MAX4295EEE(2005) 데이터 시트보기 (PDF) - Maxim Integrated

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MAX4295EEE
(Rev.:2005)

Mono, 2W, Switch-Mode (Class D) Audio Power Amplifier

Maxim Integrated 

Mono, 2W, Switch-Mode (Class D)

Audio Power Amplifier

Typical Operating Characteristics (continued)

(VCC = PVCC = +3V, input amplifier gain = -1, SHDN = VCC , TA = +25°C, unless otherwise noted.)

OSCILLATOR FREQUENCY DEVIATION

vs. SUPPLY VOLTAGE

0.015

0.010

0.005

125kHz

0

-0.005

-0.010

-0.015

250kHz

500kHz

-0.020

1MHz

-0.025

2.5 3.0 3.5 4.0 4.5 5.0 5.5

SUPPLY VOLTAGE (V)

STARTUP/SHUTDOWN

WAVEFORM

MAX4295 toc27

VOUT

4V/div

SHDN

RL = 4Ω

fOSC = 250kHz

fIN = 10kHz

CSS = 560pF

400µs/div

2.5V/div

PIN

1, 12

2, 15

3

4, 13

5

6

7

8

9

10

11

14

16

NAME

GND

PVCC

OUT+

PGND

VCC

VCM

IN

AOUT

SHDN

FS1

FS2

OUT-

SS

Pin Description

FUNCTION

Analog Ground

H-Bridge Power Supply

Positive H-Bridge Output

Power Ground

Analog Power Supply

Audio Input Common-Mode Voltage. Do not connect. Minimize parasitic coupling to this pin.

Audio Input

Input Amplifier Output

Active-Low Shutdown Input. Connect to VCC for normal operation. Do not leave floating.

Frequency Select Input 1

Frequency Select Input 2

Negative H-Bridge Output

Soft-Start

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