NJU8721 查看數據表（PDF） - Japan Radio Corporation

零件编号

产品描述 (功能)

生产厂家

NJU8721

CLASS D HEADPHONE AMPLIFIER FOR DIGITAL AUDIO

Japan Radio Corporation  

! APPLICATION CIRCUIT

3.3V

10uF

Digital

Audio

Data

Mode

Control

0.1uF

20 VDD

11 VSS

12

13

14

15

MCK

BCK

LRCK

DIN

9

19

18

17

10

1

16

MODE

F0/DATA

F1/REQ

F2/SCK

RST

STBY

MUTE

2 TEST

NJU8721

•A915BY-101M is manufactured by TOKO, INC.

For further information, please refer to its technical papers.

220uF A915BY-101M

OUTR 4

100uH

220uF A915BY-101M

OUTL 7

100uH

Headphone

16Ω

VDDR 5

3

VSSR

6

VDDL

VSSL 8

2.2uF

2.2uF

2.2uF

Switching

100uF Regulator

Note 9) De-coupling capacitors must be connected between each power supply pin and GND pin.

Note 10) The power supply for VDDL and VDDR require fast driving response performance such as a switching

regulator for THD.

Note 11) The bigger capacitor value of AC-coupling capacitors for headphone outputs realize better frequency

response characteristics, especially low frequency area.

Note 12) 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.

[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.

- 13 -

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