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MAX9700AETB PDF预览

MAX9700AETB

更新时间: 2024-01-20 01:57:37
品牌 Logo 应用领域
美信 - MAXIM 音频放大器
页数 文件大小 规格书
19页 533K
描述
1.2W, Low-EMI, Filterless, Class D Audio Amplifier

MAX9700AETB 数据手册

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1.2W, Low-EMI, Filterless,  
Class D Audio Amplifier  
Typical Operating Characteristics (continued)  
(V  
= 3.3V, SYNC = GND (SSM), T = +25°C, unless otherwise noted.)  
DD  
A
TOTAL HARMONIC DISTORTION PLUS NOISE  
vs. COMMON-MODE VOLTAGE  
EFFICIENCY vs. OUTPUT POWER  
EFFICIENCY vs. OUTPUT POWER  
100  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
10  
1
100  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
V
= 3.3V  
DD  
R = 8Ω  
L
f = 1kHz  
R = 8Ω  
L
P
= 300mW  
OUT  
DIFFERENTIAL INPUT  
R = 8Ω  
L
R = 4Ω  
L
R = 4Ω  
L
0.1  
V
= 5V  
V
= 3.3V  
DD  
DD  
f = 1kHz  
f = 1kHz  
0.01  
1.0  
0
0.5  
1.0  
1.5  
2.0  
2.5  
3.0  
0
0.5  
1.5  
2.0  
2.5  
3.0  
0
0.3  
0.6  
0.9  
1.2  
1.5  
OUTPUT POWER (W)  
COMMON-MODE VOLTAGE (V)  
OUTPUT POWER (W)  
OUTPUT POWER vs.  
SUPPLY VOLTAGE  
EFFICIENCY  
vs. SYNC INPUT FREQUENCY  
EFFICIENCY vs. SUPPLY VOLTAGE  
100  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
3.5  
3.0  
2.5  
100  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
f = 1kHz  
R = 4Ω  
L
THD+N = 10%  
R = 4Ω  
L
R = 8Ω  
L
THD+N = 1%  
R = 4Ω  
L
R = 8Ω  
THD+N = 10%  
L
2.0  
1.5  
1.0  
0.5  
0
V
= 3.3V  
DD  
f = 1kHz  
= 300mW  
P
OUT  
R = 8Ω  
L
f = 1kHz  
R = 8Ω  
L
THD+N = 1%  
P
= MAX (THD+N = 1%)  
OUT  
2.5  
3.0  
3.5  
4.0  
4.5  
5.0  
5.5  
2.5  
3.0  
3.5  
4.0  
4.5  
5.0  
5.5  
800 1000 1200 1400 1600 1800 2000  
SYNC FREQUENCY (kHz)  
SUPPLY VOLTAGE (V)  
SUPPLY VOLTAGE (V)  
COMMON-MODE REJECTION RATIO  
vs. FREQUENCY  
POWER-SUPPLY REJECTION RATIO  
vs. FREQUENCY  
OUTPUT POWER vs. LOAD RESISTANCE  
0
0
2000  
1600  
1200  
800  
400  
0
f = 1kHz  
THD+N = 1%  
INPUT REFERRED  
OUTPUT REFERRED  
INPUTS AC GROUNDED  
-10  
-20  
-30  
-40  
-50  
-60  
-70  
-80  
-10  
-20  
-30  
-40  
-50  
-60  
-70  
-80  
V
= 200mV  
IN  
P-P  
V
= 3.3V  
DD  
V
= 5V  
DD  
V
= 3.3V  
DD  
-90  
-90  
-100  
-100  
10  
100  
1k  
FREQUENCY (Hz)  
10k  
100k  
10  
100  
1k  
10k  
100k  
0
10 20 30 40 50 60 70 80 90 100  
FREQUENCY (Hz)  
LOAD RESISTANCE ()  
_______________________________________________________________________________________  
5

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