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MAX98309/MAX98310

Mono 1.4W Class AB Audio Amplifiers

Typical Operating Characteristics

(VDD = 3.7V, VGND = 0V, SHDN = VDD, GAIN = GND (RF = RIN = 10kI), CBIAS = 0.1µF, CIN = 1µF, no load, unless otherwise noted.)

TOTAL HARMONIC DISTORTION PLUS

NOISE vs. FREQUENCY

FREQUENCY (kHz)

10k

1k

100

0.01

0.1

1

10

0.001

10

100k

VDD = 4.2V

RL = 4I

POUT = 300mW

POUT = 50mW

TOTAL HARMONIC DISTORTION PLUS

NOISE vs. FREQUENCY

FREQUENCY (Hz)

10k

1k

100

0.01

0.1

1

10

100

0.001

10

100k

VDD = 5V

RL = 8I

POUT = 200mW

POUT = 1.2W

TOTAL HARMONIC DISTORTION PLUS

NOISE vs. FREQUENCY

FREQUENCY (Hz)

10k

1k

100

0.01

0.1

1

10

100

0.001

10

100k

VDD = 3.7V

RL = 4I

POUT = 800mW

POUT = 50mW

TOTAL HARMONIC DISTORTION PLUS

NOISE vs. FREQUENCY

FREQUENCY (Hz)

10k

1k

100

0.01

0.1

1

10

100

0.001

10

100k

VDD = 3.7V

RL = 8I

POUT = 50mW

POUT = 500mW

TOTAL HARMONIC DISTORTION PLUS

NOISE vs. OUTPUT POWER

OUTPUT POWER (mW)

1500

1250

1000

750

500

250

0.01

0.1

1

10

100

0.001

0

1750

VDD = 5V

RL = 8I

fIN = 6kHz

fIN = 300Hz

fIN = 1kHz

TOTAL HARMONIC DISTORTION PLUS

NOISE vs. OUTPUT POWER

OUTPUT POWER (mW)

1500

1000

500

0.01

0.1

1

10

100

0.001

0

2000

VDD = 4.2V

RL = 4I

fIN = 6kHz

fIN = 300Hz

fIN = 1kHz

TOTAL HARMONIC DISTORTION PLUS

NOISE vs. OUTPUT POWER

OUTPUT POWER (mW)

1200

800

400

0.01

0.1

1

10

100

0.001

0

1600

VDD = 3.7V

RL = 4I

fIN = 6kHz

fIN = 300Hz

fIN = 1kHz

TOTAL HARMONIC DISTORTION PLUS

NOISE vs. OUTPUT POWER

OUTPUT POWER (mW)

800

600

400

200

0.01

0.1

1

10

100

0.001

0

1000

VDD = 3.7V

RL = 8I

fIN = 6kHz

fIN = 300Hz

fIN = 1kHz