MAX4411 datasheet(7/18 Pages) MAXIM

Part #	MAX4411

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

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Manufacturer	MAXIM [Maxim Integrated Products]

Direct Link	https://www.maximintegrated.com/en.html

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80mW, Fixed-Gain, DirectDrive, Stereo

Headphone Amplifier with Shutdown

_______________________________________________________________________________________

7

Typical Operating Characteristics (continued)

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

GAIN FLATNESS vs. FREQUENCY

FREQUENCY (Hz)

100k

10k

1k

100

-20

-25

-15

-10

-5

0

5

10

-30

10

1M

VDD = 3V

RL = 16

Ω

AV = -1.5V/V

AV = -2V/V

SUPPLY CURRENT

vs. SUPPLY VOLTAGE

SUPPLY VOLTAGE (V)

2.7

1.8

0.9

2

4

6

8

10

0

3.6

POWER DISSIPATION

vs. OUTPUT POWER

OUTPUT POWER (mW)

160

120

40

80

20

40

60

80

120

100

140

160

180

0

200

INPUTS 180

°

OUT OF PHASE

fIN = 1kHz

RL = 32

Ω

VDD = 3V

POUT = POUTL + POUTR

INPUTS

IN PHASE

POWER DISSIPATION

vs. OUTPUT POWER

OUTPUT POWER (mW)

50

40

30

10

20

40

60

80

100

120

140

0

060

INPUTS 180

°

OUT OF PHASE

fIN = 1kHz

RL = 16

Ω

VDD = 1.8V

POUT = POUTL + POUTR

INPUTS

IN PHASE

POWER DISSIPATION

vs. OUTPUT POWER

OUTPUT POWER (mW)

50

40

30

10

20

10

20

30

40

50

60

70

0

060

INPUTS 180

°

OUT OF PHASE

fIN = 1kHz

RL = 32

Ω

VDD = 1.8V

POUT = POUTL + POUTR

INPUTS

IN PHASE

CHARGE-PUMP OUTPUT RESISTANCE

vs. SUPPLY VOLTAGE

SUPPLY VOLTAGE (V)

3.3

3.0

2.7

2.4

2.1

2

4

6

8

10

0

1.8

3.6

VIN_ = GND

IPVSS = 10mA

NO LOAD

OUTPUT POWER vs. CHARGE-PUMP

CAPACITANCE AND LOAD RESISTANCE

LOAD RESISTANCE (

Ω)

40

30

20

10

30

40

50

60

70

80

90

0

10

50

fIN = 1kHz

THD+N = 1%

INPUTS IN PHASE

C1 = C2 = 1

µF

C1 = C2 = 0.47

µF

C1 = C2 = 0.68

µF

C1 = C2 = 2.2

µF

SHUTDOWN SUPPLY CURRENT

vs. SUPPLY VOLTAGE

SUPPLY VOLTAGE (V)

2.7

1.8

0.9

2

4

6

8

10

0

3.6

SHDNL = SHDNR = GND

FREQUENCY (kHz)

10

1

0.1

100

OUTPUT SPECTRUM vs. FREQUENCY

-100

-80

-60

-40

-20

0

-120

VOUT = 1VP-P

fIN = 1kHz

RL = 32

Ω

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