MAX9775(2008) 查看數據表（PDF） - Maxim Integrated

零件编号

产品描述 (功能)

生产厂家

MAX9775
(Rev.:2008)

2 x 1.5W, Stereo Class D Audio Subsystem with DirectDrive Headphone Amplifier

Maxim Integrated 

2 x 1.5W, Stereo Class D Audio Subsystem

with DirectDrive Headphone Amplifier

Typical Operating Characteristics (continued)

(VDD = PVDD = CPVDD = 3.3V, GND = PGND = CPGND = 0V, SHDN = VDD, I2C default gain settings (INA gain = +20dB, INB gain =

INC gain = 0dB, volume setting = 0dB, mono path gain = 0dB, SHDN = 1, SSM = 1). Speaker load resistors (RLSP) are terminated

between OUT_+ and OUT_-, headphone load resistors are terminated to GND, unless otherwise stated. C1 = C2 = C3 = 1µF. TA =

+25°C, unless otherwise noted.)

CROSSTALK vs. INPUT AMPLITUDE

0

-10 fIN = 1kHz

-20

RL = 32Ω

GAIN = +3dB

-30

-40

-50

-60

RIGHT TO LEFT

-70

-80

-90

-100

-110

LEFT TO RIGHT

-120

0

0.4

0.8

1.2

INPUT AMPLITUDE (VRMS)

TURN-ON RESPONSE

MAX9775/76 toc44

SCL

2V/div

10ms/div

SPEAKER

OUTPUT

50mA/div

HEADPHONE

OUTPUT

2V/div

TURN-OFF RESPONSE

MAX9775/76 toc45

SCL

2V/div

10ms/div

SPEAKER

OUTPUT

50mA/div

HEADPHONE

OUTPUT

2V/div

MUTE-ON RESPONSE

MAX9775/76 toc46

SCL

2V/div

10ms/div

SPEAKER

OUTPUT

50mA/div

HEADPHONE

OUTPUT

2V/div

MUTE-OFF RESPONSE

MAX9775/76 toc47

SCL

2V/div

10ms/div

SPEAKER

OUTPUT

50mA/div

HEADPHONE

OUTPUT

2V/div

14 ______________________________________________________________________________________

Share Link: