MAX9750 查看數據表（PDF） - Maxim Integrated

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MAX9750

2.6W Stereo Audio Power Amplifiers and DirectDrive Headphone Amplifiers

Maxim Integrated 

2.6W Stereo Audio Power Amplifiers and

DirectDrive Headphone Amplifiers

ELECTRICAL CHARACTERISTICS (continued)

(VDD = PVDD = CPVDD = HPVDD = 5V, GND = PGND = CPGND = 0V, SHDN = VDD, CBIAS = 1µF, C1 = C2 = 1µF, speaker load

terminated between OUT_+ and OUT_-, headphone load terminated between HPOUT_ and GND, GAIN1 = GAIN2 = VOL = GAIN = 0V,

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

PARAMETER

Output Power (Note 4)

SYMBOL

CONDITIONS

MIN TYP MAX UNITS

MAX9750A/

RL = 8Ω

MAX9750B/

MAX9751/

0.9

1.4

MAX9755

MAX9750C 0.65 0.8

MAX9750A/

THD+N = 1%,

MAX9750B/

2.3

POUT

f = 1kHz,

RL = 4Ω

MAX9751/

W

TA = +25°C

MAX9755

MAX9750C 1.2

1.5

MAX9750A/

RL = 3Ω

MAX9750B/

MAX9751/

2.6

MAX9755

MAX9750C

2.2

Total Harmonic Distortion Plus

Noise

Signal-to-Noise Ratio

Noise

Capacitive-Load Drive

Crosstalk

Off-Isolation

THD+N

SNR

Vn

CL

RL = 8Ω, POUT = 500mW, f = 1kHz

RL = 4Ω, POUT = 1W, f = 1kHz

RL = 8Ω, POUT = 500mW, BW = 22Hz to

22kHz

BW = 22Hz to 22kHz, A-weighted

No sustained oscillations

L to R, R to L, f = 10kHz

Any unselected input to any active input,

f = 10kHz (MAX9751), input referred

0.01

%

0.02

90

dB

80

µVRMS

200

pF

75

dB

75

Slew Rate

SR

1.4

V/µs

GAIN1 = 0, GAIN2 = 0

9

GAIN1 = 1, GAIN2 = 0

10.5

MAX9750A

GAIN1 = 0, GAIN2 = 1

12

GAIN1 = 1, GAIN2 = 1

13.5

GAIN1 = 0, GAIN2 = 0

15

Gain (Maximum Volume Setting) AVMAX(SPKR) MAX9750B

GAIN1 = 1, GAIN2 = 0

GAIN1 = 0, GAIN2 = 1

16.5

18

dB

GAIN1 = 1, GAIN2 = 1

19.5

GAIN1 = 0, GAIN2 = 0

6

GAIN1 = 1, GAIN2 = 0

7.5

MAX9750C

GAIN1 = 0, GAIN2 = 1

9

GAIN1 = 1, GAIN2 = 1

10.5

Gain (MAX9751/MAX9755)

GAIN = 1

AV

GAIN = 0

9

dB

10.5

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