MAX9765 datasheet(8/33 Pages) MAXIM

Part #	MAX9765

Description	750mW Audio Amplifiers with Headphone Amp, Microphone Preamp, and Input Mux

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Manufacturer	MAXIM [Maxim Integrated Products]

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

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8 / 33 page

750mW Audio Amplifiers with Headphone Amp,

Microphone Preamp, and Input Mux

8

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Typical Operating Characteristics (continued)

(VDD = PVDD = 5V, BW = 22Hz to 22kHz, TA = +25°C, unless otherwise noted.)

POWER DISSIPATION vs. OUTPUT POWER

(SPEAKER MODE)

OUTPUT POWER (W)

0.75

0.50

0.25

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

0

1.00

VDD = 5V

RL = 4Ω

f = 1kHz

POWER DISSIPATION vs. OUTPUT POWER

(SPEAKER MODE)

OUTPUT POWER (W)

0.60

0.45

0.30

0.15

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

0

0.75

VDD = 5V

RL = 8Ω

f = 1kHz

POWER DISSIPATION vs. OUTPUT POWER

(SPEAKER MODE)

OUTPUT POWER (W)

0.75

0.50

0.25

0.1

0.2

0.3

0.4

0.5

0.6

0

1.00

VDD = 3V

RL = 4Ω

f = 1kHz

POWER DISSIPATION vs. OUTPUT POWER

(SPEAKER MODE)

OUTPUT POWER (W)

0.45

0.30

0.15

0.05

0.10

0.15

0.20

0.25

0.30

0

0.60

VDD = 3V

RL = 8Ω

f = 1kHz

OUTPUT POWER vs. TEMPERATURE

(SPEAKER MODE)

TEMPERATURE (°C)

35

60

10

-15

200

400

600

800

1000

1200

0

-40

85

THD+N = 10%

THD+N = 1%

f = 1kHz

RL = 4Ω

OUTPUT POWER vs. TEMPERATURE

(SPEAKER MODE)

TEMPERATURE (°C)

35

60

10

-15

100

200

300

400

500

800

700

600

0

-40

85

THD+N = 10%

THD+N = 1%

f = 1kHz

RL = 8Ω

POWER-SUPPLY REJECTION RATIO

vs. FREQUENCY (SPEAKER MODE)

FREQUENCY (Hz)

10k

1k

100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0

-100

10

100k

VDD = 5V

POWER-SUPPLY REJECTION RATIO

vs. FREQUENCY (SPEAKER MODE)

FREQUENCY (Hz)

10k

1k

100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0

-100

10

100k

VDD = 3V

ENTERING SHUTDOWN (SPEAKER MODE)

MAX9765 toc27

200ms/div

OUT_+ AND

OUT_-

OUT_+ -

OUT_-

100mV/div

500mV/div

2V/div

SHDN

RL = 8Ω

INPUT AC-COUPLED TO GND

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