MAX9700AEBC-T datasheet(5/19 Pages) MAXIM

Part #	MAX9700AEBC-T

Description	1.2W, Low-EMI, Filterless, Class D Audio Amplifier

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Manufacturer	MAXIM [Maxim Integrated Products]

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1.2W, Low-EMI, Filterless,

Class D Audio Amplifier

_______________________________________________________________________________________

5

Typical Operating Characteristics (continued)

(VDD = 3.3V, SYNC = GND (SSM), TA = +25°C, unless otherwise noted.)

10

0

0.5

1.0

1.5

2.0

2.5

3.0

1

0.1

0.01

TOTAL HARMONIC DISTORTION PLUS NOISE

vs. COMMON-MODE VOLTAGE

COMMON-MODE VOLTAGE (V)

VDD = 3.3V

RL = 8

Ω

f = 1kHz

POUT = 300mW

DIFFERENTIAL INPUT

EFFICIENCY vs. OUTPUT POWER

OUTPUT POWER (W)

1.2

0.9

0.6

0.3

10

20

30

40

50

60

70

80

90

100

0

01.5

RL = 4

Ω

RL = 8

Ω

VDD = 3.3V

f = 1kHz

EFFICIENCY vs. OUTPUT POWER

OUTPUT POWER (W)

2.0

1.5

0.5

10

20

30

40

50

60

70

80

90

100

0

3.0

RL = 8

Ω

RL = 4

Ω

VDD = 5V

f = 1kHz

1.0

2.5

0

30

20

10

50

40

90

80

70

60

100

2.5

3.0

3.5

4.0

4.5

5.0

5.5

EFFICIENCY vs. SUPPLY VOLTAGE

SUPPLY VOLTAGE (V)

RL = 8

Ω

f = 1kHz

POUT = MAX (THD+N = 1%)

RL = 4

Ω

0

30

20

10

50

40

90

80

70

60

100

800

1000

1200

1400

1800

1600

2000

EFFICIENCY

vs. SYNC INPUT FREQUENCY

SYNC FREQUENCY (kHz)

VDD = 3.3V

f = 1kHz

POUT = 300mW

RL = 8

Ω

OUTPUT POWER vs.

SUPPLY VOLTAGE

SUPPLY VOLTAGE (V)

5.0

4.5

4.0

3.5

3.0

1.5

2.0

2.5

3.0

3.5

0

2.5

5.5

1.0

0.5

RL = 4

Ω

THD+N = 10%

RL = 4

Ω

THD+N = 1%

RL = 8

Ω

THD+N = 10%

RL = 8

Ω

THD+N = 1%

f = 1kHz

OUTPUT POWER vs. LOAD RESISTANCE

LOAD RESISTANCE (

Ω)

90

80

70

60

50

40

30

20

10

400

800

1200

1600

2000

0

100

VDD = 5V

f = 1kHz

THD+N = 1%

VDD = 3.3V

0

-100

10

100

1k

10k

100k

COMMON-MODE REJECTION RATIO

vs. FREQUENCY

-80

FREQUENCY (Hz)

-60

-40

-20

-30

-50

-70

-90

-10

INPUT REFERRED

VIN = 200mVP-P

0

-100

10

100

1k

10k

100k

POWER-SUPPLY REJECTION RATIO

vs. FREQUENCY

-80

FREQUENCY (Hz)

-60

-40

-20

-30

-50

-70

-90

-10

OUTPUT REFERRED

INPUTS AC GROUNDED

VDD = 3.3V

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