MAX9750CETI-T

更新时间： 2024-01-26 03:04:45

品牌	Logo	应用领域
美信 - MAXIM		放大器功率放大器
页数	文件大小	规格书
31页	674K
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数据手册

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MAX9750CETI-T 数据手册

2.6W Stereo Audio Power Amplifiers and

DirectDrive Headphone Amplifiers

ꢀLꢀCTRICAL CHARACTꢀRISTICS (continued)

= PV

= CPV

= HPV

= 5V, GND = PGND = CPGND = 0V, SHDN = V , C

= 1µF, C1 = C2 = 1µF, speaker load ter-

BIAS

minated between OUT_+ and OUT_-, headphone load terminated between HPOUT_ and GND, MAX9750: GAIN1 = GAIN2 = VOL =

= IN1/2 = GND, T = T to T , unless otherwise noted. Typical values are

R = 33kΩ = GND, MAX9751/MAX9755: GAIN = V

MIN

MAX

at T = +25°C.) (Note 1)

PARAMꢀTꢀR

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

HꢀADPHONꢀ AMPLIFIꢀR (HPS = V

Output Offset Voltage

)

= +25°C

HPV

= 3V to 5.5V, T = +25°C

Power-Supply Rejection Ratio

(Note 3)

PSRR

f = 1kHz, V

= 200mV

P-P

RIPPLE

f = 10kHz, V

= 200mV

P-P

RIPPLE

THD+N = 1%,

f = 1kHz,

R = 32Ω

Output Power

OUT

R = 16Ω

110

= +25°C

R = 32Ω, P

= 20mW, f = 1kHz

= 75mW, f = 1kHz

= 50mW,

0.007

0.03

OUT

Total Harmonic Distortion Plus

Noise

THD+N

SNR

R = 16Ω, P

OUT

R = 32Ω, P

OUT

Signal-to-Noise Ratio

BW = 22Hz to 22kHz

Noise

BW = 22Hz to 22kHz

200

µV

RMS

Capacitive-Load Drive

No sustained oscillations

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

Crosstalk

Any unselected input to any active input,

f = 10kHz (MAX9751)

Slew Rate

ESD

0.4

V/µs

ESD

IEC air discharge

GAIN2 = GAIN = 1, GAIN1 = X

GAIN2 = GAIN = 0, GAIN1 = X

Gain

CHARGꢀ PUMP

Charge-Pump Frequency

VOLUMꢀ CONTROL (MAX9750_)

VOL Input Impedance

VOL Input Hysteresis

500

550

600

kHz

OSC

100

MΩ

VOL

0.858 x

Full Mute Input Voltage

(Note 4)

HPV

Channel Matching

A = -25dB to +13.5dB

0.2

BꢀꢀP INPUT (MAX9750_)

Beep Signal Minimum Amplitude

Beep Signal Minimum Frequency

0.8

P-P

BEEP

200

BEEP

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