MAX9746 View Datasheet(PDF) - Maxim Integrated

Part Name

Description

Manufacturer

MAX9746

1.2W, Low-EMI, Filterless, Class D Audio Amplifier

Maxim Integrated 

1.2W, Low-EMI, Filterless,

Class D Audio Amplifier

ABSOLUTE MAXIMUM RATINGS

VDD to GND..............................................................................6V

PVDD to PGND .........................................................................6V

GND to PGND .......................................................-0.3V to +0.3V

All Other Pins to GND.................................-0.3V to (VDD + 0.3V)

Continuous Current Into/Out of PVDD/PGND/OUT_ ........±600mA

Continuous Input Current (all other pins)..........................±20mA

Duration of OUT_ Short Circuit to GND or PVDD........Continuous

Duration of Short Circuit Between OUT+ and OUT- ..Continuous

Continuous Power Dissipation (TA = +70°C)

12-Bump UCSP (derate 6.1mW/°C above +70°C)........484mW

Junction Temperature ......................................................+150°C

Operating Temperature Range ...........................-40°C to +85°C

Storage Temperature Range .............................-65°C to +150°C

Lead Temperature (soldering, 10s) .................................+300°C

Bump Temperature (soldering)

Reflow ..........................................................................+235°C

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional

operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to

absolute maximum rating conditions for extended periods may affect device reliability.

ELECTRICAL CHARACTERISTICS

(VDD = PVDD = SHDN = 3.3V, GND = PGND = 0V, SYNC = GND (FFM), RL = 8Ω, RL connected between OUT+ and OUT-, TA =

TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Notes 1, 2)

PARAMETER

SYMBOL

CONDITIONS

MIN TYP MAX UNITS

GENERAL

Supply Voltage Range

VDD Inferred from PSRR test

2.5

5.5

V

Quiescent Current

IDD

4

5.2

mA

Shutdown Current

Turn-On Time

ISHDN

tON

0.1

10

µA

30

ms

Input Resistance

RIN

TA = +25°C

12

20

kΩ

Input Bias Voltage

VBIAS Either input

0.73 0.83 0.93

V

Voltage Gain

AV

12

dB

Output Offset Voltage

VOS

TA = +25°C

TMIN ≤ TA ≤ TMAX

±11

±80

mV

±120

Common-Mode Rejection Ratio

CMRR fIN = 1kHz, input referred

72

dB

VDD = 2.5V to 5.5V, TA = +25°C

50

70

Power-Supply Rejection Ratio

(Note 3)

PSRR

200mVP-P ripple

fRIPPLE = 217Hz

fRIPPLE = 20kHz

72

dB

55

Output Power

POUT THD+N = 1%

RL = 8Ω

530

mW

Total Harmonic Distortion

Plus Noise

Signal-to-Noise Ratio

Oscillator Frequency

THD+N

SNR

fOSC

fIN = 1kHz, either

FFM or SSM

VOUT = 2VRMS

SYNC = GND

SYNC = float

RL = 8Ω,

POUT = 125mW

BW = 22Hz FFM

to 22kHz SSM

FFM

A-weighted

SSM

SYNC = VDD (SSM mode)

0.1

%

89

87

dB

92

90

980 1100 1220

1280 1450 1620

kHz

1220

±120

2 _______________________________________________________________________________________

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