MAX9737 查看數據表（PDF） - Maxim Integrated
零件编号
产品描述 (功能)
生产厂家
MAX9737 Datasheet PDF : 13 Pages
| |||
Mono 7W Class D Amplifier
ELECTRICAL CHARACTERISTICS (continued)
(VPVDD = 12V, VAGND = VPGND = 0, VSHDN = VMUTE = 5V, C1 = 0.1µF, CIN = 0.47µF, C2 = CCOM = CREG = 1µF, RIN = RFB = 20kΩ,
RL = ∞, AC measurement bandwidth 22Hz to 22kHz, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.)
(Note 3)
PARAMETER
SYMBOL
OUTPUT AMPLIFIER CHARACTERISTICS
Output Amplifier Gain
AV
Output Current Limit
Output Offset
VOS
Power-Supply Rejection Ratio
PSRR
Output Power
THD + Noise
Signal-to-Noise Ratio
Noise
Efficiency
POUT
THD+N
SNR
VN
η
Click-and-Pop Level
KCP
Switching Frequency
Spread-Spectrum Bandwidth
Thermal-Shutdown Level
Thermal-Shutdown Hysteresis
Turn-On Time
tON
DIGITAL INTERFACE (SHDN, MUTE)
Input-Voltage High
VINH
Input-Voltage Low
Input-Voltage Hysteresis
VINL
Input Leakage Current
CONDITIONS
Preamplifier gain = 0dB (Note 7)
OUT+ to OUT-, TA = +25°C
VPVDD = 8V to 28V, TA = +25°C
f = 1kHz, 100mVP-P ripple
THD+N = 10%, RL = 8Ω (Note 5)
THD+N = 10%, RL = 4Ω (Note 6)
POUT = 2W, f = 1kHz, RL = 8Ω (Note 5)
A-weighted, POUT = THD+N at 1%,
fIN = 1kHz
A-weighted (Note 4)
POUT = 4W
Peak voltage, 32
samples/second,
A-weighted
(Notes 4, 5, 8)
Into shutdown
Out of shutdown
Into mute
Out of mute
From shutdown to full operation
TA = +25°C
MIN TYP MAX UNITS
13.1 13.6 14.1
dB
3
4.6
A
±2
±10
mV
65
80
dB
88
6
7.4
W
13
0.06
%
97
dB
100
µVRMS
85
%
38
38
dBV
38
38
270
300
330
kHz
±4
kHz
+160
°C
30
°C
9
10
ms
2
V
0.8
V
50
mV
±10
µA
Note 3: All devices are 100% production tested at TA = +25°C, and all temperature limits are guaranteed by design.
Note 4: Amplifier inputs AC-coupled to GND.
Note 5: 8Ω resistive load in series with 68mH inductive load connected across OUT+ and OUT- outputs.
Note 6: 4Ω resistive load in series with 33µH inductive load connected across OUT+ and OUT- outputs for VPVDD ≤ 12V.
Note 7: Output amplifier gain is defined as:
20
×
⎛
log⎝⎜
|
(VOUT+ ) − (VOUT−
| VPRE |
)
|
⎞
⎠⎟
Note 8: Mode transition controlled by SHDN and MUTE.
_______________________________________________________________________________________ 3
Share Link: 