參數(shù)資料
型號: MAX9719
廠商: Maxim Integrated Products, Inc.
英文描述: Low-Cost. Mono/Stereo. 1.4W Differential Audio Power Amplifiers
中文描述: 低成本、單聲道/立體聲、1.4W差分音頻功率放大器
文件頁數(shù): 4/18頁
文件大?。?/td> 537K
代理商: MAX9719
M
500mW, Low EMI, Filterless,
Class D Audio Amplifier
4
_______________________________________________________________________________________
Typical Operating Characteristics (continued)
(V
DD
= 3.3V, V
SYNC
= GND, T
A
= +25°C, unless otherwise noted.)
100
0
0.1
0.2
0.3
0.4
0.5
10
1
0.1
0.01
0.001
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. OUTPUT POWER
M
OUTPUT POWER (W)
T
V
DD
= 3.3V
R
L
= 8
f = 10kHz
f = 1kHz
f = 100Hz
100
0
0.2
0.4
0.6
0.8
1.0
10
1
0.1
0.01
0.001
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. OUTPUT POWER
M
OUTPUT POWER (W)
T
V
DD
= 5V
R
L
= 16
f = 10kHz
f = 1kHz
f = 100Hz
100
0
0.1
0.2
0.3
0.4
10
1
0.1
0.01
0.001
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. OUTPUT POWER
M
OUTPUT POWER (W)
T
V
DD
= 3.3V
R
L
= 6
f = 1kHz
f = 100Hz
f = 10kHz
100
0
0.1
0.2
0.3
0.4
0.5
10
1
0.1
0.01
0.001
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. OUTPUT POWER
M
OUTPUT POWER (W)
T
V
DD
= 2.5V
R
L
= 8
V
= 1.25V
NO INPUT CAPACITORS
DIFFERENTIAL
INPUT
SINGLE-ENDED
100
0
0.1
0.2
0.3
0.4
0.5
10
1
0.1
0.01
0.001
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. OUTPUT POWER
M
OUTPUT POWER (W)
T
V
DD
= 3.3V
R
L
= 8
FFM
(SYNC FLOATING)
FFM
(SYNC = GND)
SSM
(SYNC = V
DD
)
100
0
0.1
0.2
OUTPUT POWER (W)
0.3
0.4
0.5
0.6
10
1
0.1
0.01
0.001
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. OUTPUT POWER
M
T
V
DD
= 3.3V
R
= 8
SYNC = 3.3V
50% DUTY CYCLE
SQUARE WAVE
f
SYNC
= 1.4MHz
f
SYNC
= 2MHz
f
SYNC
= 800kHz
10
0
0.5
1.0
1.5
2.0
2.5
3.0
1
0.1
0.01
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. COMMON-MODE VOLTAGE
M
COMMON-MODE VOLTAGE (V)
T
V
DD
= 3.3V
R
= 8
f = 1kHz
P
OUT
= 300mW
DIFFERENTIAL INPUT
0
30
20
10
50
40
90
80
70
60
100
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
EFFICIENCY vs. OUTPUT POWER
M
OUTPUT POWER (W)
E
R
L
= 8
V
DD
= 5V
f = 1kHz
R
L
= 16
0
30
20
10
50
40
90
80
70
60
100
0
0.1
0.2
0.3
0.4
0.5
EFFICIENCY vs. OUTPUT POWER
M
OUTPUT POWER (W)
E
R
L
= 8
R
L
= 6
V
DD
= 3.3V
f = 1kHz
R
L
= 16
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