MAX9742 查看數據表（PDF） - Maxim Integrated
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MAX9742 Datasheet PDF : 36 Pages
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Single-/Dual-Supply, Stereo 16W,
Class D Amplifier with Differential Inputs
ELECTRICAL CHARACTERISTICS—Dual Supplies (continued)
(VDD = 15V, VSS = VSUB = -15V, VSHDN = 3.3V, VMID = LGND = 0V, CVDD = CVSS = 1000µF, CBYP = 1µF, CSFT = 0.22µF, CFB_1 =
150pF, CFB_2 = 10pF, CBOOT = 0.1µF, CREGP = CREGM = 1µF, RIN_ = 30.1kΩ, RF1A = 121kΩ, RF1B = 562kΩ, RF2 = 681kΩ, RREF =
68kΩ, RL = ∞, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Note 2)
PARAMETER
Positive Supply Current
Negative Supply Current
Positive Supply Shutdown
Current
Negative Supply Shutdown
Current
Output Offset Voltage
IN_ Input Bias Current
Power-Supply Rejection Ratio
(Note 4)
Crosstalk
(Notes 5 and 6)
Continuous Output Power
Efficiency
(Notes 5, 6, and 7)
Total Harmonic Distortion
Plus Noise
Signal-to-Noise Ratio
Shutdown-to-Full Operation
Short-Circuit Output Current
Click-and-Pop
SYMBOL
IDD
ISS
CONDITIONS
No load, output filter removed
No load, output filter removed
No load, VSHDN = 0V
No load, VSHDN = 0V
Output referred, affected by RIN_ and RF_
tolerances (Note 4)
PSRR
VDD = 10V to 20V
VSS = -10V to -20V
VDD = 15V + 500mVP-P, f = 1kHz
VSS = -15V + 500mVP-P, f = 1kHz
L to R, R to L, RL = 8Ω, POUT = 1W, f = 1kHz
POUT
RL = 8Ω
fIN = 1kHz,
THD+N = 10%
(Notes 5, 6, and 7)
RL = 8Ω, VDD = 18V,
VSS = -18V
RL = 4Ω, VDD = 12V,
VSS = -12V
RL = 8Ω, POUT = 15W, THD+N = 10%
THD+N
SNR
tSON
ISC
KCP
fIN = 1kHz,
BW = 22Hz to 22kHz
(Notes 5, 6, and 7)
POUT = 14W,
RL = 8Ω, BW = 22Hz to
22kHz (Notes 5 and 6)
RL = 8Ω, POUT = 5W
RL = 4Ω, POUT = 10W
Unweighted
A-weighted
OUT_ shorted to VDD or VSS
Peak voltage, 32-samples
per second, A-weighted
(Notes 4 and 8)
Into shutdown
Out of shutdown
MIN TYP MAX UNITS
23
36
mA
-36
-23
mA
0.001 1
µA
-1 -0.03
µA
5
30
mV
-1
+1
µA
97
100
dB
67
64
-61
dB
14
21
W
9.5
93
%
0.06
%
0.08
89
dB
94
68
ms
2.9
4.5
A
-36
dBV
-36
4 _______________________________________________________________________________________
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