MAX9715 데이터 시트보기 (PDF) - Maxim Integrated

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MAX9715

2.8W, Low-EMI, Stereo, Filterless Class D Audio Amplifier

Maxim Integrated 

2.8W, Low-EMI, Stereo, Filterless Class D

Audio Amplifier

Typical Operating Characteristics (continued)

(VDD = 5.0V, CVDD = 3 x 0.1μF, CBIAS = 1μF, CINL = CINR = 1μF, AV = +10.5dB, TA = +25°C, unless otherwise noted.) (See the

Typical Operating Circuit/Functional Diagram)

SHUTDOWN CURRENT

vs. SUPPLY VOLTAGE

0.40

0.35

0.30

0.25

0.20

0.15

0.10

0.05

0

4.5

4.8

5.0

5.3

5.5

SUPPLY VOLTAGE (V)

POWER-ON/OFF WAVEFORM

MAX9715 toc17

SHDN

5V/div

10ms/div

IOUT

200mA/div

PIN

1, 12

2

3

4, 9

5

6

7

8

10

11

13

14

15

16

—

Pin Description

NAME

PGND

OUTL+

OUTL-

PVDD

N.C.

GAIN

GND

SHDN

OUTR-

OUTR+

BIAS

VDD

INR

INL

EP

FUNCTION

Power Ground

Left-Channel Positive Speaker Output

Left-Channel Negative Speaker Output

Positive Speaker Power-Supply Input. Power-supply input for speaker amplifier output stages. Connect

to VDD and bypass with 0.1μF to PGND.

No connection. Not internally connected.

Gain Select. Sets the internal amplifier gain. See the Gain Selection section.

Ground

Shutdown Control. Drive SHDN low to shut down the MAX9715.

Right-Channel Negative Speaker Output

Right-Channel Positive Speaker Output

Bias Voltage Output. VBIAS = 1.8V, bypass BIAS to GND with a 1μF ceramic capacitor.

Positive Power-Supply Input. Bypass to GND with a 0.1μF ceramic capacitor.

Right-Channel Input

Left-Channel Input

Exposed Paddle. Connect EP to an electrically isolated copper pad or GND.

6 _______________________________________________________________________________________

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