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参数资料
| 型号： | MAX9715ETE+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 7/13页 |
| 文件大小： | 0K |
| 描述： | IC AMP AUDIO PWR 2.8W D 16TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 类型： | D 类 |
| 输出类型： | 2 通道（立体声） |
| 在某负载时最大输出功率 x 通道数量： | 2.8W x 2 @ 4 欧姆 |
| 电源电压： | 4.5 V ~ 5.5 V |
| 特点： | 消除爆音，短路保护和热保护，关闭 |
| 安装类型： | 表面贴装 |
| 供应商设备封装： | 16-TQFN-EP（5x5） |
| 封装/外壳： | 16-WQFN 裸露焊盘 |
| 包装： | 带卷 (TR) |
MAX9715
2.8W, Low-EMI, Stereo, Filterless Class D
Audio Amplifier
_______________________________________________________________________________________
3
ELECTRICAL CHARACTERISTICS (continued)
(VDD = PVDD = 5.0V, GND = PGND = 0V, VSHDN = VDD, CBIAS = 1μF, speaker impedance = 8Ω in series with 68μH connected between
OUT_+ and OUT_-, GAIN = +10.5dB, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Notes 1, 2)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Spread-Spectrum Modulation
±120
kHz
Crosstalk
Channel-to-channel, f = 10kHz, POUT = 1W,
left to right or right to left
72
dB
Into shutdown
-64
Click-and-Pop Level
KCP
Peak voltage,
A-weighted,
32 samples per
second (Note 4)
Out of shutdown
-46
dBV
Efficiency
η
RL = 8
Ω in series with 68μH, POUT = 1W
per channel, f = 1kHz
86
%
DIGITAL INPUTS (GAIN and
SHDN)
Input High Voltage
VIH
2.0
V
Input Low Voltage
VIL
0.8
V
SHDN
±1
Input Leakage Current
ILEAK
GAIN
±1.5
μA
Note 1: All devices are 100% production tested at TA = +25°C. All temperature limits are guaranteed by design.
Note 2: Speaker amplifier gain is defined as AV = (VOUT_+ - VOUT_-) / VIN.
Note 3: Click-and-pop level testing performed with an 8
Ω resistive load in series with 68μH inductive load connected across the
Class D BTL outputs. Mode transitions are controlled by the
SHDN pin. Inputs AC-coupled to GND.
Note 4: Testing performed with a resistive load in series with an inductor to simulate an actual speaker load. For RL = 4Ω, L = 33μH.
For RL = 8Ω, L = 68μH.
Typical Operating Characteristics
(VDD = 5.0V, CVDD = 3 x 0.1μF, CBIAS = 1μF, CINL = CINR = 1μF, AV = +10.5dB, TA = +25°C, unless otherwise noted.) (See the
Typical Operating Circuit/Functional Diagram)
10
1k
100k
10k
100
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. FREQUENCY
MAX9715toc01
FREQUENCY (Hz)
THD+N
(%)
1
0.1
0.001
0.01
POUT = 0.35W
POUT = 2W
VDD = 5V
RL = 4
Ω
10
1k
100k
10k
100
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. FREQUENCY
MAX9715toc02
FREQUENCY (Hz)
THD+N
(%)
1
0.1
0.001
0.01
POUT = 0.5W
POUT = 1.25W
VDD = 5V
RL = 8
Ω
100
0.001
01.0
0.5
2.0
3.0
4.0
3.5
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. OUTPUT POWER
0.01
0.1
1
10
MAX9715toc03
OUTPUT POWER (W)
THD+N
(%)
1.5
2.5
fIN = 1kHz AND 20Hz
fIN = 10kHz
VDD = 5V
RL = 4
Ω
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