NJU8711 查看數據表（PDF） - Japan Radio Corporation

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NJU8711

3V Operation Switching Driver for Class D Amplifier

Japan Radio Corporation  

NJU8711

! APPLICATION CIRCUIT

• Stereo OTL configuration

Audio Signal

Beep Signal

Output Control

Master Clock

7

IN1

9 IN2

4

BEEP

1

EN1

5 EN2

2 MCK

•A915BY-220M is manufactured by TOKO, INC.

For further information, please refer to its technical papers.

220uF A915BY-101M

OUT1 6

100uH

OUT2

220uF A915BY-101M

10

100uH

16Ω

Headphone

VDD

VSS

2.2uF 100uF

3

8

Switching

Regulator

• 1 channel BTL configuration

Audio Signal

Beep Signal

7

IN1

9 IN2

4

BEEP

Output Control

Master Clock

1

EN1

5 EN2

2 MCK

•A915BY-220M is manufactured by TOKO, INC.

For further information, please refer to its technical papers.

OUT1 6

A915BY-220M

22uH

OUT2 10

22uH

A915BY-220M

8Ω

Speaker

VDD

VSS

2.2uF 100uF

3

8

Switching

Regulator

Note 7) De-coupling capacitors must be connected between each power supply pin and GND pin.

Note 8) The power supply for VDD require fast driving response performance such as a switching regulator for

THD.

Note 9) The bigger capacitor value of AC-coupling capacitors for headphone outputs realize better frequency

response characteristics, especially low frequency area.

Note 10)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-

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