MAX9711 查看數據表（PDF） - Maxim Integrated

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MAX9711

3W Mono/Stereo BTL Audio Power Amplifiers with Shutdown

Maxim Integrated 

3W Mono/Stereo BTL Audio Power Amplifiers

with Shutdown

ABSOLUTE MAXIMUM RATINGS

VDD to GND, PGND ...............................................................+6V

PVDD to VDD .......................................................................±0.3V

PGND to GND.....................................................................±0.3V

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

Continuous Input Current (into any pin

except power supply and output pins).........................±20mA

Continuous Power Dissipation (TA = +70°C)

12-Pin Thin QFN (derate 16.9mW/°C above +70°C) ....1349mW

16-Pin TSSOP-EP (derate 21.3mW/°C above +70°C)...1702mW

20-Pin Thin QFN (derate 20.8mW/°C above +70°C) ....1667mW

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

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

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

Lead Temperature (soldering, 10s) .................................+300°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 = 5.0V, GND = PGND = MUTE = 0V, V SHDN = 5V, RIN = RF = 15kΩ, RL = ∞. TA = TMIN to TMAX, unless otherwise

noted. Typical values are at TA = +25°C.) (Note 1)

PARAMETER

SYMBOL

CONDITIONS

MIN TYP MAX UNITS

Supply Voltage Range

VDD/PVDD Inferred from PSRR test

4.5

5.5

V

Quiescent Supply Current

(IVDD + IPVDD)

MAX9710

IDD

MAX9711

12

30

mA

7

17

Shutdown Supply Current

ISHDN SHDN = GND

0.5

30

µA

Turn-On Time

tON

CBIAS = 1µF (10% of final value)

CBIAS = 0.1µF (10% of final value)

300

ms

30

Thermal Shutdown Threshold

160

°C

Thermal Shutdown Hysteresis

15

°C

OUTPUT AMPLIFIERS

Output Offset Voltage

VOS

VOUT_+ - VOUT_-, AV = 2

±2

±14

mV

VDD = 4.5V to 5.5V

82

100

Power-Supply Rejection Ratio

PSRR

VRIPPLE = 200mVP-P f = 1kHz

(Note 2)

87

dB

f = 20kHz

74

Output Power

POUT

fIN = 1kHz,

THD+N < 1%

RL = 8Ω

RL = 4Ω

RL = 3Ω

1.1

1.4

2.6

W

3

Total Harmonic Distortion Plus

Noise

THD+N

fIN = 1kHz, BW =

22Hz to 22kHz

POUT = 1.2W, RL = 8Ω

POUT = 2W, 4Ω

0.005

0.01

%

Signal-to-Noise Ratio

SNR RL = 8Ω, VOUT = 2.8VRMS, BW = 22Hz to 22kHz

95

dB

Slew Rate

SR

1.6

V/µs

Maximum Capacitive Load Drive

CL

No sustained oscillations

1

nF

Crosstalk

fIN = 10kHz

77

dB

BIAS VOLTAGE (BIAS)

BIAS Voltage

VBIAS

2.35 2.5 2.65

V

Output Resistance

RBIAS

50

kΩ

DIGITAL INPUTS (MUTE, SHDN)

Input Voltage High

VIH

2

V

Input Voltage Low

VIL

0.8

V

Input Leakage Current

IIN

±1

µA

Note 1: All devices are 100% production tested at +25°C. All temperature limits are guaranteed by design.

Note 2: PSSR is specified with the amplifier inputs connected to GND through RIN and CIN.

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