NJU8789 datasheet(6/6 Pages) NJRC

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NJU8789

APPLICATION CIRCUIT

IN(2)

Signal

220µH

1µF

Control

Logic Power

OUTN(7)

OUTP(9)

STBYb(5)

VDDO(8)

Output Power

VDD(1)

0.1µF

10µF

TEST(4)

10µF

VSS(6or10)

8Ω

Speaker

Note 4) De-coupling capacitors must be connected between each power supply terminal and GND terminal.

Note 5) The power supply for VDDO requires fast driving response performance such as a switching regulator

for T.H.D.

Note 6) The above circuit shows only application example and does not guarantee the any electrical

characteristics. Therefore, please consider and check the circuit carefully to fit your application.

Note 7) VDD and VDDO must be applied with conbecting to VSS in STBYb must be connected to VSS.

Note 8) STBYb must be connected to VSS when applying voltage to VDD and VDDO.

Note 9) It is necessary to connect the Coil(Lo) to OUTN or OUTP terminal and Speaker for low power

consumption of the NJU8789.

Note 10)(1) to (10) indicates pin numbers.

[CAUTION]

The specifications on this databook are only

given for information , without any guarantee

as regards either mistakes or omissions. The

application circuits in this databook are

described only to show representative usages

of the product and not intended for the

guarantee or permission of any right including

the industrial rights.

- 6 -

Ver.2009-01-21

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