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MAX98309/MAX98310

Mono 1.4W Class AB Audio Amplifiers

Typical Operating Characteristics (continued)

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

POWER DISSIPATION

vs. OUTPUT POWER

OUTPUT POWER (mW)

1500

1000

500

200

400

600

RL = 4I

800

1000

1200

1400

0

0

2000

VDD = 5V

fIN = 1kHz

POUT = POUTL + POUTR

RL = 8I

POWER DISSIPATION

vs. OUTPUT POWER

OUTPUT POWER (mW)

1200

900

300

600

100

200

300

400

600

500

RL = 4I

RL = 8I

700

800

0

0

1500

VDD = 3.7V

fIN = 1kHz

POUT = POUTL + POUTR

GAIN vs. FREQUENCY

(MAX98310)

FREQUENCY (Hz)

10k

1k

100

-1

0

1

2

3

4

5

6

7

8

9

10

11

12

-2

-3

-4

-5

10

100k

1000k

AV = 9dB

AV = 6dB

AV = 3dB

AV = 0dB

PSRR vs. FREQUENCY

(MAX98309)

FREQUENCY (Hz)

10k

1k

100

-130

-120

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0

-140

10

100k

RL = 8I

VRIPPLE = 200mV

VDD = 5V

VDD = 3.7V

CMRR vs. FREQUENCY

(MAX98309)

FREQUENCY (Hz)

10k

1k

100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0

-100

10

100k

RL = 8I

THD + N = 1%

VDD = 3.7V

VDD = 5V

PSRR vs. FREQUENCY

(MAX98310)

FREQUENCY (Hz)

10k

1k

100

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0

-120

10

100k

RL = 8I

VRIPPLE = 200mV

VDD = 3.7V

VDD = 5V

CMRR vs. FREQUENCY

(MAX98310)

FREQUENCY (Hz)

10k

1k

100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0

-100

10

100k

RL = 8I

THD + N = 1%

VDD = 3.7V

VDD = 5V