MAX9750 データシートの表示（PDF） - Maxim Integrated
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MAX9750 Datasheet PDF : 31 Pages
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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
SYMBOL
HEADPHONE AMPLIFIER (HPS = VDD)
Output Offset Voltage
VOS
Power-Supply Rejection Ratio
(Note 3)
PSRR
Output Power
POUT
Total Harmonic Distortion Plus
Noise
THD+N
Signal-to-Noise Ratio
SNR
Noise
Vn
Capacitive-Load Drive
CL
Crosstalk
Off-Isolation
Slew Rate
SR
ESD
ESD
Gain
CHARGE PUMP
Charge-Pump Frequency
VOLUME CONTROL (MAX9750_)
VOL Input Impedance
VOL Input Hysteresis
AV
fOSC
RVOL
CONDITIONS
TA = +25°C
HPVDD = 3V to 5.5V, TA = +25°C
f = 1kHz, VRIPPLE = 200mVP-P
f = 10kHz, VRIPPLE = 200mVP-P
THD+N = 1%,
f = 1kHz, TA = +25°C
RL = 32Ω
RL = 16Ω
RL = 32Ω, POUT = 20mW, f = 1kHz
RL = 16Ω, POUT = 75mW, f = 1kHz
RL = 32Ω, POUT = 50mW, BW = 22Hz to
22kHz
BW = 22Hz to 22kHz
No sustained oscillations
L to R, R to L, f = 10kHz
Any unselected input to any active input,
f = 10kHz (MAX9751), input referred
IEC air discharge
GAIN2 = GAIN = 0, GAIN1 = X
GAIN2 = GAIN = 1, GAIN1 = X
Full Mute Input Voltage
(Note 5)
Channel Matching
BEEP INPUT (MAX9750_)
Beep Signal Minimum Amplitude
Beep Signal Minimum Frequency
VBEEP
fBEEP
AV = -25dB to +13.5dB
RB = 33kΩ (Note 6)
MIN TYP MAX UNITS
±2
±7
mV
60
75
73
dB
63
40
50
mW
110
0.007
%
0.03
95
dB
12
µVRMS
200
pF
88
dB
74
0.4
V/µs
±8
kV
0
dB
3
500 550
600
kHz
100
MΩ
10
mV
0.858 x
V
HPVDD
±0.2
dB
0.8
VP-P
400
Hz
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