NJU8714 데이터 시트보기 (PDF) - Japan Radio Corporation

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NJU8714

STEREO BTL OUTPUTS SWITCHING DRIVER FOR Class D AMPLIFIER

Japan Radio Corporation  

NJU8714

APPLICATION CIRCUIT

-Load Impedance: 32Ω

MCK(1)

HALTB(3)

STBYB(18)

SEL(19)

DIN1(4)

DIN2(17)

VDD

10uF 2.2u

VDD(20)

VSS(2)

-Load Impedance: 8Ω

MCK(1)

HALTB(3)

STBYB(18)

SEL(19)

DIN1(4)

DIN2(17)

VDD

10uF 2.2u

VDD(20)

VSS(2)

OUT1(7)

100uH

OUT1X(9)

OUT2(14)

100uH

100uH

OUT2X(12)

100uH

VG(16)

VDDO1(10)

2.2uF 100uF

0.22uF

0.22uF

0.22uF

0.22uF

VSSO(8)

VDDO2(11)

2.2uF 100uF 2.2uF 10uF

VSSO(13)

32Ω

Speaker

32Ω

Speaker

VG

VDDO

OUT1(7)

22uH

OUT1X(9)

OUT2(14)

22uH

22uH

OUT2X(12)

22uH

VG(16)

VDDO1(10)

2.2uF 100uF

1.0uF

1.0uF

1.0uF

1.0uF

VSSO(8)

VDDO2(11)

2.2uF 100uF 2.2uF 10uF

VSSO(13)

8Ω

Speaker

8Ω

Speaker

VG

VDDO

Note 3) De-coupling capacitors must be connected between each power supply pin and GND pin.

Note 4) The power supply for VDDO requires fast driving response performance such as a switching regulator

for T.H.D..

Note 5) 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.

-6-

Ver.2004-05-21

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