YDA144 Datasheet, PDF (12/26 Pages) YAMAHA CORPORATION – STEREO 2.1W Non-Clip DIGITAL AUDIO POWER AMPLIFIER

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çYDA144
■Cautions for Safety
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Please observe the following restrictions to use YDA144 safely.
・The snubber circuit should be laid out within 3mm from the IC on the component side.
・The schottky barrier diode should be laid out within 3mm from the IC.
・Place a bypass capacitor, which is connected between PVDD and GND, together with a schottky barrier diode.
And, when no schottky barrier diode is required, place it within 3mm from the IC.
・When a LC filter is used, consider the following.
With a system of which an input signal in excess of a resonance frequency of a LC filter could be input, be sure to place a
snubber circuit (insert 13Ω+330ns at the LC filter output) after the LC filter to prevent an over-current condition. The
purpose is to prevent an over-current from flowing because an impedance of the speaker increases at the resonance
frequency.
・With a system of which a voltage at an input pin might exceed a supply voltage of V_DDA/GND, use an external diode etc.
to assure that the voltage does not exceed the absolute maximum rating.
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