MAX9775 查看數據表（PDF） - Maxim Integrated
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产品描述 (功能)
生产厂家
MAX9775
Maxim Integrated
MAX9775 Datasheet PDF : 37 Pages
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2 x 1.5W, Stereo Class D Audio Subsystem
with DirectDrive Headphone Amplifier
ELECTRICAL CHARACTERISTICS (continued)
(VDD = PVDD = CPVDD = 3.3V, GND = PGND = CPGND = 0V, SHDN = VDD, I2C 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 noted. C1 = C2 = C3 = 1µF. TA = TMIN to
TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)
PARAMETER
Output Power
Current Limit
Gain
Channel-to-Channel Gain
Tracking
Total Harmonic Distortion Plus
Noise
Signal-to-Noise Ratio
Slew Rate
Capacitive Drive
Crosstalk
VOLUME CONTROL
Volume Control
Mono Gain
Input Pair A Control
SYMBOL
POUT
CONDITIONS
TA = +25°C,
THD+N = 1%
RL = 16Ω
RL = 32Ω
AV
THD+N
SNR
SR
CL
TA = +25°C
RL = 16Ω (VOUT = 800mVRMS, f = 1kHz)
RL = 32Ω (VOUT = 800mVRMS, f = 1kHz)
RL = 16Ω,
VOUT = 800mVRMS
BW = 20Hz to
20kHz
A-weighted
L to R, R to L, f = 10kHz, RL = 16Ω,
VOUT = 160mVRMS
IN+6dB = 0
(minimum gain
setting)
HP gain (max)
SP gain (max)
HP gain (min)
SP gain (min)
IN+6dB = 1
(maximum gain
setting)
HP gain (max)
SP gain (max)
HP gain (min)
SP gain (min)
All outputs
Mono+6dB = 0
Mono+6dB = 1
INA+20dB = 0 (minimum gain setting)
INA+20dB = 1 (maximum gain setting)
MIN TYP MAX UNITS
60
mW
50
170
mA
+3
dB
±1
%
0.03
%
0.024
92
dB
93
0.3
V/µs
300
pF
75
dB
3
12
-72
-63
dB
9
18
-61
-57
0
dB
6
Set by IN+6dB
dB
20
Mute Attenuation
(Minimum Volume)
DIGITAL INPUTS (SHDN, SDA, SCL)
Input-Voltage High
VIH
Input-Voltage Low
VIL
Input Hysteresis (SDA, SCL)
VHYS
VIN = 1VRMS
80
dB
1.4
V
0.4
V
200
mV
_______________________________________________________________________________________ 5
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