參數(shù)資料
型號: MAX9759
廠商: Maxim Integrated Products, Inc.
元件分類: 運動控制電子
英文描述: 3.2W, High-Efficiency, Low-EMI, Filterless, Class D Audio Amplifier
中文描述: 3.2W、高效、低EMI、無需濾波、D類音頻放大器
文件頁數(shù): 3/20頁
文件大?。?/td> 957K
代理商: MAX9759
M
3.2W, High Efficiency, Low-EMI, Filterless,
Class D Audio Amplifier
_______________________________________________________________________________________
3
ELECTRICAL CHARACTERISTICS (V
DD
= 5.0V) (continued)
(V
DD
= PV
DD
=
SHDN
=
MUTE
= 5V, GND = PGND = 0V, SYNC = 0V (FFM). Gain = 12dB (G1 = 0, G2 = 1). Speaker load resistor
(R
L
) connected between OUT+ and OUT-, unless otherwise noted, R
L
=
, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical val-
ues are at T
A
= +25°C.) (Notes 1, 2)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
3.4
2.6
1.4
4.3
3.2
1.8
0.08
0.05
0.02
93
89
96
92
1100
1500
MAX
UNITS
R
L
= 3
R
L
= 4
R
L
= 8
R
L
= 3
R
L
= 4
R
L
= 8
R
L
= 3
R
L
= 4
R
L
= 8
THD+N = 1%
Output Power
P
OUT
THD+N = 10%
W
Total Harmonic Distortion Plus
Noise
THD+N
f
IN
= 1kHz, either
FFM or SSM,
P
OUT
= 1W
%
FFM
SSM
FFM
SSM
BW = 22Hz to
22kHz
Signal-to-Noise Ratio
SNR
P
OUT
= 1W,
R
L
= 8
A-weighted
dB
SYNC = GND (FFM mode)
SYNC = FLOAT (FFM mode)
1000
1102
1200
1837
Oscillator Frequency
f
OSC
SYNC = V
DD
(SSM mode)
1200
±
70
kHz
SYNC Frequency Lock Range
TTL-compatible clock input
1000
1600
kHz
Into shutdown
-50
Click-and-Pop Level
K
CP
Peak voltage,
A-weighted, 32 samples
per second (Notes 3, 4)
Out of shutdown
-57
dB
Efficiency
η
P
OUT
= 1W, f
IN
= 1kHz, R
L
= 8
in series
with 68μH
92
%
DIGITAL INPUTS (
SHDN
,
MUTE
, G1, G2, SYNC)
SYNC, G1, G2 Input Voltage High
SYNC, G1, G2 Input Voltage Low
V
INH
V
INL
V
INH
V
DD
x 0.9
V
V
V
DD
x 0.1
SHDN
,
MUTE
Voltage High
2
V
SHDN
,
MUTE
Voltage Low
V
INL
0.8
V
SYNC Input Resistance
SYNC Input Current
SHDN
,
MUTE,
G1, G2 Input
Current
SYNC Capacitance
DIGITAL OUTPUTS (SYNC_OUT)
Output Voltage High
Output Voltage Low
SYNC_OUT Capacitive Drive
200
k
μA
±
35
±
1
μA
10
pF
V
OH
V
OL
I
OH
= 3mA
I
OL
= 3mA
TTL-compatible clock output
2.4
V
V
pF
0.4
100
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