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YDA144-QZ View Datasheet(PDF) - Yamaha Corporation

Part NameDescriptionManufacturer
YDA144-QZ STEREO 2.1W Non-Clip DIGITAL AUDIO POWER AMPLIFIER Yamaha
Yamaha Corporation Yamaha
YDA144-QZ Datasheet PDF : 26 Pages
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YDA144
Snubber Circuit and schottky barrier diode
It is necessary to connect the snubber circuit and schottky barrier diode with the output terminal to prevent IC destruction
by the output short-circuit when using it on the following conditions. The constant and the circuit are as follows.
Power supply voltage range
2.7VPVDD4.5V
4.5VPVDD5.25V
Load conditions
RL=8
Wiring inductance4µH
RL=4or 8
Snubber Circuit
Between OUT*+ and OUT*-
Rs=1.5, Cs=330pF
Between OUT*+ and OUT*-
Rs=1.5, Cs=680pF
Schottky barrier diode
Need less
Between OUT** and PVDD
Recommended parts
Schottky barrier diode: ROHM, RB161VA-20
Forward current surge peak = 5A or more, Average forward current = 1A or more,
Forward voltage (IF=1A) = 0.38V or less
Snubber circuit and Schottky barrier diode
9
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