1.2W, Low-EMI, Filterless,

Class D Audio Amplifier

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7

Typical Operating Characteristics (continued)

3.0

3.5

4.5

4.0

5.5

5.0

6.0

SUPPLY CURRENT

vs. SUPPLY VOLTAGE

SUPPLY VOLTAGE (V)

2.5

3.0

3.5

4.0

4.5

5.0

5.5

°C

°C

°C

0

0.06

0.04

0.02

0.10

0.08

0.14

0.12

0.16

2.5

3.0

3.5

4.0

4.5

5.0

5.5

SHUTDOWN SUPPLY CURRENT

vs. SUPPLY VOLTAGE

SUPPLY VOLTAGE (V)

°C

°C

°C

Functional Diagram

MAX9700

2

(B1)

5

(B2)

3

(C1)

7

(B3)

( ) UCSP BUMP.

1

μF

PGND

OUT+

OUT-

PGND

PGND

4

(C2)

GND

IN+

1

(A1)

SHDN

IN-

UVLO/POWER

MANAGEMENT

CLASS D

MODULATOR

SYNC

10

(B4)

6

(A3)

8

(A4)

9

(C4)

CLICK-AND-POP

SUPPRESSION

OSCILLATOR

1

μF

1

μF