MAX4411BEBE-T 查看數據表（PDF） - Maxim Integrated

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MAX4411BEBE-T

80mW, Fixed-Gain, DirectDrive, Stereo Headphone Amplifier with Shutdown

Maxim Integrated 

80mW, Fixed-Gain, DirectDrive, Stereo

Headphone Amplifier with Shutdown

Typical Operating Characteristics (continued)

(C1 = C2 = 2.2µF, THD+N measurement bandwidth = 22Hz to 22kHz, TA = +25°C, unless otherwise noted.)

SHDNR

EXITING SHUTDOWN

MAX4411 toc40

2V/div

POWER-UP/DOWN WAVEFORM

MAX4411 toc41

3V

VDD

0V

OUTR

500mV/div

OUT_

-100dB

10mV/div

OUT_FFT

20dB/div

fIN = 1kHz

RL = 32Ω

SHDNL = GND

200µs/div

RL = 32Ω

VIN_ = GND

200ms/div

FFT: 25Hz/div

PIN

QFN

1

2

3

4, 6, 8, 12,

16, 20

5

7

9

10

11

13

14

15

17

18

19

—

BUMP

UCSP

A4

B4

C4

—

D4

D3

D2

D1

C2

C1

B1

A1

A2

B2

A3

—

Pin Description

NAME

C1P

PGND

C1N

N.C.

PVSS

SVSS

OUTL

SVDD

OUTR

INL

SHDNR

INR

SGND

SHDNL

PVDD

EP

FUNCTION

Flying Capacitor Positive Terminal

Power Ground. Connect to ground (0V).

Flying Capacitor Negative Terminal

No Connection. Not internally connected.

Charge-Pump Output

Amplifier Negative Power Supply. Connect to PVSS.

Left-Channel Output

Amplifier Positive Power Supply. Connect to positive supply (1.8V to 3.6V).

Right-Channel Output

Left-Channel Audio Input

Active-Low Right-Channel Shutdown. Connect to VDD for normal operation.

Right-Channel Audio Input

Signal Ground. Connect to ground (0V).

Active-Low Left-Channel Shutdown. Connect to VDD for normal operation.

Charge-Pump Power Supply. Powers charge-pump inverter, charge-pump logic, and

oscillator. Connect to positive supply (1.8V to 3.6V).

Exposed Paddle. Leave this connection floating. Do not tie to either GND or VDD.

8 _______________________________________________________________________________________

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