YSS952 datasheet(3/116 Pages) YAMAHA

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YSS952

6SS952A30

PRECAUTIONS AND INSTRUCTIONS FOR SAFETY

WARNING

Prohibited

Do not use the device under stresses beyond those listed in Absolute Maximum Ratings.

Such stresses may become causes of breakdown, damages, or deterioration, causing explosion

or ignition, and this may lead to fire or personal injury.

Prohibited

Do not mount the device reversely or improperly and also do not connect a supply voltage in

wrong polarity. Otherwise, this may cause current and/or power-consumption to exceed the

absolute maximum ratings, causing personal injury due to explosion or ignition as well as causing

breakdown, damages, or deterioration.

And, do not use the device again that has been improperly mounted and powered once.

Prohibited

Do not short between pins.

In particular, when different power supply pins, such as between high-voltage and low-voltage

pins, are shorted, smoke, fire, or explosion may take place.

Instructions

As to devices capable of generating sound from its speaker outputs, please design with safety of

your products and system in mind, such as the consequences of unusual speaker output due to a

malfunction or failure. A speaker dissipates heat in a voice-coil by air flow accompanying vibration

of a diaphragm. When a DC signal (several Hz or less) is input due to device failure, heat

dissipation characteristics degrade rapidly, thereby leading to voice-coil burnout, smoking or

ignition of the speaker even if it is used within the rated input value.

CAUTION

Prohibited

Do not use Yamaha products in close proximity to burning materials, combustible substances, or

inflammable materials, in order to prevent the spread of the fire caused by Yamaha products, and

to prevent the smoke or fire of Yamaha products due to peripheral components.

Instructions

Generally, semiconductor products may malfunction and break down due to aging, degradation,

etc. It is the responsibility of the designer to take actions such as safety design of products and

the entire system and also fail-safe design according to applications, so as not to cause property

damage and/or bodily injury due to malfunction and/or failure of semiconductor products.

Instructions

The built-in DSP may output the maximum amplitude waveform suddenly due to malfunction from

disturbances etc. and this may cause damage to headphones, external amplifiers, and human

body (the ear). Please pay attention to safety measures for device malfunction and failure both in

product and system design.

Instructions

As semiconductor devices are not nonflammable, overcurrent or failure may cause smoke or fire.

Therefore, products should be designed with safety in mind such as using overcurrent protection

circuits to control the amount of current during operation and to shut off on failure.

Instructions

Products should be designed with fail safe in mind in case of malfunction of the built-in protection

circuits. Note that the built-in protection circuits such as overcurrent protection circuit and

high-temperature protection circuit do not always protect the internal circuits. In some cases,

depending on usage or situations, such protection circuit may not work properly or the device

itself may break down before the protection circuit kicks in.

Instructions

Use a robust power supply.

The use of an unrobust power supply may lead to malfunctions of the protection circuit, causing

device breakdown, personal injury due to explosion, or smoke or fire.

Instructions

Product's housing should be designed with the considerations of short-circuiting between pins of

the mounted device due to foreign conductive substances (such as metal pins etc.). Moreover,

the housing should be designed with spatter prevention etc. due to explosion or burning.

Otherwise, the spattered substance may cause bodily injury.

Instructions

The device may be heated to a high temperature due to internal heat generation during

operation. Therefore, please take care not to touch an operating device directly.

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