MAX9730 查看數據表（PDF） - Maxim Integrated

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MAX9730

2.4W, Single-Supply, Class G Power Amplifier

Maxim Integrated 

2.4W, Single-Supply, Class G Power Amplifier

ABSOLUTE MAXIMUM RATINGS

(Voltages with respect to GND.)

VCC, CPVDD .............................................................-0.3V to +6V

PVSS, SVSS ...............................................................-6V to +0.3V

CPGND..................................................................-0.3V to +0.3V

OUT+, OUT-...................................(SVSS - 0.3V) to (VCC + 0.3V)

IN+, IN-, FB+, FB- ......................................-0.3V to (VCC + 0.3V)

C1N..........................................(PVSS - 0.3V) to (CPGND + 0.3V)

C1P.......................................(CPGND - 0.3V) to (CPVDD + 0.3V)

FS, SHDN ...................................................-0.3V to (VCC + 0.3V)

Continuous Current Into/Out of

OUT+, OUT-, VCC, GND, SVSS .....................................800mA

CPVDD, CPGND, C1P, C1N, PVSS.................................800mA

Any Other Pin ..................................................................20mA

Continuous Power Dissipation (TA = +70°C)

20-Bump UCSP (derate 10.3mW/°C above +70°C) .....827mW

28-Pin TQFN (derate 20.8mW/°C above +70°C) ........1667mW

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

(VCC = CPVDD = SHDN = 3.6V, GND = CPGND = 0V, RIN+ = RIN- = 10kΩ, RFB+ = RFB- = 10kΩ, RFS = 100kΩ, C1 = 4.7µF, C2 =

10µF; speaker load resistors (RL) are terminated between OUT+ and OUT-, unless otherwise stated; TA = TMIN to TMAX, unless other-

wise noted. Typical values are at TA = +25°C.) (Notes 1, 2)

PARAMETER

SYMBOL

CONDITIONS

MIN TYP MAX UNITS

GENERAL

Supply Voltage Range

Quiescent Current

Chip Power Dissipation

Shutdown Current

VCC

ICC

PDISS

ISHDN

Inferred from PSRR test

VOUT = 2.8VRMS, f = 1kHz, RL = 8Ω

SHDN = GND

2.7

5.5

V

8

12

mA

0.9

W

0.3

5

µA

Turn-On Time

tON

Time from shutdown or power-on to full

operation

50

ms

Input DC Bias Voltage

Charge-Pump Oscillator

Frequency (Slow Mode)

Maximum Capacitive Load

SHDN Input Threshold (Note 3)

SHDN Input Leakage Current

VBIAS

fOSC

CL

IN_ inputs

ILOAD = 0mA (slow mode)

ILOAD > 100mA (normal mode)

VIH

VIL

1.1

1.24

1.4

V

55

83

110

kHz

230 330 430

200

pF

1.4

V

0.4

±1

µA

SPEAKER AMPLIFIER

Output Offset Voltage

Common-Mode Rejection Ratio

VOS

CMRR

TA = +25°C

TMIN ≤ TA ≤ TMAX

fIN = 1kHz (Note 4)

±3

±15

mV

±20

68

dB

Click-and-Pop Level

Peak voltage into/out of shutdown

VCP

A-weighted, 32 samples per second

(Notes 5, 6)

-52

dBV

2 _______________________________________________________________________________________

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