MAX9728AEUD+ datasheet(4/19 Pages) MAXIM

Part #	MAX9728AEUD+

Description	60mW, DirectDrive, Stereo Headphone Amplifiers with Shutdown

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Manufacturer	MAXIM [Maxim Integrated Products]

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60mW, DirectDrive, Stereo Headphone

Amplifiers with Shutdown

4

_______________________________________________________________________________________

100

020

60

40

80

100

10

1

0.1

0.01

0.001

TOTAL HARMONIC DISTORTION PLUS

NOISE vs. OUTPUT POWER

OUTPUT POWER (mW)

VDD = 5V

RL = 16

Ω

fIN = 1kHz

fIN = 20Hz

fIN = 10kHz

100

020

60

40

80

120

10

1

0.1

0.01

0.001

TOTAL HARMONIC DISTORTION PLUS

NOISE vs. OUTPUT POWER

OUTPUT POWER (mW)

100

VDD = 5V

RL = 32

Ω

fIN = 1kHz

fIN = 20Hz

fIN = 10kHz

10

1k

100

10k

100k

TOTAL HARMONIC DISTORTION PLUS

NOISE vs. FREQUENCY

FREQUENCY (Hz)

1

0.1

0.001

0.01

VDD = 5V

RL = 16

Ω

POUT = 20mW

POUT = 37mW

10

1k

100

10k

100k

TOTAL HARMONIC DISTORTION PLUS

NOISE vs. FREQUENCY

FREQUENCY (Hz)

1

0.1

0.001

0.01

VDD = 5V

RL = 32

Ω

POUT = 50mW

POUT = 30mW

0

20

10

40

30

60

50

70

4.5

5.0

5.5

OUTPUT POWER vs. SUPPLY VOLTAGE

SUPPLY VOLTAGE (V)

fIN = 1kHz

RL = 16

Ω

THD+N = 1%

THD+N = 10%

0

40

20

80

60

100

120

4.5

5.0

5.5

OUTPUT POWER vs. SUPPLY VOLTAGE

SUPPLY VOLTAGE (V)

fIN = 1kHz

RL = 32

Ω

THD+N = 1%

THD+N = 10%

Typical Operating Characteristics

(VDD = 5V, PGND = SGND = 0V, SHDN = VDD, C1 = C2 = 1µF, RL =

∞, gain = -1.5V/V (RIN = 20kΩ, RF = 30kΩ for the MAX9728A),

THD+N measurement bandwidth = 22Hz to 22kHz, both outputs driven in phase, TA = +25°C, unless otherwise noted.)

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