operation without sacrifice of output power. The wide supply range (4.5 V to 18 V) makes the circuit suitable for a broad range of applications (battery-powered radios, telephone sets, etc.). The IC amplifier has a built-in dc volume control, with a log characteristic range of more than 80 dB.When the dc control voltage (pin 4) drops below 0.3 V, the amplifier is muted, so there are no switch-on/switch -off clicks. The TDA7052A provides an output of 1 W with a 6-V supply into an 8-Ω load, or 2-W output when the supply is raised to 12 V, into a 32-Ω load. The TDA7052AT output is 0.5 W with a 6-V supply, into a 16-Ω load. Basic amplifier circuit titles and descriptions



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