MAX9720 查看數據表（PDF） - Maxim Integrated

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MAX9720

50mW, DirectDrive, Stereo Headphone Amplifier with SmartSense and Shutdown

Maxim Integrated 

50mW, DirectDrive, Stereo Headphone

Amplifier with SmartSense and Shutdown

Typical Application Circuit

1.8V TO 3.8V

C3

1µF

1

2

(D2) (C2)

R4

10kΩ

CIN

LEFT- 1µF

7

8

CHANNEL

9

(B2) (A2) AUDIO INPUT

(A3)

VDD MODE1 MODE2 ALERT

INL

MIXER

ATTENUATOR

AND

GAIN SETTING

3

(D1) C1P

UVLO

AND

SHUTDOWN

CONTROL

LOGIC

CONTROL

MAX9720

SGND

VDD

16

OUTL (D3)

VDD

R1

SVSS 100kΩ

15

HPS (C3)

C1

1µF

5

(B1) C1N

CHARGE

PUMP

SmartSense

AND

HEADPHONE

DETECTION

CLICK-AND-POP

SUPPRESSION

VDD

SGND

MIXER

ATTENUATOR

AND

SVSS

GAIN SETTING

14

OUTR (D4)

PVSS SVSS

6

13

(A1)

(C4)

C2

1µF

PGND

4

(C1)

( ) UCSP BUMP.

SGND TIME

INR

12

10

11

(B4) (B3)

(A4)

C4

220nF

CIN

RIGHT- 1µF

CHANNEL

AUDIO INPUT

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