0

-140

0

100

1000

WIDEBAND OUTPUT SPECTRUM

FIXED-FREQUENCY MODE

-80

-100

-20

-60

-120

-40

FREQUENCY (MHz)

10

Ω

INPUTS AC GROUNDED

0

-140

0

100

1000

WIDEBAND OUTPUT SPECTRUM

SPREAD-SPECTRUM MODE

-80

-100

-20

-60

-120

-40

FREQUENCY (MHz)

10

Ω

INPUTS AC GROUNDED

2.3W, Ultra-Low-EMI, Filterless,

Class D Audio Amplifier

_______________________________________________________________________________________

7

4

5

6

7

8

9

10

2.5

3.5

4.5

5.5

SUPPLY CURRENT

vs. SUPPLY VOLTAGE

SUPPLY VOLTAGE (V)

SYNC = GND (FFM)

NO LOAD

INPUTS AC GROUNDED

5.00

5.25

5.50

5.75

6.25

6.00

6.50

6.75

7.00

-40

-15

10

35

60

85

SUPPLY CURRENT

vs. TEMPERATURE

TEMPERATURE (

°C)

SYNC = GND (FFM))

NO LOAD

INPUTS AC GROUNDED

0

0.10

0.20

0.30

0.50

0.40

0.60

0.80

0.70

0.90

1.00

2.5

3.0

3.5

4.0

4.5

5.0

5.5

SHUTDOWN CURRENT

vs. SUPPLY VOLTAGE

SUPPLY VOLTAGE (V)

°C

°C

°C

NO LOAD

INPUTS AC GROUNDED

SHDN = GND

TURN-ON/TURN-OFF RESPONSE

MAX9705 toc31

MAX9705

OUTPUT

SHDN

0V

250mV/div

3V

10ms/div

f = 1kHz

Ω

Typical Operating Characteristics (continued)

load condition apply to the MAX9705_ETB+T only.)